Relevant bibliographies by topics / Solvents extracts

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Solvents extracts'

Author: Grafiati
Published: 29 March 2023

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Journal articles on the topic "Solvents extracts"

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Kuznetsov, P. N., Z. R. Ismagilov, L. I. Kuznetsova, B. Avid, X. Fan, and Е. S. Mihkailova. "The Composition and Properties of Soluble Products from the Coal ThermoSolvolysis with Hydrocarbon Residues and Blends as Solvents." Eurasian Chemico-Technological Journal 24, no. 3 (2022): 183–90. http://dx.doi.org/10.18321/ectj1431.

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The dissolution of bituminous coal at mild temperature was studied using a variety of commercially available coal- and petroleum-derived hydrocarbon fractions, hydrorefined derivatives and blends as solvents. The chemical and molecular composition of the coal, solvents and extracts were characterized by chemical and group analyses, and by IRFT, 1H NMR, GC-MS and liquid chromatography. Low volatile solvents like highly aromatic coal tar (CT), its anthracene fraction (AFCT), petroleum-derived solvent (HGOCC) and binary blends were found to exhibit high performance for coal dissolution into quino
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Zakaria, F., B. A. Talip, E. E. M. Kahar, N. Muhammad, N. Abdullah, and H. Basri. "Solvent used in extraction process of agarwood: a systematic review." Food Research 4, no. 3 (2020): 731–37. http://dx.doi.org/10.26656/fr.2017.4(3).333.

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The method of extraction of Agarwood is usually dependent on the purpose of the extract. This systematic review aims to look at the number of studies that use different types of solvents in the process of extraction. There are 3 types of solvents commonly used in the extraction of agarwood essential oils namely methanol, ethanol and water. Each solvent produces different extracts in terms of quantity and quality of the final product. However, there is controversy over the use of solvents as it may cause a cytotoxic effect on the user. Another common type of solvent is water. Although water is
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Schuster, Anja, Nina Ortmayr, Gertie Janneke Oostingh, and Bettina Stelzhammer. "Compounds extracted from larch, birch bark, Douglas fir, and alder woods with four different solvents: Effects on five skin-related microbes." BioResources 15, no. 2 (2020): 3368–81. http://dx.doi.org/10.15376/biores.15.2.3368-3381.

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Wood is an important natural resource, and the extracts of specific wood species might have growth-inhibiting effects on certain microbes. This property can be used in the pharmaceutical industry to develop phytochemical-based medicine to treat skin infections. Thus far, methanol, intrinsically toxic, has been the main solvent used for extraction of soluble wood compounds. In this study, the focus was placed on biocompatible solvents, including dimethyl sulfoxide, distilled water, and glycerin, in addition to methanol used to extract compounds from larch, birch bark, Douglas fir, and alder woo
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Geetha, Sethupandian, Kokkaiah Irulandi, and Palanichamy Mehalingam. "EVALUATION OF ANTIOXIDANT AND FREE RADICAL SCAVENGING ACTIVITIES OF DIFFERENT SOLVENT EXTRACTS OF LEAVES OF PIPER UMBELLATUM." Asian Journal of Pharmaceutical and Clinical Research 10, no. 2 (2017): 274. http://dx.doi.org/10.22159/ajpcr.2017.v10i2.15570.

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Objective: This study was designed to determine the Total phenol, flavonoid content, antioxidant and free radical scavenging properties of different solvent extracts of Piper umbellatum. Methods: Different solvent extracts evaluated with DPPH radical scavenging activity and Reducing power activity.Results: The presence of phenol and flavonoid showed highly in the methanol extracts than ethyl acetate and acetone extracts. All the extracts have various level of antioxidant activity. Methanol solvent extract have good extraction and show significant antioxidant activity. The effect of reducing po
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Karunakaran, Thiruventhan, Yong Sean Goh, Rameshkumar Santhanam, Vikneswaran Murugaiyah, Mohamad Hafizi Abu Bakar, and Surash Ramanathan. "RP-HPLC-DAD Analysis of Mitragynine Content in Mitragyna speciosa Korth. (Ketum) Leaf Extracts Prepared Using Ultrasound Assisted Extraction Technique and Their Cytotoxicity." Separations 9, no. 11 (2022): 345. http://dx.doi.org/10.3390/separations9110345.

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Mitragynine and its congeners are one of the major phytoconstituents present in Mitragyna speciosa Korth. (ketum) leaves and a well-known factor that contributes to ketum’s pharmacological activities. This study describes the usage of a green extraction method to yield botanical leaf extracts of ketum. The leaf extracts were assessed for mitragynine content, total phenolic and flavonoid content, and cytotoxicities. The Ultrasound Assisted Extraction (UAE) method showed a varying dry yield of the extracts (0.22–1.92 g) that were obtained with solvents of variable polarities. However, the mitrag
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Mokhtar, Siti Umairah. "Comparison of total phenolic and flavonoids contents in Malaysian propolis extract with two different extraction solvents." International Journal of Engineering Technology and Sciences 6, no. 2 (2019): 1–11. http://dx.doi.org/10.15282/ijets.v6i2.2577.

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This study is aimed to prepare propolis extracts by using two different solvents which are ethanol and water via maceration method and to evaluate the total phenolic and flavonoid components of the extract. Optimization of the extraction process was done by using different solvents and sample-to-solvent ratio. The ethanolic and water extracts were analysed for the determination of Total Phenolic Content (TPC) and Total Flavonoid Content (TFC) by using Folin-Ciocalteu colorimetric method and Aluminimum chloride method, respectively. Based on sample-to-solvent ratio, it showed that 1:10 gave the
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Tzani, Andromachi, Ioanna Pitterou, Foteini Divani, et al. "Green Extraction of Greek Propolis Using Natural Deep Eutectic Solvents (NADES) and Incorporation of the NADES-Extracts in Cosmetic Formulation." Sustainable Chemistry 4, no. 1 (2022): 8–25. http://dx.doi.org/10.3390/suschem4010002.

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In this work, a greener approach for the extraction of Greek propolis using ultrasound-assisted extraction method in combination with Natural Deep Eutectic Solvents (NADES) is presented. Propolis is a natural material of outmost interest as it possesses various biological and pharmacological activities and is therefore used for the manufacturing of extracts useful to various fields, such as pharmaceutics, cosmetics etc. Herein, five NADES were task-specifically selected as appropriate extraction solvents since they provide important assets to the final NADES-extracts, comparing to the conventi
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Udaya Prakash N K, Sriraman V, Devika V, et al. "Comparative studies on phytochemistry, antioxidant and antibacterial activity of direct and sequential extracts of chromolaena odorata leaves." International Journal of Research in Pharmaceutical Sciences 10, no. 2 (2019): 914–21. http://dx.doi.org/10.26452/ijrps.v10i2.275.

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Phytochemistry, antioxidant and antibacterial activities of different solvent extracts of Chromolaena odorata leaves obtained by direct and sequential extraction were compared in this study. Antibacterial evaluation of the extracts was performed through a disc diffusion method. The results revealed that the solvents, Petroleum ether and Ethyl acetate showed the presence of a majority of the phytochemicals, Chloroform extract yielded maximum TPC and TAA and ethyl acetate yielded higher TFC when compared to other solvents. Ethanol and chloroform extracts showed lower concentrations of IC50 again
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Thuanthong, Arthittaya, Jaran Patchimpet, Wonnop Visessanguan, et al. "Antioxidant properties of sacha inchi (Plukenetia volubilis) shell extracts as affected by solvents used for prior decolorization." ASEAN Journal of Scientific and Technological Reports 24, no. 3 (2021): 1–8. http://dx.doi.org/10.55164/ajstr.v24i3.243570.

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Sacha inchi (Plukenetia volubilis) shell is a potential source of phenolics with an-tioxidative activity and its extract can be used to prevent lipid oxidation in some food matrices. However, the sacha inchi extract has been fully exploited due to the dark brown colour properties associated with pigments. Thus, de-colourization of sacha inchi shells before extraction using solvents could be a means to bring about the extract with a lighter colour, which could be applied in foods without constraints. The effects of different solvents used for decolour-ization in sacha inchi (Plukenetia volubili
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V. Le, Anh, Sophie E. Parks, Minh H. Nguyen, and Paul D. Roach. "Improving the Vanillin-Sulphuric Acid Method for Quantifying Total Saponins." Technologies 6, no. 3 (2018): 84. http://dx.doi.org/10.3390/technologies6030084.

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The colorimetric assay used for saponin quantification in plant extracts is subject to interference by common solvents used to extract the saponins from plant materials. Therefore, the degree of interference of ten common solvents was investigated. It was found that the presence of acetone, methanol and n-butanol in the reaction solution caused an intense darkening of the reaction solution in the absence of saponins, which likely could lead to erroneous saponin content values. Using aescin to construct standard curves with different solvents—such as water, ethanol, and methanol— also showed si
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Dissertations / Theses on the topic "Solvents extracts"

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Rix, Catherine S. "Detecting life on Mars and the life marker chip : antibody assays for detecting organic molecules in liquid extracts of Martian samples." Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/7250.

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The Life Marker Chip instrument, which has been selected to fly as part of the 2018 ExoMars rover mission payload, aims to detect up to 25 organic molecules in martian rocks and regolith, as markers of extant life, extinct life, meteoritic in-fall and spacecraft contamination. Martian samples will be extracted with a solvent and the resulting liquid extracts will be analysed using multiplexed microarray-format immunoassays. The LMC is under development by an international consortium led by the University of Leicester and the work described within this thesis was carried out at Cranfield Univer
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Palu, Doreen. "Etude de la composition chimique d’extraits d’Ilex aquifolium Linné et de Calicotome villosa (Poiret) Link de Corse par RMN du carbone-13." Electronic Thesis or Diss., Corte, 2022. http://www.theses.fr/2022CORT0018.

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L’objectif de ce travail de thèse était de déterminer la composition chimique d’extraits de plantes de Corse encore peu ou pas étudiées et susceptibles d’avoir des activités biologiques valorisables. Cette étude a été menée en mettant en œuvre la méthodologie d’analyse des mélanges complexes par RMN 13C, développée depuis une trentaine d’années par l’équipe « Chimie et Biomasse » de l’UMR CNRS 6134 Sciences pour l’Environnement de l’université de Corse. Dans une première partie, nous avons étudié la composition chimique d’extraits de houx commun (Ilex aquifolium L.). Deux extraits de feuilles
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Coppa, Carolina Fernanda Sengling Cebin. "Extração de oleuropeína de folhas de oliva com solvente hidroalcoólico e efeito dos extratos sobre a estabilidade oxidativa de óleos vegetais." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/74/74132/tde-01062016-114325/.

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A oleuropeína é o composto fenólico mais abundante presente nas folhas da oliveira, sendo que muitos estudos vêm demonstrando que este composto apresenta importantes propriedades antimicrobiana, antioxidante, anti-inflamatória, entre outras, surgindo o interesse em estudos de métodos para sua extração e aplicação em produtos na área alimentícia, cosmética e farmacêutica. O objetivo deste estudo foi a extração da oleuropeína à partir de folhas de oliva, utilizando solvente não tóxico, para posterior aplicação dos extratos em óleos vegetais a fim de se verificar seu efeito sobre a estabilidade o
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Tófoli, Rodolfo José [UNESP]. "Avaliação de biocompostos e composição mineral de extratos provenientes de duas macroalgas lóticas do estado de São Paulo." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150494.

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Submitted by RODOLFO JOSÉ TÓFOLI null (rodolfo_tofoli@hotmail.com) on 2017-04-27T16:00:45Z No. of bitstreams: 1 DISSERTAÇÃO VERSAO FINAL.pdf: 1411835 bytes, checksum: 522077674c28c7cf92bf9e1eaf83b999 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-05-03T14:38:01Z (GMT) No. of bitstreams: 1 tofoli_rj_me_assis.pdf: 1411835 bytes, checksum: 522077674c28c7cf92bf9e1eaf83b999 (MD5)<br>Made available in DSpace on 2017-05-03T14:38:01Z (GMT). No. of bitstreams: 1 tofoli_rj_me_assis.pdf: 1411835 bytes, checksum: 522077674c28c7cf92bf9e1eaf83b999 (MD5) Previ
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Ceschini, Valmir Carneiro. "Potencial antífungico de extratos de folhas de Eucalyptus staigeriana F. Muell. sobre Aspergillus flavus." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/11/11141/tde-22112011-135925/.

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O objetivo deste trabalho foi avaliar o potencial antifúngico contra o fungo Aspergillus flavus, dos extratos de folhas de Eucalyptus staigeriana F. Muell., preparados a partir de folhas frescas, liofilizadas e secas ao ambiente, sob diferentes tempos de extração e por diferentes solventes extratores, tais como metanol, etanol e água a temperatura ambiente e água a 60ºC. Para mensurar o potencial antifúngico foi utilizada a técnica de poisoned food em meio BDA e o crescimento radial fúngico foi avaliado por seis dias. O percentual de inibição foi avaliado comparando-se as medidas do diâmetro r
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Gomes, Anabele Stefânia. "Atividade fitotóxica de extratos foliares de Pouteria torta (Mart.) Radlk." reponame:Repositório Institucional da UnB, 2013. http://repositorio.unb.br/handle/10482/14735.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Botânica, Programa de Pós-Graduação em Botânica, 2013.<br>Submitted by Alaíde Gonçalves dos Santos (alaide@unb.br) on 2013-11-27T14:34:04Z No. of bitstreams: 1 2012_AnabeleStefaniaGomes.pdf: 1370930 bytes, checksum: 4d5d493106f69e8466f2278a7446d488 (MD5)<br>Approved for entry into archive by Guimaraes Jacqueline(jacqueline.guimaraes@bce.unb.br) on 2013-11-27T14:50:53Z (GMT) No. of bitstreams: 1 2012_AnabeleStefaniaGomes.pdf: 1370930 bytes, checksum: 4d5d493106f69e8466f2278a7446d488 (MD5)<br>Made
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Zamil, Raya. "Recycling Cathode of Lithium-Ion Battery by Using Deep Eutectic Solvents to Extract Cobalt." Thesis, Umeå universitet, Kemiska institutionen, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-173089.

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Zancan, Kelly Cristine. "Obtenção de extrato de gengibre (Zingiber officinale Roscoe) com dioxido de carbono supercritico e co-solventes : um estudo da atividade biologica dos extratos." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254874.

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Orientador: Maria Angela de Almeida Meireles<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-07-27T22:52:58Z (GMT). No. of bitstreams: 1 Zancan_KellyCristine_M.pdf: 20306324 bytes, checksum: 0ac0a2968b701e146eeda5520421ca1d (MD5) Previous issue date: 2001<br>Resumo: o gengibre e seus produtos tais como o óleo essencial e oleoresina são internacionalmente comercializados para uso nas indústrias de alimentose farmacêuticas.O óleo essencial possui os compostos mais voláteis responsáveis pelo aroma caracterís
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Veggi, Priscilla Carvalho. "Obtenção de extratos vegetais por diferentes metodos de extração : estudo experimental e simulação dos processos." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254860.

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Orientador: M. Angela de A. Meireles<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-12T23:30:07Z (GMT). No. of bitstreams: 1 Veggi_PriscillaCarvalho_M.pdf: 1761382 bytes, checksum: 637112e200f071539191361e637c14ed (MD5) Previous issue date: 2009<br>Resumo: Neste trabalho é apresentado um estudo comparativo do custo de manufatura para diferentes técnicas de extração: extração com solventes a baixa pressão (LPSE: Low Pressure Solvent Extraction) em taque agitado e percolação, e extração supercrítica (SF
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Pacetta, Cosmo Fernando. "Estudo de diferentes metodologias para a obtenção de extratos de folhas de oliveira (Olea europaea) contendo oleuropeína." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/74/74132/tde-05052014-135759/.

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A oleuropeína é o mais abundante biofenol presente nas folhas de oliveira (Olea Europaea), com importantes funções antimicrobiana e antioxidante. Estudos visando à obtenção deste composto têm sido conduzidos, porém, muitos deles utilizam solventes tóxicos e métodos caros. A presente dissertação teve por objetivo estudar diferentes metodologias para a obtenção de extratos de folhas de oliva contendo quantidades significativas de oleuropeína. Os extratos foram obtidos a partir de folhas de oliva micronizadas, com ou sem pré-tratamento para redução do teor de clorofila, submetidas a contatos simp
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Books on the topic "Solvents extracts"

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Butz, Martin V., and Esther F. Kutter. Primary Visual Perception from the Bottom Up. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780198739692.003.0008.

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This chapter addresses primary visual perception, detailing how visual information comes about and, as a consequence, which visual properties provide particularly useful information about the environment. The brain extracts this information systematically, and also separates redundant and complementary visual information aspects to improve the effectiveness of visual processing. Computationally, image smoothing, edge detectors, and motion detectors must be at work. These need to be applied in a convolutional manner over the fixated area, which are computations that are predestined to be solved
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Golshekan, Hamid Reza. The kinetics of the extraction of cobalt in a growing drop cell: Organophosphorus acids in growing solvent drops are used to extract cobalt from aqueous phases. A mathematical model describesvariation of extraction rate with concentration, pH and acid type. 1986.

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Book chapters on the topic "Solvents extracts"

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Sun, Yingying, Jing Zhang, Shenzhen Xu, Wenhao Li, and Changhai Wang. "Growth Inhibition of Karenia mikimitoi by Extracts from Gracilaria lemaneiformis Using Five Solvents." In Advances in Intelligent and Soft Computing. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27537-1_26.

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Manyim, S., A. K. Kiprop, J. I. Mwasiagi, and A. C. Mecha. "Dyeing characteristics of different solvent extracts of Euclea divinorum on cotton fabric." In Advances in Phytochemistry, Textile and Renewable Energy Research for Industrial Growth. CRC Press, 2022. http://dx.doi.org/10.1201/9781003221968-18.

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Bryant, Randal E., Armin Biere, and Marijn J. H. Heule. "Clausal Proofs for Pseudo-Boolean Reasoning." In Tools and Algorithms for the Construction and Analysis of Systems. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99524-9_25.

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AbstractWhen augmented with a Pseudo-Boolean (PB) solver, a Boolean satisfiability (SAT) solver can apply apply powerful reasoning methods to determine when a set of parity or cardinality constraints, extracted from the clauses of the input formula, has no solution. By converting the intermediate constraints generated by the PB solver into ordered binary decision diagrams (BDDs), a proof-generating, BDD-based SAT solver can then produce a clausal proof that the input formula is unsatisfiable. Working together, the two solvers can generate proofs of unsatisfiability for problems that are intractable for other proof-generating SAT solvers. The PB solver can, at times, detect that the proof can exploit modular arithmetic to give smaller BDD representations and therefore shorter proofs.
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Doe, P., C. A. Danquah, K. A. Ohemeng, et al. "Acute and Sub-acute Toxicity Studies of Solvent Extracts of Crinum pedunculatum Bulbs R.Br." In Sustainable Education and Development – Sustainable Industrialization and Innovation. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25998-2_59.

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Macaev, Fliur Z. "Green Chemistry Protocols: Specific Ionic Liquids as Recyclable Reagents, Catalysts, Solvents and Extractors." In Environmental Security Assessment and Management of Obsolete Pesticides in Southeast Europe. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6461-3_25.

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Yusof, Rizana, Siti Zawani Ahmad Zaini, and Mohd Azhar Azman. "Characterization of Pectin Extracted from Guava Peels Using Deep Eutectic Solvent and Citric Acid." In Charting the Sustainable Future of ASEAN in Science and Technology. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3434-8_36.

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Osmić, Selma, Sabina Begić, and Vladan Mićić. "The Effect of Concentration of Methanol as a Solvent on the Antioxidative Activity of Sage Extract." In Lecture Notes in Networks and Systems. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90893-9_56.

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Zlatkin, Ilia, and Grigory Fedyukovich. "Maximizing Branch Coverage with Constrained Horn Clauses." In Tools and Algorithms for the Construction and Analysis of Systems. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99527-0_14.

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AbstractState-of-the-art solvers for constrained Horn clauses (CHC) are successfully used to generate reachability facts from symbolic encodings of programs. In this paper, we present a new application to test-case generation: if a block of code is provably unreachable, no test case can be generated allowing to explore other blocks of code. Our new approach uses CHC to incrementally construct different program unrollings and extract test cases from models of satisfiable formulas. At the same time, a CHC solver keeps track of CHCs that represent unreachable blocks of code which makes the unrolling process more efficient. In practice, this lets our approach to terminate early while guaranteeing maximal coverage. Our implementation called Horntinuum exhibits promising performance: it generates high coverage in the majority of cases and spends less time on average than state-of-the-art.
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Dixit, Shikha, and Sugandha Tiwari. "Comparative Analysis of Bioactive Compounds for Euphorbia Hirta L. Leaves Extract in Aqueous, Ethanol, and Methanol Solvents Using GC-MS." In Proceedings of the International Conference on Intelligent Vision and Computing (ICIVC 2021). Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-97196-0_44.

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Kalidoss, R., M. Mariraj, M. Shenbagam, et al. "Anti-microbial and Anti-oxidant Properties of Solvent Extract of Lichen Species Collected from Kodaikanal Hills, Western Ghats of Tamil Nadu." In Phytomedicine. CRC Press, 2020. http://dx.doi.org/10.1201/9781003014898-8.

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Conference papers on the topic "Solvents extracts"

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Som, Ayub Md, Norizan Ahmat, Hairul Amani Abdul Hamid, et al. "Phytochemical Screening and Antioxidant Activity of <i>Hylocereus undatus</i> Foliage: Effects of Using Different Drying and Assays Methods." In 5th International Conference on Global Sustainability and Chemical Engineering 2021 (ICGSCE2021). Trans Tech Publications Ltd, 2023. http://dx.doi.org/10.4028/p-m2r02u.

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Phytochemical screening was conducted on Hylocereusundatus foliage to determine the presence of alkaloids, flavonoids, tannins, and saponins using methanol and chloroform solvents via oven-dried and open air-dried methods. As for the antioxidant activity, powdered Hylocereusundatus foliage were extracted using both solvents through Ferric Reduction Antioxidant Power (FRAP) assay; and the findings were then compared to 2,2-Diphenyl-1-Ipicrylhydrazyl (DPPH) assay from previous studies. Results revealed that for both methods in phytochemical screening, flavonoids were present only in methanol ext
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Lv, Guoying, Zuofa Zhang, Huijuan Pan, and Leifa Fan. "Antioxidant Properties of Different Solvents Extracts from Three Edible Mushrooms." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5162375.

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"Determination of Antioxidant Property, Total Phenolics Content, and α-Glucosidase Inhibitory Activity of Different Solvent Extracts of Defatted and Non-Defatted Peanut Skins". У 4th International Conference on Biological & Health Sciences (CIC-BIOHS’2022). Cihan University, 2022. http://dx.doi.org/10.24086/biohs2022/paper.781.

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Peanut skins are by-product with little economic value. The effect of different solvents, on the total phenolic content (TPC), antioxidant property and in vitro antidiabetic activity of defatted and non-defatted peanut skins was determined. TPC was estimated using Folin-Ciocalteau reagent. Antioxidant property was evaluated using ferric reducing antioxidant power (FRAP) and 2, 2-diphenyl-1- picrylhydrazyl (DPPH) radical scavenging capacity methods, α-glucosidase inhibition was evaluated using 4- nitrophenyl α-D-glucopyranoside (pNPG) method. Peanut skin of the defatted extracted with ethanol h
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Viñas-Ospino, Adriana, Manuela Panić, Ivana Radojčić-Redovniković, et al. "Hydrophobic and Hydrophilic Deep Eutectic Solvents to Extract Carotenoids from Orange Peels and Obtain Green Extracts." In Foods 2022. MDPI, 2022. http://dx.doi.org/10.3390/foods2022-12978.

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Konrade, Daiga, and Kriss Spalvins. "Extraction of bioactives from pumpkin by-products and determination of their antioxidant activity." In Research for Rural Development 2022 : annual 28th international scientific conference proceedings. Latvia University of Life Sciences and Technologies, 2022. http://dx.doi.org/10.22616/rrd.28.2022.016.

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Agro-industrial and food processing from pumpkins (Cucurbitaceae) produces a large number of by-products: bark, pomace, seeds still rich in bioactive compounds, especially carotenoids and green pigments (proto chlorophyll (a and b) and proto pheophytin (a and b)), which exhibit a broad spectrum of health-promoting effects and can be used as ingredients in functional food and cosmetics. For extraction of bioactive compounds from dried pumpkin by-products different methods were used: supercritical CO2, Soxhlet extraction with n- hexane, ethanol. Vegetable oils (rapeseed, coconut, grapeseed and o
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Saldana, Marleny D. "Effect of pressurized fluids on the extraction of phenolics/anthocyanins from crops and by-products." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/pnme7357.

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Phenolics found in various crops and by-products have antioxidant and antimicrobial activities and their consumption have been associated with health benefits. For example, a by-product of the cranberry juice industry is cranberry pomace, which is considered a rich source of anthocyanins. Research in my laboratory has focused on the use of pressurized fluids to extract these phenolic compounds to be used in various applications. Pressurized fluids, such as subcritical water, pressurized ethanol and supercritical CO2 (SC-CO2) as “green” and environmentally friendly solvents, can be used for
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Castejon, Natalia. "Eco-friendly Strategies to Produce Bioactive Lipids from the omega-3 Rich Microalga Nannochloropsis Gaditana." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/rwfn7404.

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Microalgae are considered a promising alternative source of omega-3 long chain-polyunsaturated fatty acids (ω-3 LC-PUFAs) since they are the primary producers of eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids in the marine environment. Extraction methods commonly used for the isolation of these bioactives are based on conventional techniques, which imply the use of high volumes of organic solvents and high energy requirements, producing health and environmental problems. In this sense, greener alternatives need to be developed to meet the global consumer demand for natural ingredients
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Hameed, Anmar, Gires Usup, and Asmat Ahmad. "Effect of different solvents extracts and mode of action of Loktanella spp. Gb03 on toxic dinoflagellate." In THE 2016 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Author(s), 2016. http://dx.doi.org/10.1063/1.4966711.

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Buang, Yohanes, Suwari, and Antonius R. B. Ola. "Effects of pH changes in water-based solvents to isolate antibacterial activated extracts of natural products." In INTERNATIONAL CONFERENCE AND WORKSHOP ON MATHEMATICAL ANALYSIS AND ITS APPLICATIONS (ICWOMAA 2017). Author(s), 2017. http://dx.doi.org/10.1063/1.5015997.

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Felicia, Suciu, Roșca Adrian Cosmin, Lupu Carmen, Popescu Antoanela, and Badea Victoria. "DETERMINATION OF POLYPHENOLIC COMPOUNDS OF LYSIMACHIA NUMMULARIA L." In GEOLINKS Conference Proceedings. Saima Consult Ltd, 2021. http://dx.doi.org/10.32008/geolinks2021/b1/v3/08.

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"The history of medicinal plants is associated with the evolution of civilization. In all regions of the world, the history of nations shows that these plants have always occupied an important place in medicine, in cosmetic products, and culinary preparations. The paper aims to determine the total polyphenols in different parts of the species Lysimachia nummularia L. In our study, we focused on the extraction of polyphenolic compounds in different solvents. The solvents used in the extraction were: 40% ethanol, concentrated methanol, in water. The total polyphenol content was determined by spe
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Reports on the topic "Solvents extracts"

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McHenry, E. R. Evaluation of pitches and cokes from solvent-extracted coal materials. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/451287.

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Ra, Jong-Hwan, Masaya Nakamura, and Ju-Sung Kim. Effect of Solvent Concentration on Phenolic Content and Biological Activity of Sasa Quelpaertensis Nakai Ethanol Leaf Extract. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2018. http://dx.doi.org/10.7546/crabs.2018.02.07.

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Ra, Jong-Hwan, Masaya Nakamura, and Ju-Sung Kim. Effect of Solvent Concentration on Phenolic Content and Biological Activity of Sasa Quelpaertensis Nakai Ethanol Leaf Extract. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2018. http://dx.doi.org/10.7546/grabs2018.2.07.

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Poole, Loree Joanne, and C. Judson King. Novel Regenerated Solvent Extraction Processes for the Recovery of Carboxylic Acids or Ammonia from Aqueous Solutions Part I. Regeneration of Amine-Carboxylic Acid Extracts. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/937438.

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Science, Fera. Analysis of CBD Products. Food Standards Agency, 2022. http://dx.doi.org/10.46756/sci.fsa.cis490.

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The Food Standards Agency commissioned Fera Science Ltd. to carry out a survey to obtain a snapshot of CBD products on sale in England and Wales in order to inform FSA risk assessment of CBD products. Thirty CBD products were purchased from a range of online sellers from England and Wales. Samples comprised of two broad categories: oils and sprays, and edibles (including beverages). The sampling followed a scheme suggested by FSA. This is not a statistically representative sample of the market and instead provides a snapshot of the current market, to assist the design of future sampling and su
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Crouch, Rebecca, Jared Smith, Bobbi Stromer, et al. Preparative, extraction, and analytical methods for simultaneous determination of legacy and insensitive munition (IM) constituents in aqueous, soil or sediment, and tissue matrices. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41480.

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No standard method exists for determining levels of insensitive munition (IM) compounds in environmental matrices. This project resulted in new methods of extraction, analytical separation and quantitation of 17 legacy and 7 IM compounds, daughter products of IM, and other munition compounds absent from USEPA Method 8330B. Extraction methods were developed for aqueous (direct-injection and solid-phase extraction [SPE]), soil, sediment, and tissue samples using laboratory-spiked samples. Aqueous methods were tested on 5 water sources, with 23 of 24 compounds recovered within DoD QSM Ver5.2 limi
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Crouch, Rebecca, Jared Smith, Bobbi Stromer, et al. Methods for simultaneous determination of legacy and insensitive munition (IM) constituents in aqueous, soil/sediment, and tissue matrices. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41720.

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Currently, no standard method exists for analyzing insensitive munition (IM) compounds in environmental matrices, with or without concurrent legacy munition compounds, resulting in potentially inaccurate determinations. The primary objective of this work was to develop new methods of extraction, pre-concentration, and analytical separation/quantitation of 17 legacy munition compounds along with several additional IM compounds, IM breakdown products, and other munition compounds that are not currently included in U.S. Environmental Protection Agency (EPA) Method 8330B. Analytical methods were d
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Glasscott, Matthew, Johanna Jernberg, Erik Alberts, and Lee Moores. Toward the electrochemical detection of 2,4-dinitroanisole (DNAN) and pentaerythritol tetranitrate (PETN). Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43826.

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Analytical methods to rapidly detect explosive compounds with high precision are paramount for applications ranging from national security to environmental remediation. This report demonstrates two proof-of-concept electroanalytical methods for the quantification of 2,4-dinitroanisol (DNAN) and pentaerythritol tetranitrate (PETN). For the first time, DNAN reduction was analyzed and compared at a bare graphitic carbon electrode, a polyaniline-modified (PANI) electrode, and a molecularly imprinted polymer (MIP) electrode utilizing PANI to explore the effect of surface-area and preconcentration a
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Badia, S., A. Martín, J. Principe, C. Soriano, and R. Rossi. D3.1 Report on nonlinear domain decomposition preconditioners and release of the solvers. Scipedia, 2021. http://dx.doi.org/10.23967/exaqute.2021.2.021.

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This document describes the industrial application, on which the developments of the project are implemented, and the CFD set-up. The developments are implemented over six analysis cases with increasing complexity starting from a 2D geometry with mean wind inflow to a 3D geometry with turbulent inflow and real-time shape optimization. The application represents the CAARC tall building model, which has served as a benchmark model for many studies since the 1970’s when it was first developed. Base moments (bending and torsional moments) of the building are extracted for validation by comparison
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Hefetz, Abraham, and Justin O. Schmidt. Use of Bee-Borne Attractants for Pollination of Nonrewarding Flowers: Model System of Male-Sterile Tomato Flowers. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7586462.bard.

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The use of bee natural product for enhancing pollination is especially valuable in problematic crops that are generally avoided by bees. In the present research we attempted to enhance bee visitation to Male Sterile (M-S) tomato flowers generally used in the production of hybrid seeds. These flowers that lack both pollen and nectar are unattractive to bees that learn rapidly to avoid them. The specific objects were to elucidate the chemical composition of the exocrine products of two bumble bee species the North American Bombus impatiens and the Israeli B. terrestris. Of these, to isolate and
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