Journal articles: 'Pleurotus ostreatu'

1

Bhekti Rahimah, Santun, Arto Yuwono Soeroto, Diah Dhianawaty Djunaedi, and Tatang Bisri. "Antioxidant effect of ethanolic extract of Pleurotus Ostreatus on 4-hydroxy-2-nonenal (HNE) and glutathione (GSH) level in lung rats exposed to cigarette smoke." F1000Research 10 (February 2, 2023): 1234. http://dx.doi.org/10.12688/f1000research.73697.2.

Full text

Abstract:

Background: Cigarette smoke can trigger oxidative stress. An alternative to overcome the harmful effects of cigarette smoke is through antioxidants. White oyster mushrooms (Pleurotus Ostreatusostreatus or P. ostreatus) are a source of exogenous antioxidants because many contain active compounds for potential antioxidants such as phenol and flavonoid compounds. The purpose of this study was to analyze the effect of ethanolic extract of Pleurotus P.ostreatus on 4-hydroxy-2-nonenal (HNE) and glutathione (GSH), as well as to analyze their correlation in the lung of Wistar male rats exposed to cigarette smoke. Methods: The study was a preclinical experiment conducted on 24 rats divided into four groups. The treatment was carried out for 42 days and antioxidant effects were assessed through levels of HNE and GSH in rat lungs. Groups were divided as follows: I- normal control, II- negative control, III and IV exposed to cigarette smoke for 60 minutes/day. Group III (treatment group) was treated with ethanolic extract of PleurotusP. ostreatus at 250 mg/kg BW rat/day, and group IV (comparison group) was treated with N-acetyl cysteine 600 mg /day. Data analysis used was one-way ANOVA and Kruskal Wallis test, and Spearmen rank correlation coefficient test. Results: The results showed that the group receiving ethanolic extract of PleurotusP. ostreatus had HNE levels of (44,18 ± 2,09 pg/mL) and GSH (0,04 ± 0,00 pg/mL) protein. This extract significantly increased GSH levels and inhibited the increase of HNE levels. Results of GSH (p≤0.01) showed significant results using one-way ANOVA. Conclusions: The ethanolic extract of P. ostreatus can prevent lipid peroxidation and decrease endogenous antioxidant levels in lung cells exposed to cigarette smoke. Ethanolic extract of PleurotusP. ostreatus has good antioxidant potential.

APA, Harvard, Vancouver, ISO, and other styles

2

Komoń-Zelazowska, Monika, John Bissett, Doustmorad Zafari, Lóránt Hatvani, László Manczinger, Sheri Woo, Matteo Lorito, László Kredics, Christian P. Kubicek, and Irina S. Druzhinina. "Genetically Closely Related but Phenotypically Divergent Trichoderma Species Cause Green Mold Disease in Oyster Mushroom Farms Worldwide." Applied and Environmental Microbiology 73, no. 22 (September 7, 2007): 7415–26. http://dx.doi.org/10.1128/aem.01059-07.

Full text

Abstract:

ABSTRACT The worldwide commercial production of the oyster mushroom Pleurotus ostreatus is currently threatened by massive attacks of green mold disease. Using an integrated approach to species recognition comprising analyses of morphological and physiological characters and application of the genealogical concordance of multiple phylogenetic markers (internal transcribed spacer 1 [ITS1] and ITS2 sequences; partial sequences of tef1 and chi18-5), we determined that the causal agents of this disease were two genetically closely related, but phenotypically strongly different, species of Trichoderma, which have been recently described as Trichoderma pleurotum and Trichoderma pleuroticola. They belong to the Harzianum clade of Hypocrea/Trichoderma which also includes Trichoderma aggressivum, the causative agent of green mold disease of Agaricus. Both species have been found on cultivated Pleurotus and its substratum in Europe, Iran, and South Korea, but T. pleuroticola has also been isolated from soil and wood in Canada, the United States, Europe, Iran, and New Zealand. T. pleuroticola displays pachybasium-like morphological characteristics typical of its neighbors in the Harzianum clade, whereas T. pleurotum is characterized by a gliocladium-like conidiophore morphology which is uncharacteristic of the Harzianum clade. Phenotype MicroArrays revealed the generally impaired growth of T. pleurotum on numerous carbon sources readily assimilated by T. pleuroticola and T. aggressivum. In contrast, the Phenotype MicroArray profile of T. pleuroticola is very similar to that of T. aggressivum, which is suggestive of a close genetic relationship. In vitro confrontation reactions with Agaricus bisporus revealed that the antagonistic potential of the two new species against this mushroom is perhaps equal to T. aggressivum. The P. ostreatus confrontation assays showed that T. pleuroticola has the highest affinity to overgrow mushroom mycelium among the green mold species. We conclude that the evolutionary pathway of T. pleuroticola could be in parallel to other saprotrophic and mycoparasitic species from the Harzianum clade and that this species poses the highest infection risk for mushroom farms, whereas T. pleurotum could be specialized for an ecological niche connected to components of Pleurotus substrata in cultivation. A DNA BarCode for identification of these species based on ITS1 and ITS2 sequences has been provided and integrated in the main database for Hypocrea/Trichoderma (www.ISTH.info ).

APA, Harvard, Vancouver, ISO, and other styles

3

Khaliq, Nazia, Nasir A. Khan, Nazir Javed, and Amjad S. Gondal. "Production Efficiency of Different Strains of Pleurotus ostreatus Using Various Cellulosic Agro-Wastes." International Journal of Phytopathology 2, no. 1 (April 15, 2013): 37–43. http://dx.doi.org/10.33687/phytopath.002.01.0053.

Full text

Abstract:

Different local strains of Oyster mushroom were evaluated using different cellulosic agro-wastes including cotton waste, paddy straw and wheat straw for mycelial growth, spawn running and production efficiency of different strains of Pleurotus ostreatsus. Maximum production efficiency of P. Sajur caju was observed (195.9%) on wheat straw while minimum production efficiency was recorded (132.1%) on paddy straw followed by cotton waste where the production efficiency was 107.9%. P. ostreatus (white strain) showed maximum production efficiency (113.7%) on wheat straw and minimum (88.8%) on cotton waste. While the production efficiency of P. ostreatus (gray strain) was almost same on cotton waste and wheat straw but greater than paddy straw (128.3%). The Overall performance of P. Ostreatus (gray strain) remained best during its cultivation.

APA, Harvard, Vancouver, ISO, and other styles

4

Olvera-Garcia, Cristian, Gerardo Díaz-Godínez, Carmen Sánchez, Jorge Álvarez-Cervantes, D. Martínez-Carrera, and Rubén Díaz. "Lacasas de Pleurotus ostreatus." Mexican Journal of Biotechnology 2, no. 1 (January 1, 2017): 122–34. http://dx.doi.org/10.29267/mxjb.2017.2.1.112.

Full text

Abstract:

El área de la biotecnología representa una gran importancia en la aplicación de diversos estudios científicos, uno de ellos son lacasas ya que estas son enzimas fenoloxidasas sintetizadas por organismos como insectos, bacterias, plantas y hongos en especial los de pudrición blanca. La función fisiológica de las lacasas no ha sido comprendida totalmente, pero se conoce que son caracterizadas por su capacidad de degradar compuestos fenólicos. En diversos estudios reportan que las lacasas no tienen un sustrato especifico por lo que les permite transformar materia y en algunos casos mineralizar por completo gran variedad de agentes xenobioticos y recalcitrantes. Por este motivo su estudio se ha intensificado en los últimos años, proponiendo así posibles aplicaciones que ayuden a crecer el conocimiento e información de estas. El presente trabajo es una contribución con inclinación hacia la gran gama de productos y aplicaciones como en: industrias, uso químico y clínico y del medio ambiente.

APA, Harvard, Vancouver, ISO, and other styles

5

Soylu, Mustafa Kemal, and Mingu Kang. "Güney Kore’de Mantar Yetiştiriciliği." Turkish Journal of Agriculture - Food Science and Technology 4, no. 3 (March 31, 2016): 225. http://dx.doi.org/10.24925/turjaf.v4i3.225-229.624.

Full text

Abstract:

Mushroom cultivation in South Korea is increasing fast last decades. Mushroom cultivation of South Korea is 173577 tones and South Korea gains 800 million dollars income annually. Different kind of mushroom species are cultivated and 31% enoki mushroom (Flammulina velutipes), 26% king oyster (Pleurotus eryngii), 26% oyster mushroom (Pleurotus ostreatus), 13% white buton mushroom (Agaricus bisporus) and 4% rest of the total mushroom Lentinula edodes, Ganoderma lucidum, Phellinus vb. are produced in Korea. 764 ha mushroom growing area was used for mushroom cultivation. 31% of total growing area is oyster mushroom (Pleurotus ostreatus) and 14% king oyster (Pleurotus eryngii), 6% winter mushroom (Flummulina velutipes), 16% white button mushroom (Agaricus bisporus), 3% Phellinus, 3% reishii (Ganoderma lucidum) and 27% other mushrooms. Mushroom is consumed frequently in Korea and mushroom consumption per person is 4.2 kg. Growing on log culture (oak mushroom, reishi and Phellinus), growing on shelves (Agaricus bisporus and Pleurotus ostreatus) and bottle culture (Flummulina velutipes, Pleurotus ostreatus, Pleurotus eryngii) are commonly used growing systems.

APA, Harvard, Vancouver, ISO, and other styles

6

Muhaeming, Muhaeming, Jamilah Jamilah, and Zulkarnaim Zulkarnaim. "Pengaruh penambahan serbuk jagung pada komposisi media tanam terhadap pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus)." Bioma : Jurnal Ilmiah Biologi 10, no. 2 (October 11, 2021): 158–70. http://dx.doi.org/10.26877/bioma.v10i2.7429.

Full text

Abstract:

Penambahan nutrisi perlu dilakukan untuk meningkatkan produktivitas pertumbuhan jamur tiram putih (Pleurotus ostreatus). Salah satu bahan yang dapat digunakan adalah serbuk jagung. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan serbuk jagung pada komposisi media tanam terhadap pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus) dan mengetahui konsentrasi serbuk jagung yang paling baik digunakan pada pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus). Penelitian ini mengunakan Rancangan Acak Lengkap (RAL) 4 perlakuan dan 3 ulangan sehingga diperoleh 12 satuan percobaan; P0 (perlakuan kontrol), P1 (25%), P2 (50%), dan P3 (100%). Variabel yang diukur adalah persentase pertumbuhan miselium yang diamati pada hari ke-6, 12 dan 18 dan waktu penyebaran miselium Hari Setelah Inokulasi (HSI). Data hasil penelitian dianalisis menggunakan analysis of variance (ANOVA) dengan uji lanjut menggunakan uji Beda Nyata Terkecil (BNT). Hasil penelitian menunjukkan bahwa ada pengaruh pada pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus) dengan penambahan serbuk jagung pada komposisi media tanam. Selain Itu, konsentrasi serbuk jagung yang memberikan hasil yang paling baik terhadap pertumbuhan miselium adalah P2 dengan konsentrasi 50%. Kata kunci : miselium F1; Pleurotus ostreatus; serbuk jagung ABSTRACTAdditional nutrition needs to be done to increase the productivity of oyster mushroom (Pleurotus ostreatus) growth. One of the materials that can be used is corn powder. This study aimed to determine the effect of corn powder on the planting medium composition towards mycelium growth of oyster mushroom F1 seeds (Pleurotus ostreatus) and to find the best concentration of corn powder to grow mycelium seeds F1 oyster mushroom (Pleurotus ostreatus). This research was an experimental study using a Completely Randomized Design (CRD) with 4 treatments namely; P0 (control treatment), P1 (25%), P2 (50%), and P3 (100%), and 3 repetitions so that obtained 12 experimental units. The variables measured were the mycelium growth percentage on days 6, 12, and 18, and the mycelium widespread time after the day of inoculation. The data were analyzed using ANOVA then continued on the Least Significant Difference (LSD) test. The results showed that the addition of corn powder on oyster mushroom growing media affected mycelium growth of the oyster mushroom F1 seeds (Pleurotus ostreatus). It also found that the P2 with a 50% concentration of corn powder gave the widest mycelium growth. Keywords: corn powder; mycelium; Pleurotus ostreatus

APA, Harvard, Vancouver, ISO, and other styles

7

Ahmed, Mostak, Noorlidah Abdullah, Kamal Uddin Ahmed, and M. H. M. Borhannuddin Bhuyan. "Yield and nutritional composition of oyster mushroom strains newly introduced in Bangladesh." Pesquisa Agropecuária Brasileira 48, no. 2 (February 2013): 197–202. http://dx.doi.org/10.1590/s0100-204x2013000200010.

Full text

Abstract:

The objective of this work was to evaluate yield and chemical composition of oyster mushroom strains newly introduced in Bangladesh. Strains of Pleurotus high‑king (strain PHK), P. ostreatus (strain PO2), and P. geesteranus (strains PG1 and PG3) were evaluated as to yield components and proximate composition. Pleurotus ostreatus was used as control. Pleurotus high‑king showed fastest growth of primordia, but moderate flush of effective fruiting bodies. Pleurotus geesteranus (PG1) showed higher economic yield and biological performance, and better chemical composition, especially in terms of protein and mineral contents. Pleurotus geesteranus (PG1) shows better performance than P. ostreatus (PO2), the most commercially cultivated edible species in Bangladesh, and, therefore, it should be recommended for commercial cultivation.

APA, Harvard, Vancouver, ISO, and other styles

8

Georgescu, Andreea Antonia, Andrei Florin Danet, Cristiana Radulescu, Claudia Stihi, Ioana Daniela Dulama, and Claudia Lavinia Buruleanu. "Nutritional and Food Safety Aspects Related to the Consumption of Edible Mushrooms from Dambovita County in Correlation with their Levels of Some Essential and Non-essential Metals." Revista de Chimie 68, no. 10 (November 15, 2017): 2402–6. http://dx.doi.org/10.37358/rc.17.10.5894.

Full text

Abstract:

Ten edible mushroom species collected from four sites of Dambovita County, Romania, were analyzed through ICP-MS technique in order to evaluate their content in Fe, Cu, Zn, Pb and Cd, both in cap and stipe. Wild growing species (Russula vesca, Russula alutacea, Macrolepiota procera, Cantharellus cibarius, Boletus edulis, Agaricus campestris and Pleurotus ostreatus) and cultivated species (Pleurotus ostreatus, Agaricus bisporus white and Agaricus bisporus brown) were taken into account. The data related to the elemental composition of the fruiting bodies of mushrooms are important to be known having in view the nutritional and food safety related aspects. Higher concentrations of copper, iron and zinc have been found in Pleurotus ostreatus (cap), Macrolepiota procera (stipe) and Pleurotus ostreatus cultivated (cap) respectively, as follows: 43.90�0.96 mg/g d.w., 715.15�4.52 mg/g d.w. and 379.33�2.05 mg/g d.w. Although significant Health Risk Index were determined for lead in Agaricus campestris (about 0.1 both in cap and stipe) and for cadmium in Pleurotus ostreatus (0.58 in cap), these values are under the regulated PTWI limits for adult person.

APA, Harvard, Vancouver, ISO, and other styles

9

Shi, Guohao, Shuai Wu, and Chuanhe Zhu. "Study on Application of Hawthorn Seed in Cultivation of Pleurotus ostreatus." E3S Web of Conferences 165 (2020): 03054. http://dx.doi.org/10.1051/e3sconf/202016503054.

Full text

Abstract:

In the paper, the cultivation of Pleurotus ostreatus using abandoned hawthorn seeds as a culture medium was investigated. The results indicated that the addition of hawthorn seeds will slow down the growth of Pleurotus ostreatus, but will increase the biological efficiency, nutrient quality and antioxidant capacity of fruiting bodies. Under the condition that hawthorn seed content is 30%, the cultivated Pleurotus ostreatus fruit body has the highest biological efficiency, the strongest antioxidant capacity, and the best nutritional quality.

APA, Harvard, Vancouver, ISO, and other styles

10

Hapida, Yustina. "PEMANFAATAN AMPAS TEBU DALAM MENINGKATKAN PERTUMBUHAN JAMUR TIRAM PUTIH (Pleurotus ostreatus) DI KOTA PALEMBANG DAN SUMBANGSIHNYA PADA MATA PELAJARAN BIOLOGI DI SMA." Bioilmi: Jurnal Pendidikan 5, no. 1 (June 28, 2019): 23–28. http://dx.doi.org/10.19109/bioilmi.v5i1.3508.

Full text

Abstract:

Sugar cane organic waste including biomass waste which has a high lignocellulose content, good for mycelium growth so that it can be used as a medium for the growth of Jamur Tiram Putih (Pleurotus ostreatus). This study aims to determine the amount of ampas tebu can increase the growth of Jamur Tiram Putih (Pleurotus ostreatus). The results of the studied Observation After 24th day inoculated Jamur Tiram Putih (Pleurotus ostreatus), the addition of ampas tebu to the medium only affect the growth of mycelium . The dose of ampas tebu waste added to the medium are 150 gr, 250 gr, and 350 gr. At pH 6,5, temperatures range 22-25 oC, humidity 72 % and ampas tebu dose 350 gr can increased mycelium of Jamur Tiram Putih (Pleurotus ostreatus) growth.

APA, Harvard, Vancouver, ISO, and other styles

11

Reksohadiwinoto, Budhi Santoso, Syofi Rosmalawati, Purwa Tri Cahyana, and Bambang Hariyanto. "Enzim Laccase dari Edible Mushroom untuk Pemutihan Pati Sagu Ramah Lingkungan." Jurnal Teknologi Lingkungan 18, no. 2 (July 31, 2017): 224. http://dx.doi.org/10.29122/jtl.v18i2.1790.

Full text

Abstract:

Sagu pada umumnya berwarna kecoklatan dan bau kurang sedap. Kelemahan ini dapat diperbaiki dengan penambahan enzim Laccase dalam produksi pati sagu. Tujuan penelitian ini adalah menghasilkan enzm Laccase dari edible mushroom. Bahan yang digunakan adalah jamur Plurotus ostreatus, Agaricus bisporus dan Rhyzopus oligosporus yang diperoleh dari pasar dan bahan kimia media. Metoda yang digunakan adalah melalui fermentasi cair menggunakan skala flask. Hasil yang diperoleh bahwa Pleurotus ostreatus pada uji agar cawan petri membentuk zona ring merah kecoklatan yang tebal menunjukan kemampuan oxidase senyawa guaicol dan syringaldazine. Uji fermentasi cair skala flaks 500 mL kultur jamur Pleurotus ostreatus, Agaricus bisporus, Rhyzopus oligosporus selama 21 hari. Hasil Laccase yang diproduksi oleh Pleurotus ostreatus mempunyai aktivitas tertinggi yaitu mencapai 774 U/L pada analisa spektrofotometer menggunakan substrat ABTS. Sementara itu, Agaricus bisporus dan Rhyzopus oligosporus mencapai puncak produksi laccase masing-masing 484 U/L dan 480 U/L.Kata kunci : Pleurotus ostreatus, Agaricus bisporus, Rhyzopus oligosporus, Laccase, bioleaching, dan kualitas pati sagu

APA, Harvard, Vancouver, ISO, and other styles

12

Leonov, Vadim Vyacheslavovich, Svetlana Pavlovna Prontisheva, Ivan Aleksandrovich Bulatov, Lyubov' Vyacheslavovna Leonova, Maksim Viktorovich Efanov, and Irina Viktorovna Ananina. "OPTIMIZATION OF THE COMPOSITION OF LIGNOCELLULOSIC SUBSTRATE BASED ON PEAT AND STRAW FOR THE CULTIVATION OF MUSHROOMS PLEUROTUS OSTREATUS." chemistry of plant raw material, no. 2 (January 12, 2019): 225–30. http://dx.doi.org/10.14258/jcprm.2019024258.

Full text

Abstract:

The aim of the study was to optimize the composition of lignocellulosic substrate based on peat and straw for growing fungi Pleurotus ostreatus. To achieve this goal, the following main tasks were set: analysis of the initial plant raw materials of peat and straw; study of the effect of an aqueous extract of peat on the growth of fungi Pleurotus ostreatus; study of the effect of the component composition of the substrate on the cultivation of oyster mushrooms. Investigated the influence of the following relations medium : an aqueous extract of peat– 1 : 1; 1 : 2; 1 : 3; 1 : 4 and 1 : 10. The growth of fungi Pleurotus ostreatus was controlled by reducing the concentration of glucose and increasing the concentration of total protein in the culture medium. The kinetic characteristics of the growth of fungi Pleurotus ostreatus are determined from changes in the mass fractions of lignin, cellulose, easily and hardly hydrolyzed polysaccharides in substrates depending on the duration of cultivation of oyster mushrooms. It is shown that the lignocarbon straw complex is more available for biodegradation than the lignocarbon peat complex. It was found that the addition of peat to the substrate together with straw creates optimal conditions for the growth of fungi Pleurotus ostreatus. To optimize the production of Pleurotus ostreatus, it is advisable to recommend a combined substrate with the following ratios of peat to breakage – 30 : 70% or 40 : 60%, respectively.

APA, Harvard, Vancouver, ISO, and other styles

13

Lee, Kek Kin, Risky Ayu Kristanti, Arma Yulisa, Rubiyatno, Fitria Ningsih, Muhammad Syafrudin, Erika Hernandes, and Mihaela Albescu. "Biosorption of Synthetic Dye by Macrofungi." Industrial and Domestic Waste Management 2, no. 2 (October 11, 2022): 61–70. http://dx.doi.org/10.53623/idwm.v2i2.108.

Full text

Abstract:

This research project aimed to provide an environmentally friendly method for the decolorization and biosorption of synthetic dye by utilizing fungi as biosorbents. The study was carried out by first growing the fungi in solid medium and then using the fungi as biosorbent to absorb dye in aqueous solution. In the first stage, screening experiments were carried out among 5 different types of fungi, and Pleurotus ostreatus was determined to have the highest growth rate. The Pleurotus ostreatus was recultivated with Remazol Brilliant Blue R dye to determine its dye removal ability. Pleurotus ostreatus sp. exhibited vigorous dye decolorization in agar medium within 2 days. By carrying out batch analysis, 4 parameters were examined, which were the effect of pH, surfactant concentration (Tween 80), salinity concentration and dosage of biosorbent. The results showed that the maximum dye decolourization by Pleurotus ostreatus can be achieved through establishing an acidic condition of pH 2, addition of 0.1mL of Tween 80, 0mg/l of sodium chloride concentration, and dosage of 8 plugs. Lastly, the experimental data was found to fit the Jovanovic Isotherm the most. In conclusion, Pleurotus ostreatus is capable of decolourizing and adsorbing dye particles in the dye aqueous solution.

APA, Harvard, Vancouver, ISO, and other styles

14

Quintana Zamora, Jorge Gustavo, Fred Eduardo Taranto Moreira, Mercedes Cleotapra Moreria Menéndez, and María Aurora Parrales Gallo. "Producción del Pleurotus ostreatus utilizando cáscaras de maíz y leguminosas." Ciencia y Tecnología 15, no. 2 (December 27, 2022): 14–19. http://dx.doi.org/10.18779/cyt.v15i2.578.

Full text

Abstract:

Pleurotus ostreatus, es un hongo comestible que se produce en una gran variedad de residuos agrícolas y agroindustriales, debido a su gran capacidad de colonizar y degradar sustratos lignocelulósicos. El objetivo de este trabajo fue evaluar la cinética de crecimiento radial, para la obtención de micelio y la producción de Pleurotus ostreatus en estado fresco, utilizando para su crecimiento cáscara de mazorca de maíz tierno, cáscara de leguminosas (arveja, frejol y haba). En la cinética de crecimiento radial, que fue la obtención de micelio el que mejor comportamiento demostró en el crecimiento de Pleurotus ostreatus fue el medio de cultivo Papa dextrosa agar más la inclusión de cáscara de arveja (Pisum sativum) 74 mm a las 168 horas de crecimiento, mientras que el mejor rendimiento de cosecha de Pleurotus ostreatus fue la cáscara de haba (Vicia faba) 151.40 g de Pleurotus ostreatus, por kilogramo de sustrato en la primera cosecha. Con estos resultados se tiene una alternativa de utilizar los residuos de hortalizas que se generan en el mercado central del cantón Quevedo, Provincia de Los Ríos, Ecuador, en la obtención de un alimento y disminuir la contaminación que los residuos generan en el medio ambiente.

APA, Harvard, Vancouver, ISO, and other styles

15

Kalmış, Erbil, Nuri Azbar, and Fatih Kalyoncu. "Evaluation of two wild types of Pleurotus ostreatus (MCC07 and MCC20) isolated from nature for their ability to decolorize Benazol Black ZN textile dye in comparison to some commercial types of white rot fungi: Pleurotus ostreatus, Pleurotus djamor, and Pleurotus citrinopileatus." Canadian Journal of Microbiology 54, no. 5 (May 2008): 366–70. http://dx.doi.org/10.1139/w08-025.

Full text

Abstract:

Biological decolorization of Benazol Black ZN, a reactive azo-type textile dyestuff, was comparatively studied using 3 different commercial-type white rot fungi strains ( Pleurotus ostreatus , Pleurotus cornucopiae var. citrinopileatus, Pleurotus djamor , and 2 wild types of P. ostreatus (MCC07 and MCC20) isolated from the nature. The initial dye concentrations in the medium were 500 and 1000 mg·L–1. All the organisms studied decolorized Benazol Black ZN to varying degrees. At low dye concentration, both commercial and wild type of P. ostreatus resulted in the best decolorization, conversely, wild-type P. ostreatus (MCC07) was found to be much more robust against increasing dye concentration and provided the best decolorization efficiency at high dye concentration.

APA, Harvard, Vancouver, ISO, and other styles

16

Adejonwo, Oluwakemi Abimbola, Bamidele Oluwarotimi Omitoyin, Olugbenga Adeniran Ogunwole, Emmanuel Kolawole Ajani, and Siyanbola Adewumi Omitoyin. "Chemical characterisation and in vitro assessment of two mushroom stalks as prebiotics for Clarias gariepinus (Burchell, 1822)." Agricultura Tropica et Subtropica 54, no. 1 (January 1, 2021): 104–15. http://dx.doi.org/10.2478/ats-2021-0011.

Full text

Abstract:

Abstract The potentials of mushroom stalks as supplements in aqua-feeds have been grossly underutilised. Stalk meals of two Pleurotus species were analysed for proximate composition, fibre fractions, mineral and phytochemical constituents. In vitro digestibility and fermentability were assessed using caecal digesta from Clarias gariepinus (n = 108; weight: 138 ± 10.8 g). Stalks of Pleurotus pulmonarius and Pleurotus ostreatus were air-dried at ambient room temperature and milled. Pleurotus ostreatus contained higher (P < 0.05) moisture, crude protein, ether extract and crude fibre than P. pulmonarius stalks which had higher (P < 0.05) nitrogen-free extract. Pleurotus ostreatus had higher (P < 0.05) neutral detergent fibre, acid detergent fibre, acid detergent lignin and cellulose but lower (P > 0.05) hemicellulose than P. pulmonarius. Except in manganese and iron content, P. ostreatus contained higher (P < 0.05) sodium, calcium, magnesium, potassium, phosphorus, copper and zinc than P. pulmonarius. Both stalks contained flavonoids, phlobatannin, terpenoid, cardiac glycosides, steroids and antraquinone. Substrate loss was higher (P < 0.05) in P. pulmonarius (0.20 g) than P. ostreatus (0.15 g). Maximum rate of gas production was more (P < 0.05) for P. pulmonarius (0.16 mL/h) at 4.96 hours compared to 0.04 mL/h at 6.04 hours for P. ostreatus. Both stalk meals were partially resistant to in vitro digestibility and were fermentable. Hence, they possess favourable prebiotics characteristics and can be used as supplement in aqua feed.

APA, Harvard, Vancouver, ISO, and other styles

17

Shloul, Tariq H., Omar M. Atrooz, and Mohammad H. Abukhalil. "Influence of pH, Temperature and Various Heavy Metals on β-galactosidase Activity in the Crude Extract of Pleurotus ostreatus." Journal of Applied Biotechnology 5, no. 1 (January 18, 2017): 29. http://dx.doi.org/10.5296/jab.v5i1.10473.

Full text

Abstract:

The aim of this study was to determine the activity of β-galactosidase in the crude extracts of Pleurotus ostreatus in the presence and absence of various heavy metals. β-galactosidase (EC 3.2.1.23), is a hydrolase enzyme which helps in the hydrolysis of lactose into monosaccharides. Characterization of β-galactosidase from Pleurotus ostreatus was achieved using the substrate 2-nitrophenyl β-D-galactopyranoside (ONPG). The pH and temperature profiles of β-galactosidase showed maximum activity at pH 3.0 and at 50°C, respectively. The Vmax and Km values of β-galactosidase using ONPG as a substrate was found to be 0.571 μmol/min and 0.307 mM, respectively. These results revealed that the β-galactosidase activity in the crude extracts of Pleurotus ostreatus was changed in the presence of different heavy metals. The results indicated that Hg2+ and Mo2+ have an uncompetitive inhibition on the β- galactosidase activity in the extract of Pleurotus ostreatus by decreasing both Km and Vmax values. while Al3+, Cu2+, Cr3+, Zn2+ and Ni2+ showed mixed inhibition activity by decreasing Vmax values and by increasing Km values. However, Pb2+ was found to act as a non-competitive inhibition by decreasing Vmax value. The findings suggested that crude extract of Pleurotus ostreatus can be used as a source of β-galactosidase for medical and industrial purposes.

APA, Harvard, Vancouver, ISO, and other styles

18

Zhang, Xiaoyan, Haijing Hu, Yifan Wang, Junjie Yan, Yu Liu, Jianrui Wang, and Xianhao Cheng. "Multiplex Detection of Pleurotus ostreatus Mycoviruses." Current Issues in Molecular Biology 44, no. 11 (November 19, 2022): 5778–87. http://dx.doi.org/10.3390/cimb44110392.

Full text

Abstract:

Mycoviruses are viruses that specifically infect and replicate in fungi. Several mycoviruses have been previously reported in Pleurotus ostreatus, including the oyster mushroom spherical virus (OMSV), oyster mushroom isometric virus (OMIV), Pleurotus ostreatus spherical virus (POSV), and Pleurotus ostreatus virus 1 (PoV1). This study was designed to develop a multiplex RT-PCR for simultaneous detection and differentiation of the four P. ostreatus mycoviruses. Four pairs of primers were designed from conserved regions based on the reported sequences and the multiplex RT-PCR products were 672 bp for OMSV, 540 bp for OMIV, 310 bp for POSV, and 200 bp for PoV1. The optimal annealing temperature of the multiplex RT-PCR was 62 °C and the detection limits of the plasmids were 100 fg for OMSV and OMIV and 1 pg for POSV and PoV1. This technique was successfully applied for the detection of OMSV, OMIV, and POSV from different P. ostreatus strains and the plasmid containing the PoV1 sequence. This methodology can serve as a powerful diagnostic tool for the survey of the incidence and epidemiology of the four P. ostreatus mycoviruses, further contributing to the prevention and treatment of mycoviral diseases in P. ostreatus.

APA, Harvard, Vancouver, ISO, and other styles

19

Syamsiar, Z., A. Ambo, Rismaneswati, and R. Iradhatullah. "Germination speed and flowing age of corn with the utilization of organic materials fortuned Pleurotus ostreatus dry land." IOP Conference Series: Earth and Environmental Science 886, no. 1 (November 1, 2021): 012039. http://dx.doi.org/10.1088/1755-1315/886/1/012039.

Full text

Abstract:

Abstract Organic matter plays an effective role in restoring soil fertility. This indicator of soil fertility lies in the organic content of the soil. One of the organic materials that have been proven to improve land quality is biochar and chicken manure. In addition, the use of Pleurotus ostreatus can increase the hormone content in organic matter. The purpose of this study was to determine the speed of germination and flowering speed of maize (Zea mays) with the application of organic matter enriched with the fungus Pleurotus ostreatus. The study was structured using a Split Plot Design (RPT). The main plot is organic matter, and the subplot is the administration of Pleurotus ostreatus. The study consisted of 12 treatment combinations which were repeated 3 times to obtain 36 plots of observation units. The results showed that the application of treatment had a significant and very significant effect on the speed of germination and flowering speed of maize (Zea mays). The combination treatment of manure + biochar with 10% Pleurotus ostreatus gave the speed of germination on day 4.33 and flowering speed on day 47.33.

APA, Harvard, Vancouver, ISO, and other styles

20

García-Vergara, Zenia, Yurisdan Paneque-Díaz, Armando Antonio Macías-González, and Daniela de la Caridad Rodríguez-Guerrero. "Comparación de las propiedades antioxidantes del Pleurotus ostreatus antes y después de tratamientos térmicos." Revista Científica Arbitrada de Investigación en Comunicación, Marketing y Empresa REICOMUNICAR 5, no. 9 (January 6, 2022): 221–32. http://dx.doi.org/10.46296/rc.v5i9.0045.

Full text

Abstract:

Pleurotus ostreatus es una especie de hongo comestible distribuido a nivel mundial que reviste importancia, desde el punto de vista comercial por su valor nutricional. Aún son insuficientes los estudios micoquímicos y se conoce poco sobre su relación con las propiedades antioxidantes. La importancia de conocer dichas propiedades radica en que estos compuestos poseen la capacidad de inhibir radicales libres ejerciendo acción en todos los procesos en los que se reduce o detiene el proceso de oxidación. Los antioxidantes como agentes reductores junto con otros agentes reductores de la dieta como: la vitamina C, E y los carotenoides protegen los tejidos del cuerpo. Por lo anterior el objetivo del presente trabajo de investigación es comparar las propiedades antioxidantes del Pleurotus ostreatus antes y después de tratamientos térmicos. Se realizó una recopilación de información a través de una revisión bibliográfica en diferentes bases de datos como Revista SciELO, Redalyc, Scopus y Google Académico para dar respuesta a dicho objetivo. La seta comestible Pleurotus ostratus presenta una excelente capacidad antioxidante, entre las sustancias antioxidantes se pueden mencionar compuestos fenólicos, flavonoides, vitamina, polisacáridos, aminoácidos, esteroles y tocoferoles. Las propiedades antioxidantes del Pleurotus ostreatus se ven afectadas al ser tratados térmicamente. Palabras claves: propiedades antioxidantes, setas comestibles, Pleurotus ostreatus.

APA, Harvard, Vancouver, ISO, and other styles

21

España Rodríguez, Montserrat, Edna María Hernández Domínguez, Brianda Susana Velázquez De Lucio, Matilde Villa García, and Jorge Álvarez Cervantes. "PRODUCTIVIDAD Y ANÁLISIS QUÍMICO PROXIMAL DE Pleurotus spp. CRECIDOS SOBRE BAGAZO DE Agave salmiana COMO SUSTRATO ALTERNATIVO." Agrociencia 55, no. 7 (November 15, 2021): 569–81. http://dx.doi.org/10.47163/agrociencia.v55i7.2604.

Full text

Abstract:

El bagazo de Agave salmiana es un subproducto de la elaboración de bebidas alcohólicas (pulque, mezcal), extracción de inulina o de agua miel, el cual puede aprovecharse para el cultivo de hongos comestibles. Con la hipótesis de que la característica química del bagazo de agave permite el crecimiento de Pleurotus spp. sin afectar valor nutricional; el objetivo de esta investigación fue estimar eficiencia biológica, tasa de productividad y obtener el análisis químico proximal de Pleurotus sp. y Pleurotus ostreatus crecidos sobre bagazo de Agave salmiana como sustrato alternativo al comercial. Para el estudio Pleurotus sp. se recuperó de crecimiento natural sobre A. salmiana y P. ostreatus de una cepa comercial; para el cultivo se utilizó bagazo del agave y paja de cebada como control. De los cuerpos fructíferos obtenidos se determinó la composición química proximal, eficiencia biológica y tasa productiva de ambos hongos, así como el análisis proximal del bagazo de agave antes y después del cultivo. Los datos se analizaron con la prueba de Student con probabilidad de error en p≤0.05. El hongo aislado de A. salmiana presentó características morfológicas propias del género Pleurotus. El bagazo de maguey pulquero presentó 0.52% de nitrógeno total y 3.28% de proteína cruda y estos valores aumentaron (0.59, 3.72%) después del cultivo. En Pleurotus sp. la eficiencia biológica y tasa productiva fue mayor (p≤0.05) en fibra de maguey (52.30%, 0.87% d-1); mientras P. ostreatus resultó más productivo (59.69%, 0.99% d-1) sobre paja de cebada. El análisis químico proximal de los hongos mostró valores favorables respecto a los valores de referencia del género Pleurotus; el contenido de proteína cruda de P. ostreatus fue 18.19% y 24.04% en Pleurotus sp. El bagazo de maguey pulquero mostró que posee características químicas que satisfacen y permiten el desarrollo del género Pleurotus, y es apto para su uso como sustrato alternativo.

APA, Harvard, Vancouver, ISO, and other styles

22

Bernaditha Michelle Lesmana, Aulia Rahmi Pawestri, Michelle Anisa Ujianto, Khonsaa Aadilah, Zahrah Firdaus, Felita Galih Perwita Sari, Edwin Widodo, Eviana Norahmawati, Sofy Permana, and Agustina Tri Endharti. "Therapeutic implication of Pleurotus ostreatus on microRNAs expression in acute myeloid leukemia: A systematic review." World Journal of Advanced Research and Reviews 17, no. 1 (January 30, 2023): 934–47. http://dx.doi.org/10.30574/wjarr.2023.17.1.0123.

Full text

Abstract:

Until now, the modality of choice for patients with acute myeloid leukemia (AML) is chemotherapy. However, chemotherapy has resulted in severe side effects, especially for AML patients aged over 60 years. In addition, cases of multidrug resistance (MDR) have been reported. Pleurotus ostreatus or oyster mushroom has been widely known to possess anticancer effects. The effect might be elicited by its active ingredients. On the other hand, miRNA as a therapeutic target is thought to interact with the active compounds of Pleurotus ostreatus, thus making it a potential complementary treatment for AML. This review was conducted to determine the effect of the active ingredients in Pleurotus ostreatus through their mechanism of action on certain miRNAs. The review was conducted using 49 literatures that have passed the quality assessment using the CRAAP criteria and the JBI checklist. The literature search was carried out using 4 databases, including PubMed, Research Gate, ProQuest, and Science Direct. The systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. The results of the systematic review were synthesized in a narrative review without using statistical tests. In summary, at the molecular level, the active compounds in Pleurotus ostreatus can regulate several miRNAs that affect the proliferation and apoptosis of leukemia cells. In the future, it is necessary to carry out molecular and clinical analysis regarding the relationship between the active compounds of Pleurotus ostreatus and the expression of AML-related miRNAs.

APA, Harvard, Vancouver, ISO, and other styles

23

Sabantina, Lilia, Franziska Kinzel, Thomas Hauser, Astrid Többer, Michaela Klöcker, Christoph Döpke, Robin Böttjer, Daria Wehlage, Anke Rattenholl, and Andrea Ehrmann. "Comparative Study of Pleurotus ostreatus Mushroom Grown on Modified PAN Nanofiber Mats." Nanomaterials 9, no. 3 (March 22, 2019): 475. http://dx.doi.org/10.3390/nano9030475.

Full text

Abstract:

Pleurotus ostreatus is a well-known edible mushroom species which shows fast growth. The fungus can be used for medical, nutritional, filter, or packaging purposes. In this study, cultivation experiments were carried out with Pleurotus ostreatus growing on polyacrylonitrile (PAN) nanofiber mats in the presence of saccharose and Lutrol F68. The aim of this study was to find out whether modified PAN nanofiber mats are well suited for the growth of fungal mycelium, to increase growth rates and to affect mycelium fiber morphologies. Our results show that Pleurotus ostreatus mycelium grows on nanofiber mats in different morphologies, depending on the specific substrate, and can be used to produce a composite from fungal mycelium and nanofiber mats for biomedical and biotechnological applications.

APA, Harvard, Vancouver, ISO, and other styles

24

Díaz-Godínez and C. Sánchez, G. "In situ digestibility and nutritive value of maize straw generated after Pleurotus ostreatus cultivation." Canadian Journal of Animal Science 82, no. 4 (December 1, 2002): 617–19. http://dx.doi.org/10.4141/a02-031.

Full text

Abstract:

The cultivation of Pleurotus ostreatus on maize straw enhanced the nutritive value and the in situ digestibility of the straw. The addition of maize straw generated after mushroom cultivation to the diets of sheep increased the liveweight gain of the sheep and the efficiency of feed conversion of the straw. Key words: Daily voluntary diet intake, Pleurotus ostreatus cultivation, dry matter loss

APA, Harvard, Vancouver, ISO, and other styles

25

Sharma, Indira Mohini. "Sustainability of Environmental Resources with Pleurotus Ostreatus to Promote the Growth by Degradation of Refinery Oils Waste." Technoarete Transactions on Renewable Energy, Green Energy and Sustainability 2, no. 3 (July 14, 2022): 14–19. http://dx.doi.org/10.36647/ttregs/02.03.a002.

Full text

Abstract:

Acquaintance of environmental issues and their increased risks, Industrial development, rehabilitation and restoration work creating a big Ecological imbalance. Pleurotus Ostreatus play a very vital role for the sustainable resource development maintaining the ecosystem by scavenging oil refinery waste that pollute the soil, air & water too .oils pollutants forming upper most close layer prevent to growing new species. Bioremediation is becoming booming due to its ecological approach. Their scavenging ability suggests their usefulness with their enzymatic activity to break down oily substances or growth on it remove pollutants. Pleurotus Ostreatus have the potential to break down oil & toxins at maximum extent.Studies includes the estimation of nutrients in oily Compound suck by pleutrotus Ostreatus cultivated on three agricultural & oil refinery waste product were carried by using Cup plate method on Soyabean oil, Coconut oil & Mustard Oils in different oil refinery& extraction shops.Result were obtained from the given oil compound at different concentrations10μl, 20μl,30μl,40μl Which also comprised the control & combined effect of oil assessed . Soyabean oil shows maximum zone of exhibition, growth area than Coconut oil then mustard oil in the triplicates Pleurotus Ostreatus show Miraculously growth on oil as activator ,Growth on waste materials decomposition as a bioremideator [22] suggesting a link between Symbiosis and environmental cleanup. Keyword : Pleurotus Ostreatus, Zone of exhibition, Bioremediation, Cup plate method

APA, Harvard, Vancouver, ISO, and other styles

26

Guevara-Viejó, Fabricio, Juan Diego Valenzuela-Cobos, Purificación Vicente-Galindo, and Purificación Galindo-Villardón. "Application of K-Means Clustering Algorithm to Commercial Parameters of Pleurotus spp. Cultivated on Representative Agricultural Wastes from Province of Guayas." Journal of Fungi 7, no. 7 (July 4, 2021): 537. http://dx.doi.org/10.3390/jof7070537.

Full text

Abstract:

Data of the commercial parameters of Pleurotus ostreatus and Pleurotus djamor were analyzed using the data mining technique: K-means clustering algorithm. The parameters evaluated were: biological efficiency, crop yield ratio, productivity rate, nutritional composition, antioxidant and antimicrobial activities in the production of fruit bodies of 50 strains of Pleurotus ostreatus and 50 strains of Pleurotus djamor, cultivated on the most representative agricultural wastes from the province of Guayas: 80% sugarcane bagasse and 20% wheat straw (M1), and 60% wheat straw and 40% sugarcane bagasse (M2). The database of the parameters obtained in experimental procedures was grouped into three clusters, providing a visualization of the strains with a higher relation to each parameter (vector) measured.

APA, Harvard, Vancouver, ISO, and other styles

27

Bhekti Rahimah, Santun, Arto Yuwono Soeroto, Diah Dhianawaty Djunaedi, and Tatang Bisri. "Antioxidant effect of ethanolic extract of Pleurotus Ostreatus on 4-hydroxy-2-nonenal (HNE) and glutathione (GSH) level in lung rats exposed to cigarette smoke." F1000Research 10 (December 3, 2021): 1234. http://dx.doi.org/10.12688/f1000research.73697.1.

Full text

Abstract:

Background: Cigarette smoke can trigger oxidative stress. An alternative to overcome the harmful effects of cigarette smoke is through antioxidants. White oyster mushrooms (Pleurotus Ostreatus) are a source of exogenous antioxidants because many contain active compounds for potential antioxidants such as phenol and flavonoid compounds. The purpose of this study was to analyze the effect of ethanolic extract of Pleurotus ostreatus on 4-hydroxy-2-nonenal (HNE) and glutathione (GSH), as well as to analyze their correlation in the lung of Wistar male rats exposed to cigarette smoke. Methods: The study was a preclinical experiment conducted on 24 rats divided into four groups. The treatment was carried out for 42 days and antioxidant effects were assessed through levels of HNE and GSH in rat lungs. Groups were divided as follows: I- normal control, II- negative control, III and IV exposed to cigarette smoke for 60 minutes/day. Group III (treatment group) was treated with ethanolic extract of Pleurotus ostreatus at 250 mg/kg BW rat/day, and group IV (comparison group) was treated with N-acetyl cysteine 600 mg /day. Data analysis used was one-way ANOVA and Kruskal Wallis test, and Spearmen rank correlation coefficient test. Results: The results showed that the group receiving ethanolic extract of Pleurotus ostreatus had HNE levels of (44,18 ± 2,09 pg/mL) and GSH (0,04 ± 0,00 pg/mL) protein. This extract significantly increased GSH levels and inhibited the increase of HNE levels. Results of GSH (p≤0.01) showed significant results using one-way ANOVA. Conclusions: The ethanolic extract of P. ostreatus can prevent lipid peroxidation and decrease endogenous antioxidant levels in lung cells exposed to cigarette smoke. Ethanolic extract of Pleurotus ostreatus has good antioxidant potential.

APA, Harvard, Vancouver, ISO, and other styles

28

DONINI, Lorena Pastorini, Eduardo BERNARDI, Elisandra MINOTTO, and José Soares do NASCIMENTO. "CULTIVO DE SHIMEJII EM SUBSTRATO CAPIM-ELEFANTE SUPLEMENTADO COM DIFERENTES TIPOS DE FARELOS." Scientia Agraria 10, no. 1 (January 1, 2009): 067. http://dx.doi.org/10.5380/rsa.v10i1.12518.

Full text

Abstract:

O objetivo deste trabalho foi avaliar o cultivo de linhagens de Pleurotus ostreatus em substrato capim-elefante suplementado com diferentes tipos de farelos. O experimento consistiu no uso do substrato capim-elefante suplementado com farelos de soja, trigo, arroz ou milho em concentrações de 0, 10 ou 20%, colocados em frascos que foram semeados com as linhagens BF24, DF33 e HF19 de Pleurotus ostreatus e incubados a temperatura ambiente (20 - 26 0C). Depois da completa colonização do substrato, os frascos foram transferidos para uma câmara de frutificação com temperatura entre 20 e 28 ºC e umidade relativa de 75 - 90%. A linhagem BF24 foi mais produtiva e a suplementação do capim-elefante com farelo de trigo em concentrações de 10 e 20% aumentou a produtividade e eficiência biológica das três linhagens de Pleurotus ostreatus.

APA, Harvard, Vancouver, ISO, and other styles

29

Taofiq, Oludemi, Ana Rita Silva, Cristina Costa, Inês Ferreira, João Nunes, Miguel A. Prieto, Jesús Simal-Gandara, Lillian Barros, and Isabel C. F. R. Ferreira. "Optimization of ergosterol extraction from Pleurotus mushrooms using response surface methodology." Food & Function 11, no. 7 (2020): 5887–97. http://dx.doi.org/10.1039/d0fo00301h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Zhou, Hong Li, Li Cheng, and Shi Lin. "Study on Extraction Technology of Polysaccharide from Pleurotus ostreatus." Advanced Materials Research 690-693 (May 2013): 1400–1403. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.1400.

Full text

Abstract:

To study the extraction technology of polysaccharide from Pleurotus ostreatus. In order to explore the influence of temperature, time, and solid-liquid ratio on polysaccharide yield, single factor test had been done. The optimum extraction conditions was obtained though orthogonal test and interactive analysis: extraction temperature 50°C, extraction time 2h, and solid-liquid ratio 1:30. Under those conditions, the extraction rate of Pleurotus ostreatus polysaccharides was 28.79%.

APA, Harvard, Vancouver, ISO, and other styles

31

Ahmed, Osama M., Hossam Ebaid, El-Shaymaa El-Nahass, Mahmoud Ragab, and Ibrahim M. Alhazza. "Nephroprotective Effect of Pleurotus ostreatus and Agaricus bisporus Extracts and Carvedilol on Ethylene Glycol-Induced Urolithiasis: Roles of NF-κB, p53, Bcl-2, Bax and Bak." Biomolecules 10, no. 9 (September 14, 2020): 1317. http://dx.doi.org/10.3390/biom10091317.

Full text

Abstract:

This study was designed to assess the nephroprotective effects of Pleurotus ostreatus and Agaricus bisporus aqueous extracts and carvedilol on hyperoxaluria-induced urolithiasis and to scrutinize the possible roles of NF-κB, p53, Bcl-2, Bax and Bak. Phytochemical screening and GC-MS analysis of mushrooms’ aqueous extracts were also performed and revealed the presence of multiple antioxidant and anti-inflammatory components. Hyperoxaluria was induced in Wistar rats through the addition of 0.75% (v/v) ethylene glycol in drinking water for nine weeks. The ethylene glycol-administered rats were orally treated with Pleurotus ostreatus and Agaricus bisporus aqueous extracts (100 mg/kg) and carvedilol (30 mg/kg) daily during the last seven weeks. The study showed that Pleurotus ostreatus, Agaricus bisporus and carvedilol all successfully inhibited ethylene glycol-induced histological perturbations and the elevation of serum creatinine, serum urea, serum and urinary uric acid, serum, urinary and kidney oxalate, urine specific gravity, kidney calcium, kidney NF-κB, NF-κB p65, NF-κB p50, p53, Bax and Bak expressions as well as serum TNF-α and IL-1β levels. Moreover, the treatment decreased the reduction in urinary creatinine, urinary urea, ratios of urinary creatinine to serum creatinine and urinary urea to serum urea, Fex Urea and Bcl-2 expression in kidney. In conclusion, although Pleurotus ostreatus and Agaricus bisporus extracts and carvedilol all significantly inhibited the progression of nephrolithiasis and showed nephroprotective effects against ethylene glycol-induced kidney dysfunction, Pleurotus ostreatus and Agaricus bisporus seemed to be more effective than carvedilol. Moreover, the nephroprotective effects may be mediated via affecting NF-κB activation, extrinsic apoptosis and intrinsic apoptosis pathways.

APA, Harvard, Vancouver, ISO, and other styles

32

Elhusseiny, Shaza M., Taghrid S. El-Mahdy, Mohamed F. Awad, Nooran S. Elleboudy, Mohamed M. S. Farag, Mahmoud A. Yassein, and Khaled M. Aboshanab. "Proteome Analysis and In Vitro Antiviral, Anticancer and Antioxidant Capacities of the Aqueous Extracts of Lentinula edodes and Pleurotus ostreatus Edible Mushrooms." Molecules 26, no. 15 (July 30, 2021): 4623. http://dx.doi.org/10.3390/molecules26154623.

Full text

Abstract:

In this study, we examined aqueous extracts of the edible mushrooms Pleurotus ostreatus (oyster mushroom) and Lentinula edodes (shiitake mushroom). Proteome analysis was conducted using LC-Triple TOF-MS and showed the expression of 753 proteins by Pleurotus ostreatus, and 432 proteins by Lentinula edodes. Bioactive peptides: Rab GDP dissociation inhibitor, superoxide dismutase, thioredoxin reductase, serine proteinase and lectin, were identified in both mushrooms. The extracts also included promising bioactive compounds including phenolics, flavonoids, vitamins and amino acids. The extracts showed promising antiviral activities, with a selectivity index (SI) of 4.5 for Pleurotus ostreatus against adenovirus (Ad7), and a slight activity for Lentinula edodes against herpes simplex-II (HSV-2). The extracts were not cytotoxic to normal human peripheral blood mononuclear cells (PBMCs). On the contrary, they showed moderate cytotoxicity against various cancer cell lines. Additionally, antioxidant activity was assessed using DPPH radical scavenging, ABTS radical cation scavenging and ORAC assays. The two extracts showed potential antioxidant activities, with the maximum activity seen for Pleurotus ostreatus (IC50 µg/mL) = 39.46 ± 1.27 for DPPH; 11.22 ± 1.81 for ABTS; and 21.40 ± 2.20 for ORAC assays. This study encourages the use of these mushrooms in medicine in the light of their low cytotoxicity on normal PBMCs vis à vis their antiviral, antitumor and antioxidant capabilities.

APA, Harvard, Vancouver, ISO, and other styles

33

Wahyuni, Ningrum, Syafrudin Ilyas, and Alya Amila Fitrie. "Effect of Pleurotus Ostreatus on Pancreatic Beta Cells of Diabetes Mellitus Mice Model." JURNAL ILMU KEFARMASIAN INDONESIA 15, no. 2 (September 30, 2017): 155. http://dx.doi.org/10.35814/jifi.v15i2.507.

Full text

Abstract:

Over the last 30 years, the number of people suffering from diabetes mellitus has doubled globally. Adipose tissue dysfunction plays an important role in insulin resistance. Mushroom has been traditionally used to prevent diabetes. This research aims to study the anti-oxidative effect of Pleurotus ostreatus on pancreatic beta cells. This study is an experimental posttest only control group design. The subjects were 24 male wistar mice, divided into six groups. Group P0 was given distilled water and citrate buffer. Group P1 was given high fat diet (HFD) and low dose streptozotocin (STZ). Group P2 and 3 were given HFD and low dose STZ along with Pleurotus ostreatus ethanol extract. Group P4 and P5 were given HFD and low dose STZ, and then given Pleurotus ostreatus ethanol extract. Blood glucose levels and pancreatic beta cells area count were done after treatment. Data obtained was analyzed using one-way ANOVA test. One-way ANOVA test showed signifi cant difference in all the groups (p<0.05). Post Hoc test results showed difference in blood glucose levels and pancreatic beta cells area count. Pleurotus ostreatus ethanol extract can prevent cellular damage to murine pancreatic beta cells but unable to reverse the damage to the beta cells.

APA, Harvard, Vancouver, ISO, and other styles

34

Álvarez-Serrano, Isaris María, Daimara Mustelier-Casola, José Miguel González-Zambrano, and Leticia Espinosa-Nieto. "Potencialidades de inclusión de Pleurotus ostreatus en alimentos cárnicos." Revista Científica Arbitrada de Investigación en Comunicación, Marketing y Empresa REICOMUNICAR 5, no. 9 (January 6, 2022): 233–45. http://dx.doi.org/10.46296/rc.v5i9.0046.

Full text

Abstract:

Las setas comestibles como Pleurotus ostreatus resultan una buena opción para formulaciones cárnicas, dado su contenido de nutrientes; además, posee compuestos bioactivos que le confieren propiedades antioxidantes, antimicrobianas y anticancerígenas, principalmente. El presente trabajo valora las potencialidades del uso de Pleurotus ostreatus en productos cárnicos. El diseño de la investigación fue no experimental. El estudio sostuvo como método la observación no participativa para la recopilación de información, y como técnica al análisis documental para la obtención de datos reales y el fortalecimiento de resultados. Se afirma que la adición de hongos comestibles, específicamente de Pleurotus ostreatus en productos cárnicos mejora la calidad nutricional de estos productos, ha sido empleado de manera satisfactoria en varias formulaciones de alimentos como hamburguesas de pollo, de res, salchichas de cerdo y tipo vienesa, paté de hígado y Nuggets de pollo. Además, el cultivo del hongo en sustratos como mazorcas de cacao, orujos de pera, briquetas de bagazo de caña de azúcar ha demostrado sostenibilidad, al posibilitar resolver problemas medioambientales. En Camagüey se potencia el uso de la cascarilla de arroz dada su disponibilidad, bajo precio, cercanía de las plantas generadoras y contribución a minimizar el impacto ambiental. Palabras claves: Pleurotus ostreatus, cárnicos, nutrición, sustrato.

APA, Harvard, Vancouver, ISO, and other styles

35

Strapáč, I., and M. Baranová. "Content of Chemical Elements in Wood-Destroying Fungi." Folia Veterinaria 60, no. 4 (December 1, 2016): 29–36. http://dx.doi.org/10.1515/fv-2016-0035.

Full text

Abstract:

AbstractThe aim of this study was to examine the content of chemical elements in the dried fruiting bodies of edible wood decaying fungi such as Honey mushrooms (Armillaria mellea), Shiitakes (Lentinus edodes) and Oyster mushrooms (Pleurotus ostreatus). Powdered samples of fungi were mineralized in a microwave digestion. Twenty-one (21) chemical elements were detected in the plasma of the device ICP-MS AGILENT 7500c by accredited methods with the aid of calibration curves. The content of individual elements varied within a considerable range. The highest contents of K, Mn, Cu and Cd were found in the fruiting bodies of Honey mushrooms (Armillaria mellea). Shiitakes (Lentinus edodes) had the highest content of B and Mo. Significant differences were found in the content of elements in the Oyster mushrooms (Pleurotus ostreatus) from Slovakia, Hungary and China. The highest content of Al was found in the Oyster mushrooms (Pleurotus ostreatus) from Hungary. The Chinese oysters had a maximum contents of Ca, Mg, Co, Pb, As and U. The Oyster mushrooms (Pleurotus ostreatus) from Lemešany (Slovakia) had the highest contents of Na, Zn, Fe, Se, Ag, Hg and Cr. The difference of chemical element content could be influenced by the genotype of the fungus and by the composition of substrate on which mushroom grow up.

APA, Harvard, Vancouver, ISO, and other styles

36

Ahmed El-Imam, A., P. Akoh, S. Saliman, and E. Ighalo. "Mushroom-mediated delignification of agricultural wastes for bio-ethanol production." Nigerian Journal of Biotechnology 38, no. 1 (July 28, 2021): 137–45. http://dx.doi.org/10.4314/njb.v38i1.16.

Full text

Abstract:

Biological pretreatment is a cost-effective method of delignifying lignocellulosic biomass, making it less recalcitrant to hydrolysis into fermentable sugars. In this study, selected agricultural wastes were pretreated with mushrooms (Lentinus squarrosulus and Pleurotus ostreatus) to delignify them for bioethanol production. The substrates were supplemented with 0.2 % CaCO3, inoculated with 12 % (w/w) L. squarrosulus and Pleurotus ostreatus spawns and incubated at 25 oC for 21 days. The highest lignin removal and highest bioethanol yield of 77.45 % and 13.98 % were obtained from bean husks pretreated with L. squarrosulus. Similarly, 64.29 % and 60.92 % lignin were removed from the Pleurotus ostreatus-pretreated banana leaves and sawdust, respectively, while 12.08 % and 13.05 % bio-ethanol yields were recorded, respectively. These findings demonstrate that affordable and straightforward mushroom delignification of abundant and cheap biomass can improve hydrolysis outcomes, thus easing bioethanol production.

APA, Harvard, Vancouver, ISO, and other styles

37

Morán Arellanos, Teófilo, Jaime Bautista Ortega, Mercedes Sobal Cruz, Verónica Rosales Martínez, Bernardino Candelaria Martínez, and Zulema Guadalupe Huicab Pech. "Potencial biotecnológico de residuos vegetales para producir Pleurotus ostreatus en zonas rurales de Campeche." Revista Mexicana de Ciencias Agrícolas 11, no. 3 (May 12, 2020): 685–93. http://dx.doi.org/10.29312/remexca.v11i3.1925.

Full text

Abstract:

El objetivo de este estudio fue identificar los principales residuos vegetales disponibles en sistemas agrícolas de pequeños productores y utilizarlos como sustratos para el cultivo de dos cepas de Pleurotus ostreatus (CP 50 y CP 753) en condiciones de laboratorio. Se aplicaron 184 cuestionarios en 13 comunidades rurales Campeche, México. Se evaluó la disponibilidad de los residuos agrícolas (t MS ha-1) en cultivos de maíz, calabaza chihua, frijol x-pelón y especies arbóreas. La selección de los residuos vegetales se evaluó en el cultivo de cepas de Pleurotus ostreatus. Las variables evaluadas en el cultivo de pleurotos fueron: colonización del sustrato, aparición de primordios, eficiencia biológica, tasa de colonización y tasa de producción. Los resultados se analizaron con estadística descriptiva y un diseño experimental de bloques al azar. La disponibilidad (t MS ha-1) de los residuos vegetales fue maíz (10.7), calabaza chihua (14) y frijol x-pelón (17.36). La CP-753 en rastrojo de frijol presentó los tiempos más cortos con 12 y 15 días en colonización y aparición de primordios, mientras que la CP-50 inoculada en fruta de pixoi fue la menos eficiente. El sustrato rastrojo de frijol inoculado con la cepa CP-753 presentó la mejor eficiencia biológica con valores de 102.75 ±7.48 y una tasa de producción de 5.13 g día-1. La mayoría de los productores encuestados tienen interés en utilizar los residuos vegetales que se generan en los solares o traspatios como alternativas productivas utilizando estrategias agroecológicas que aporten a la generación de ingresos económicos durante gran parte del año.

APA, Harvard, Vancouver, ISO, and other styles

38

Martínez-Berra, Caolina, Rúben Díaz, Lilia Sánchez-Minutti, and Gerardo Díaz-Godínez. "Biodegradación de colorantes azo por Pleurotus ostreatus." Mexican Journal of Biotechnology 3, no. 1 (January 1, 2018): 43–59. http://dx.doi.org/10.29267/mxjb.2018.3.1.43.

Full text

Abstract:

La presencia de colorantes azo en aguas residuales provenientes de industrias textiles representa una de las principales fuentes de contaminación en el medio ambiente. Se han empleado métodos fisicoquímicos para la eliminación de estos compuestos, sin embargo, en la actualidad no existe un método que garantice la eliminación total de los colorantes y el problema de contaminación continua presente. Estudios realizados proponen el uso de Pleurotus ostreatus como una alternativa biológica para la degradación de colorantes azo.

APA, Harvard, Vancouver, ISO, and other styles

39

RIBEIRO, Maria Ν. S., and Izonete de J. A. AGUIAR. "HYMENOMYCETES DETERIORADORES DE MADEIRA EM SERRARIAS DE MANAUS, AM, BRASIL." Acta Amazonica 23, no. 2-3 (1993): 219–25. http://dx.doi.org/10.1590/1809-43921993233225.

Full text

Abstract:

Do levantamento realizado com fungos (Hymenomycetes) deterioradores de madeiras em serrarias de Manaus foram encontradas as seguintes espécies: Coriolopsis occidentalis, Pleurotus ostreatus, Pycnoporus sanguineus e Schizophyllum commune. Pleurotus ostreatus foi assinalada com maior freqüência. As seis espécies de madeiras examinadas Ceiba pentandra(sumaúma), Copaifera multijuga (copaiba), Hura crepitans (assacu), Maquira coriacea (muiratinga), Pseudobombax munguba (munguba) e Virola surinamensis (virola) tiveram suas cascas e alburnos atacados. Hura crepitans foi a que apresentou maior incidência de fungos.

APA, Harvard, Vancouver, ISO, and other styles

40

Rahimah, Santun Bhekti, Dhiah Dianawaty Djunaedi, Arto Yuwono Soeroto, and Tatang Bisri. "The The Phytochemical Screening, Total Phenolic Contents and Antioxidant Activities in Vitro of White Oyster Mushroom (Pleurotus Ostreatus) Preparations." Open Access Macedonian Journal of Medical Sciences 7, no. 15 (June 30, 2019): 2404–12. http://dx.doi.org/10.3889/oamjms.2019.741.

Full text

Abstract:

BACKGROUND: The popular commercially cultivated Pleurotus ostreatus mushroom contains very high nutrients and bioactive compounds with high antioxidant activity. The ethanolic extract seems to be the most active in preparation. AIM: This study has an aim to compare the phytochemical analysis of a fresh, dry and ethanolic extract of Pleurotus ostreatus, to measure the total phenolic content and antioxidant activities in vitro of ethanolic extracts of Pleurotus ostreatus. METHODS: The fresh plant's materials (FPM), dry plants materials (DPM), ethanolic extracts were macerated with 70% (EE70) and 96% ethanol (EE96) of Pleurotus ostreatus which were used for phytochemical analysis, and EE96 was used for antioxidant activity in vitro. The phytochemical analysis was conducted using the Dragendorf and Meyer, FeCl3 test, Salkowsky method, Lieberman method, amyl alcohol, foam test and the NaOH reagent. The total phenol test was carried out using the Follin-Ciocalteu method. The antioxidant activity was tested using the ABTS and H2O2 essay. RESULTS: The phytochemical screening showed that the flavonoid, phenolic compounds, tannin, saponin, alkaloids, and steroids were detected in the FPM, DPM, EE70 and also the EE96. The alkaloid, however, was not identified by the Meyer Reagent in the FPM and DPM. The DPM and EE70 seemed to have the highest amount of saponin based on the foam that was formed. Meanwhile, steroids and flavonoids were detected at a higher level in the EE96, based on the strength of visible colour. However, triterpenoid and quinones could not be identified. In the total phenol test, there was an amount of 6.67 μg phenol in a 1 mg extract sample which was equivalent to 1 mg of Gallic Acid. The EE96 has an IC50 of 108.07 μg/mL for ABTS and an IC50 reduction of 229.17 μg/mL. The process of Pleurotus ostreatus drying did not reduce the content of active substances. The polar active substances seem to be more soluble in the EE70 than the EE96. CONCLUSION: The higher the bioactive substances in the preparation, the more significant the bio-therapeutic effects. Ethanolic extract of Pleurotus ostreatus has a phenol content and a good antioxidant action.

APA, Harvard, Vancouver, ISO, and other styles

41

Beltrán Delgado, Yaixa, Humberto Joaquin Morris Quevedo, Daliannis Oliva Dominguez, Pedro Batista Corbal, and Gabriel Llaurado Maury. "COMPOSICIÓN MICOQUÍMICA Y ACTIVIDAD ANTIOXIDANTE DE LA SETA Pleurotus ostreatus EN DIFERENTES ESTADOS DE CRECIMIENTO." Acta Biológica Colombiana 26, no. 1 (December 24, 2020): 89–98. http://dx.doi.org/10.15446/abc.v26n1.84519.

Full text

Abstract:

Pleurotussp. es un género de basidiomicetos ampliamente distribuido a nivel mundial, con especies que revisten importancia, no solo desde el punto de vista comercial por su valor nutricional, sino también por sus propiedades medicinales. Sin embargo, aún son insuficientes los estudios micoquímicos y se desconoce su relación con las propiedades antioxidantes de bioproductos obtenidos de estas setas durante diferentes estados de crecimiento. En el presente trabajo, se determinó el contenido de proteínas, carbohidratos, azúcares reductores, fenoles totales y flavonoides, así como la actividad antioxidante in vitro(ensayos de captación de radicales DPPH y estimación del poder reductor) de extractos acuosos de Pleurotus ostreatusen dos estados de crecimiento (primordios y cuerpos fructíferos maduros) durante la fermentación sólida. El contenido de proteínas, azúcares reductores y flavonoides fue superior en el extracto acuoso de cuerpos fructíferos maduros, mientras que los carbohidratos y fenoles totales fueron mayores en el extracto de primordios. Los valores de EC50en los ensayos de DPPH y los de poder reductor fueron de 1,72 mg/mL y 3,27 mg/mL para el extracto de primordios y de 0,44 mg/mL y 0,48 mg/mL para el de cuerpos fructíferos maduros, respectivamente. Los resultados sugieren que las propiedades antioxidantes de extractos acuosos de Pleurotus ostreatus(primordios y cuerpos fructíferos maduros) reflejan las variaciones en la concentración de moléculas bioactivas, teniendo en cuenta las particularidades fisiológicas de las fases de crecimiento. Ello podría resultar de utilidad para el diseño de protocolos de obtención de bioproductos de Pleurotus ostreatuscon aplicaciones potenciales como antioxidantes en las industrias alimentaria y farmacéutica.

APA, Harvard, Vancouver, ISO, and other styles

42

E. G, Mbassi Josiane, Mobou Estelle Y, Ngome Francis A, and Sado Kamdem S. L. "Effect of Substrates on Nutritional Composition and Functional Properties of Pleurotus Ostreatus." Current Research in Agricultural Sciences 5, no. 1 (May 31, 2018): 15–22. http://dx.doi.org/10.18488/journal.68.2018.51.15.22.

Full text

Abstract:

Pleurotus species, commonly known as oyster mushrooms, are edible fungi cultivated worldwide. Pleurotus genus is one of most extensively studied white-rot fungi due to its exceptional ligninolytic properties. These mushrooms have the ability to colonize and degrade a wide variety of lingo-cellulosic wastes with relatively short cycle. The objective of this study was to review published research works on the effect of substrates on nutritional composition and functional property of Pleurotus ostreatus. A literature search was done on the internet and university libraries in this area. It was found that different substrates used in cultivating mushrooms do have effect on the functional, organoleptic and nutritional properties of mushrooms. This review presents a practical checklist of effect of substrates on quality of Pleurotus ostreatus that may help different users.

APA, Harvard, Vancouver, ISO, and other styles

43

Choudhury, MBK, T. Rahman, AJ Kakon, N. Hoque, M. Akhtaruzzaman, MM Begum, MSK Choudhuri, and MS Hossain. "Effects of Pleurotus ostreatus on Blood Pressure and Glycemic Status of Hypertensive Diabetic Male Volunteers." Bangladesh Journal of Medical Biochemistry 6, no. 1 (January 13, 2013): 5–10. http://dx.doi.org/10.3329/bjmb.v6i1.13280.

Full text

Abstract:

Different species of mushrooms are being used increasingly for their nutritional and medicinal values. They are used in traditional medical practice in the treatment and prevention of diabetes, obesity, heart diesaes, hyperacidity, cancer and hypertension. This study was designed to see the effects of Pleurotus ostreatus on blood pressure and glycemic status of hypertensive diabetic male volunteers. The study was carried out in the National Mushroom development and Extension Center (NAMDEC) laboratory, Savar, Dhaka in collaboration with the Department of Pharmacy along with the Department of Biochemistry and Molecular Biology, Jahangirnagar University. A total of 27 hypertensive male volunteers suffering from type 2 diabetes mellitus with age range of 32 to 68 years, who were free from renal impairment and other known acute or chronic diseases were included in the study. Blood pressure, fasting plasma glucose, HbA1c and serum creatinine were measured before and after 3 months of regular intake of 3 grams mushroom powder capsule daily in in 3 divided doses. However they were allowed to continue the drugs they were taking already. The study showed that after 3 months of regular intake of Pleurotus ostreatus mushroom, both systolic and diastolic blood pressure decreased significantly (p<0.001). It was also observed that, Pleurotus ostreatus decreased fasting plasma glucose level significantly (p<0.001). Reduction of HbA1c % observed after 3 months of mushroom intake was found to be significant (p<0.001). But there was no significant change of plasma creatinine level (p>0.05) indicating Pleurotus ostreatus has no detrimental effect on renal system. From the study, it can be said that, Pleurotus ostreatus mushroom intake improves glycemic status and blood pressure control in diabetic hypertensive subjects. DOI: http://dx.doi.org/10.3329/bjmb.v6i1.13280 Bangladesh J Med Biochem 2013; 6(1): 5-10

APA, Harvard, Vancouver, ISO, and other styles

44

Yanti, G., N. Jamarun, R. Pazla, and R. W. W. Sari. "Biodelignification of sugarcane shoots: agricultural waste management strategy as an alternative feed for ruminants." IOP Conference Series: Earth and Environmental Science 888, no. 1 (November 1, 2021): 012078. http://dx.doi.org/10.1088/1755-1315/888/1/012078.

Full text

Abstract:

Abstract This research aimed to reduce the lignin content and increase the nutrients content of sugarcane shoots as forages for a ruminant. This research used an experimental method using a completely randomized design (CRD) in factorial patterns, whereas A factor was a type of fungi (Pleurotus ostreatus and Aspergillus oryzae), and B factor was biodelignification time (14. 21 and 28 days). The variables observed in the experiment were laccase enzyme activity, Crude Protein (CP) content, and the percentage of lignin decreased. The research results showed that biodelignification using Pleurotus ostreatus fungi for 28 days resulted: 1,62 U/ml of laccase enzyme activity, 9.23% crude protein content, and 12.83 % of lignin decreased. From this research, the best treatment for bio-delignification of sugarcane shoots was with Pleurotus ostreatus fungi for 28 days, producing the best sugarcane shoots with 9.23 % of crude protein 12.83% of lignin decreased.

APA, Harvard, Vancouver, ISO, and other styles

45

Song, Qian, Xun Deng, and Rui-Qing Song. "Expression of Pleurotus ostreatus Laccase Gene in Pichia pastoris and Its Degradation of Corn Stover Lignin." Microorganisms 8, no. 4 (April 21, 2020): 601. http://dx.doi.org/10.3390/microorganisms8040601.

Full text

Abstract:

Pleurotus ostreatus is a species of white-rot fungi that effectively degrades lignin. In this study, we aimed to efficiently express the lac-2 gene of Pleurotus ostreatus in the Pichia pastoris X33 yeast strain. The enzymatic properties of recombinant yeast were determined, and its ability to degrade corn stover lignin was determined. The results showed the optimum pH values of recombinant laccase for 2,2’-Azinobis-3-ethylbenzothiazoline-6-sulfonic acid, 2,6-dimethoxyphenol, and 2-methoxyphenol were 3.0, 3.0, and 3.5, respectively. The optimum reaction temperature was 50 °C, and it had good thermal stability and acid and alkali resistance. The degradation rate of lignin in corn stover by recombinant laccase was 18.36%, and the native Pleurotus ostreatus degradation rate was 14.05%, the difference between them is significant (p < 0.05). This experiment lays a foundation for the study of the degradation mechanism of lignin by laccase.

APA, Harvard, Vancouver, ISO, and other styles

46

Doi, Suely Mayumi Obara, Eliane Saori Otaguiri, and Aline Francisca De Souza. "Biodegradação de Corantes e Efluente da Indústria Têxtil por Pleurotus ostreatus e Pycnoporus spp / Biodegradation of Textile Industry Effluent and Dyes by Pleurotus ostreatus and Pycnoporus spp." Brazilian Journal of Animal and Environmental Research 4, no. 3 (July 22, 2021): 3226–33. http://dx.doi.org/10.34188/bjaerv4n3-034.

Full text

Abstract:

As indústrias têxteis e de alimentos são responsáveis pela liberação de efluentes corados ao meio ambiente, que podem ser tóxicos ou cancerígenos . A biodegradação por diferentes microrganismos constitui uma alternativa menos agressiva ao meio ambiente e economicamente viável, envolvendo enzimas ligninolíticas como as lacases. Este trabalho objetivou a comparação entre o Pleurotus ostreatus e o Pycnoporus spp na descoloração de efluentes e corantes têxteis e determinar suas atividades de lacase. Os experimentos foram realizados em meios líquidos de Vogel suplementados com glucose, extrato de levedura e efluente corado, incubados a 28°C e 180 rpm de agitação até se observar a descoloração. Os resultados demonstraram uma descoloração de 87,97% do Remazol Brilliant Orange pelo Pleurotus ostreatus contra 35,60% pelo Pycnoporus, 63,88% do Remazol Preto Intenso contra 43,93%, em relação ao efluente obteve-se 68,53% de descoloração contra 70,69%, respectivamente. Indicando uma melhor performance dos tratamentos com o Pleurotus ostreatus.

APA, Harvard, Vancouver, ISO, and other styles

47

Suciyanti, Henny, Endang Sulistyowati, and Yosi Fenita. "Evaluasi Nutrisi Limbah Kulit Durian (Durio zibethinus) yang Difermentasi Jamur Tiram Putih (Pleurotus ostreatus) pada Masa Inkubasi yang Berbeda." Jurnal Sain Peternakan Indonesia 10, no. 2 (April 15, 2016): 77–86. http://dx.doi.org/10.31186/jspi.id.10.2.77-86.

Full text

Abstract:

Penelitian ini bertujuan untuk mengetahui kandungan nutrisi limbah kulit durian yang telah difermentasi menggunakan jamur tiram putih (Pleurotus ostreatus) pada masa inkubasi yang berbeda. Limbah kulit durian (LKD) yang difermentasi ini diduga dapat meningkatkan nilai nutrisi dan menurunkan kandungan serat kasar di dalam LKD. Fermentasi LKD menggunakan Pleurotus ostreatus dilakukan selama 2, 4, 6, dan 8 minggu. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 4 ulangan. Masing-masing perlakuan yaitu P0 (Perlakuan kontrol tanpa dilakukan proses fermentasi), P1 (fermentasi pada masa inkubasi 2 minggu), P2 (fermentasi pada masa inkubasi 4 minggu), P3 (fermentasi pada masa inkubasi 6 minggu), dan P4 (fermentasi pada masa inkubasi 8 minggu). Variabel yang diukur meliputi kadar air, bahan kering, abu, bahan organik, lemak kasar, protein kasar, serat kasar dan bahan ekstrak tanpa nitrogen. Hasil analisis ragam menunjukkan bahwa LKD yang difermentasi pada masa inkubasi yang berbeda berpengaruh sangat sangat nyata (P<0,001) terhadap kadar air, bahan kering, bahan organik, dan lemak kasar. Berpengaruh nyata (P<0,05) terhadap protein kasar dan serat kasar, serta berpengaruh tidak nyata (P>0,05) terhadap kadar abu dan bahan ekstrak tanpa nitrogen. Hasil penelitian menunjukkan bahwa LKD yang difermentasi dengan jamur tiram putih (Pleurotus ostreatus) pada masa inkubasi 8 minggu dapat meningkatkan protein kasar, dan kadar abu, serta menurunkan kadar lemak kasar.Kata Kunci : limbah kulit Durian, Pleurotus ostreatus, masa inkubasi, nutrisi ruminan

APA, Harvard, Vancouver, ISO, and other styles

48

Hartono, Rudi, Yosi Fenita, and Endang Sulistyowati. "Uji In Vitro Kecernaan Bahan Kering, BahanOrganik dan Produksi N-NH3 pada Kulit Buah Durian (Durio zibethinus) yang Difermentasi Jamur Tiram Putih (Pleurotus ostreatus) dengan Perbedaan Waktu Inkubasi." Jurnal Sain Peternakan Indonesia 10, no. 2 (April 21, 2016): 87–94. http://dx.doi.org/10.31186/jspi.id.10.2.87-94.

Full text

Abstract:

Penelitian ini bertujuan untuk mengevaluasi kecernaan Bahan Kering (KCBK), Bahan Organik (KCBO) dan Produksi N-NH3 pada Kulit Buah Durian yang Difermentasi dengan Jamur Tiram Putih (Pleurotus ostreatus) secara in vitro. Penelitian ini dilaksanakan dalam dua tahap. Tahap pertama yaitu proses fermentasi limbah kulit durian dengan menggunakan Pleurotus ostreatus selama 2, 4, 6, dan 8 minggu. Tahap kedua yaitu analisis kecernaan in vitro. Perlakuan penelitian menggunakan 5 perlakuan dengan 4 ulangan dengan menggunakan rancangan penelitian Rancangan Acak Lengkap (RAL).Perlakuan adalahP0 = Kulit Durian Tanpa Fermentasi, P1 = Kulit Durian dengan Fermentasi 2 minggu, P2 = Kulit Durian dengan Fermentasi 4 minggu, P3 = Kulit Durian dengan Fermentasi 6 minggu, P4 = Kulit Durian dengan Fermentasi 8 minggu. Variabel yang diukur meliputi kecernaan bahan kering, kecernaan bahan organik, dan produksi N-NH3 (amonia). Hasil analisis sidik ragam (ANOVA) menunjukkan bahwa limbah kulit durian yang difermentasi dengan Pleurotus ostreatus pada masa inkubasi yang berbeda berpengaruh sangat nyata (P<0,01) terhadap kecernaan bahan organik, berpengaruh tidak nyata (P>0,05) terhadap Kecernaan bahan kering, serta berpengaruh tidak nyata (P>0,05) terhadap produksi N-NH3. Hasil penelitian disimpulkan bahwakulit durian yang difermentasi dengan jamur tiram putih (Pleurotus ostreatus) (KDF) mampu meningkatkan nilai kecernaan bahan organik bekisar antara 39,07 % – 52,43 %.Kata Kunci : jamur tiram putih , kulit Durian fermentasi, kecernaan, KCBK, KCBO dan N-NH3.

APA, Harvard, Vancouver, ISO, and other styles

49

Coello-Loor, Carol Daniela, Juan Humberto Avellaneda-Cevallos, Alexandra Elizabeth Barrera-Álvarez, Mayra Mercedes Peña-Galeas, Piedad Francisca Yépez Macías, and Elizabeth Ruth Racines-Macías. "Evaluación del crecimiento y producción de biomasa de dos cepas del género Pleurotus spp., cultivadas en un medio agar con diferentes sustratos." Ciencia y Tecnología 10, no. 2 (December 31, 2017): 33–39. http://dx.doi.org/10.18779/cyt.v10i2.164.

Full text

Abstract:

La velocidad de crecimiento radial (VCR) (mm.h-1) y la producción de biomasa (PB) (g.g-1 de sustrato seco) son técnicas que puedan establecer el grado de adaptación y desarrollo de los hongos del género Pleurotus spp., a distintos sustratos que podrían emplearse en una fermentación en medio sólido. Las especies fueron Pleurotus sapidus (Ps) y Pleurotus ostreatus IE8 (Po). El medio de cultivo sintético empleado fue el papa dextrosa agar (PDA), con un pH que va de 5.6 a 5.9, ideal para el crecimiento de hongos, tiene todos los componentes nutritivos, y ligera acidez que logran la inhibición del desarrollo de bacterias; diluido en 4 diferentes soluciones preparadas con los materiales residuales (solución cascarilla de arroz CaPDA, solución cáscara de maracuyá CmPDA, solución mezcla 50% Cascarilla de arroz+50% Cáscara de maracuyá CaCmPDA y agua destilada+PDA) con el propósito de observar el crecimiento radial cada 24 horas y la producción de biomasa fúngica de estos hongos lignocelulósicos por su periodo de incubación y la adaptación a nivel in vitro. Los tratamientos que presentaron mejor comportamiento VCR fueron el PoCaPDA (0.569) y el PoCaCmPDA (0.549); la cepa que reporto valores más altos en VCR y PB fue el Pleurotus ostreatus y el mejor medio de cultivo fue el CaPDA, en ambas variables; mientras, la mayor producción de biomasa fue en Pleurotus sapidus en CaPDA (0.1727) y el Pleurotus ostreatus IE8 en CmPDA (0.1722), CaPDA (0.1706) y PDA (0.1694).

APA, Harvard, Vancouver, ISO, and other styles

50

Coello-Loor, Carol Daniela, Juan Humberto Avellaneda-Cevallos, Alexandra Elizabeth Barrera-Álvarez, Mayra Mercedes Peña-Galeas, Piedad Francisca Yépez Macías, and Elizabeth Ruth Racines-Macías. "Evaluación del crecimiento y producción de biomasa de dos cepas del género Pleurotus spp., cultivadas en un medio agar con diferentes sustratos." Ciencia y Tecnología 10, no. 2 (December 1, 2017): 33–39. http://dx.doi.org/10.18779/cyt.v10i2.205.

Full text

Abstract:

La velocidad de crecimiento radial (VCR) (mm.h-1) y la producción de biomasa (PB) (g.g-1 de sustrato seco) son técnicas que puedan establecer el grado de adaptación y desarrollo de los hongos del género Pleurotus spp., a distintos sustratos que podrían emplearse en una fermentación en medio sólido. Las especies fueron Pleurotus sapidus (Ps) y Pleurotus ostreatus IE8 (Po). El medio de cultivo sintético empleado fue el papa dextrosa agar (PDA), con un pH que va de 5.6 a 5.9, ideal para el crecimiento de hongos, tiene todos los componentes nutritivos, y ligera acidez que logran la inhibición del desarrollo de bacterias; diluido en 4 diferentes soluciones preparadas con los materiales residuales (solución cascarilla de arroz CaPDA, solución cáscara de maracuyá CmPDA, solución mezcla 50% Cascarilla de arroz+50% Cáscara de maracuyá CaCmPDA y agua destilada+PDA) con el propósito de observar el crecimiento radial cada 24 horas y la producción de biomasa fúngica de estos hongos lignocelulósicos por su periodo de incubación y la adaptación a nivel in vitro. Los tratamientos que presentaron mejor comportamiento VCR fueron el PoCaPDA (0.569) y el PoCaCmPDA (0.549); la cepa que reporto valores más altos en VCR y PB fue el Pleurotus ostreatus y el mejor medio de cultivo fue el CaPDA, en ambas variables; mientras, la mayor producción de biomasa fue en Pleurotus sapidus en CaPDA (0.1727) y el Pleurotus ostreatus IE8 en CmPDA (0.1722), CaPDA (0.1706) y PDA (0.1694).

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Pleurotus ostreatu'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles