Gotowe bibliografie tematyczne / Australian bioactive plants

Gotowa bibliografia na temat „Australian bioactive plants”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 8 lutego 2022

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Artykuły w czasopismach na temat "Australian bioactive plants"

Simpson, B. S., V. Bulone, S. J. Semple, G. W. Booker, R. A. McKinnon i P. Weinstein. "Arid awakening: new opportunities for Australian plant natural product research". Rangeland Journal 38, nr 5 (2016): 467. http://dx.doi.org/10.1071/rj16004.

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The importance of plants and other natural reserves as sources for biologically important compounds, particularly for application in food and medicine, is undeniable. Herein we provide a historical context of the major scientific research programs conducted in Australia that have been aimed at discovering novel bioactive natural products from terrestrial plants. Generally speaking, the main approaches used to guide the discovery of novel bioactive compounds from natural resources have included random, ethnobotanical and chemotaxonomic strategies. Previous Australian plant natural product research campaigns appear to have lacked the use of a fourth strategy with equally high potential, namely the ecologically guided approach. In addition, many large studies have sampled plant material predominantly from tropical regions of Australia, even though arid and semi-arid zones make up 70% of mainland Australia. Therefore, plants growing in arid zone environments, which are exposed to different external stressors (e.g. low rainfall, high ultraviolet exposure) compared with tropical flora, remain an untapped reservoir of potentially novel bioactive compounds. Research of Australian arid zone plants that is ecologically guided creates a new opportunity for the discovery of novel bioactive compounds from plants (and potentially other biota) for application in health care, food and agricultural industries.

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Miller, Kristin I., Shane D. Ingrey, Alfonsus Alvin, Man Yuen Daniel Sze, Basil D. Roufogalis i Brett A. Neilan. "Endophytes and the microbial genetics of traditional medicines". Microbiology Australia 31, nr 2 (2010): 60. http://dx.doi.org/10.1071/ma10060.

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Traditional medicine continues to play an essential role in the healthcare systems of many cultures. In some Asian and African countries up to 80% of the population depend on these ancient and culturally based medicinal practices for their primary healthcare needs. Plants and their derived natural products are frequently employed as traditional medicine and such plants are viewed as attractive targets for the discovery of novel therapeutic agents in natural product investigations. A variety of useful drugs has been discovered following the investigation of traditional herbs, such as morphine (analgesic), digitoxin (cariotonic) and ephedrine (sympathomimetic). These ethnopharmacology approaches to drug discovery are based on the premise that plants used as traditional medicines have shown some form of bioactivity and have the increased likelihood of containing bioactive compounds in comparison to plants selected at random. Three systems of traditional medicine that are relevant to Australian drug discovery researchers include the Chinese, Australian Aboriginal and Indonesian systems.

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Srivarathan, Netzel, Thi Phan i Sultanbawa. "Exploring the Nutritional Profile and Bioactive Potential of Australian Grown Saltbush (Atriplex sp.)". Proceedings 36, nr 1 (21.01.2020): 83. http://dx.doi.org/10.3390/proceedings2019036083.

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Plant foods play a vital role in human nutrition due to their diverse range of macro- and micro-nutrients, fibre and phytochemicals. However, more than 90% of the plant-food demand is satisfied by less than 0.1% of the edible plant species available. Moreover, none of the highly consumed ‘food-plants’ can survive without freshwater irrigation. As the world’s population rises and food sources become limited, alternative avenues for satisfying the world’s food demand are necessary. This persistent situation urges the domestication of wild terrestrial salt tolerant (halophytes) edible plants, of which saltbush (SB) was found to have a long history of use as animal feed and soil erosion control, while very little scientific information is available on its nutritional profile and dietary relevance. Therefore, the present study assessed the nutrient and phytochemical composition of Australian grown oldman SB (Atriplex nummularia) leaves to better understand its nutritional ‘value’ and potential bioactivity. The proximate results showed that SB leaves were rich in protein (20.1 ± 0.18 g/100 g DW), fibre (41.5 ± 0.20 g/100 g DW) and minerals (particularly Ca (1.44 ± 0.03 g/100 g DW), Na (4.13 ± 0.02 g/100 g DW), Mg (0.90 ± 0.01 g/100 g DW), and Fe (11.68 ± 0.35 mg/100 g DW). These initial findings provide important nutritional information to a very promising plant source that could be used alone or synergetic with other foods (e.g., alternative protein and/or fiber source, potential salt substitute). However, further studies need to be carried out to determine the complete nutritional profile of oldman SB leaves, the bioaccessibility/bioavailability of its main nutrients and phytochemicals as well as consumer acceptance in order to develop SB based food products.

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Chaliha, Mridusmita, Anh Dao Thi Phan Phan, Hung Trieu Hong, Geraldine McGuire, Michael E. Netzel i Yasmina Sultanbawa. "Exploring the Nutritional and Functional Properties of Two Understudied Australian Endemic Plants: Diploglottis bracteata and Syzigium aqueum". Proceedings 36, nr 1 (1.02.2020): 93. http://dx.doi.org/10.3390/proceedings2019036093.

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Despite the growing national and international interest for Australian traditional plant foods, information on nutritional and functional properties of many endemic species is limited. This restricts their incorporation in food, beverage and nutraceutical applications. This pilot study explored the phytochemical profiles and antimicrobial activity of two Australian endemic fruits: Diploglottis bracteata and Syzigium aqueum, to explore their marketability. Profiling of major bioactive phytochemicals showed the presence of 3 anthocyanins in S. aqueum (delphinidin-3-glucoside, cyanidin-3-glucoside and peonidin-3-glucoside) and four carotenoids in D. bracteata (lutein, zeaxanthin, β-cryptoxanthin and β-carotene). The total carotenoid content was comparable to that of orange coloured carrots, an important dietary source of carotenoids. Elemental analysis revealed that, compared to blueberry (a popular dietary source), D. bracteata had 4.5 times higher potassium, and 3.7 times higher magnesium content. Calcium levels of S. aqueum was 4.9 times higher than blueberry. Methanol, acetone and water extracts of both fruits were analysed for total phenolic content (TPC) and antimicrobial activity. TPC of D. bracteata and S. aqueum methanolic extracts were 2.9 and 1.4 mg gallic acid equivalents/g FW which is in the same range as blueberry, a popular dietary source of bioactive phenolic compounds. Antimicrobial analysis showed methanol, acetone and water extracts of both fruits have strong inhibitory effects against both Gram positive (Staphylococcus aureus) and Gram negative (Escherichia coli) bacteria, but no effects against fungi (Candida albicans). These promising initial results, diverse phytochemical profiles and strong antibacterial activity, warrant further investigation.

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KOTZE, A. C., J. O'GRADY, J. EMMS, A. F. TOOVEY, S. HUGHES, P. JESSOP, M. BENNELL, P. E. VERCOE i D. K. REVELL. "Exploring the anthelmintic properties of Australian native shrubs with respect to their potential role in livestock grazing systems". Parasitology 136, nr 9 (15.06.2009): 1065–80. http://dx.doi.org/10.1017/s0031182009006386.

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SUMMARYWe measuredin vitroanthelmintic activity in extracts from 85 species of Australian native shrub, with a view to identifying species able to provide a degree of worm control in grazing systems. Approximately 40% of the species showed significant activity in inhibiting development ofHaemonchus contortuslarvae. The most active extracts showed IC50values of 60–300 μg/ml. Pre-incubation with polyvinylpolypyrrolidine removed the activity from some extracts, implicating tannins as the bioactive agent, while in other cases the pre-incubation had no effect, indicating the presence of other anthelmintic compounds. Plant reproductive maturity (onset of flowering or fruiting) was associated with increasing anthelmintic activity in some species. Variability was observed between plants of the same species growing in different environments, while variation between individual plants of the same species within a single field suggests the existence of distinct chemotypes. Significant activity against adultH. contortuswormsin vitrowas also demonstrated in a limited number of extracts tested against this life stage. Our study indicates that there is potential for Australian native shrubs to play an anthelmintic role in grazing systems, and highlights some plant biology factors which will need to be considered in order to maximize any anthelmintic effects.

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Agatonovic-Kustrin, Snezana, Ethan Doyle, Vladimir Gegechkori i David W. Morton. "High-performance thin-layer chromatography linked with (bio)assays and FTIR-ATR spectroscopy as a method for discovery and quantification of bioactive components in native Australian plants". Journal of Pharmaceutical and Biomedical Analysis 184 (maj 2020): 113208. http://dx.doi.org/10.1016/j.jpba.2020.113208.

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Kan, Meng-Wei, i David J. Craik. "Discovery of Cyclotides from Australasian Plants". Australian Journal of Chemistry 73, nr 4 (2020): 287. http://dx.doi.org/10.1071/ch19658.

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This article is part of a special issue celebrating the contributions of Professor Paul Alewood to peptide science. We begin by providing a summary of collaborative projects between the Alewood and Craik groups at The University of Queensland and highlighting the impacts of some of these studies. In particular, studies on the discovery, synthesis, structures, and bioactivities of disulfide-rich toxins from animal venoms have led to a greater understanding of the biology of ion channels and to applications of these bioactive peptides in drug design. The second part of the article focuses on plant-derived disulfide-rich cyclic peptides, known as cyclotides, and includes an analysis of the geographical distribution of Australasian plant species that contain cyclotides as well as an analysis of the diversity of cyclotide sequences found in Australasian plants. This should provide a useful resource for researchers to access native cyclotides and explore their chemistry and biology.

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Shukla, Abha, i Amanpreet Kaur. "A SYSTEMATIC REVIEW OF TRADITIONAL USES BIOACTIVE PHYTOCONSTITUENTS OF GENUS EHRETIA". Asian Journal of Pharmaceutical and Clinical Research 11, nr 6 (7.06.2018): 88. http://dx.doi.org/10.22159/ajpcr.2018.v11i6.25178.

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The plants of the genus Ehretia composed of about 150 species mainly distributed in tropical Asia, Africa, Australia, and North America. They have been used as traditional and folk medicines to treat various ailments in Japan, India, and China for a long time. Previous phytochemical screenings demonstrated that the Ehretia plants mainly contain fatty acids, phenolic acids, flavonoids, cyanogenetic glycosides, and benzoquinones and other constituents from different chemical classes. The pharmacological studies confirmed that the crude extracts or individual compounds from the genus showed antioxidant, anti-inflammatory, antibacterial, antiarthritic, antitubercular, and antiallergic activities, as well as anti-snake venom property. In this review, we presented a summary of the secondary metabolites isolated from different species of Ehretia based on the published literatures up to March 2017. In addition to the traditional medicinal use of Ehretia plants, we focused on the known biological activities of the plants and discussed them in detail here.

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Sudirman, Sabri, Nurjanah Nurjanah i Agoes Mardiono Jacoeb. "Identification of Antioxidant Compounds Structure Large-Leafed Mangrove (Bruguiera gymnorrhiza) Fruit". Jurnal Pengolahan Hasil Perikanan Indonesia 19, nr 2 (31.08.2016): 94. http://dx.doi.org/10.17844/jphpi.v19i2.13108.

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Antioxidants are compounds that can inhibit or prevent the oxidation of the easily oxidized substrate. One of the plants as a potential source of bioactive compounds and antioxidant activity is large-leafed mangrove (Bruguiera gymnorrhiza). This plant is commonly found in the Pacific region of Southeast Asia, Ryukyu Islands, Micronesia and Polynesia (Samoa) to subtropical regions of Australia and has been used by the society. This study aimed to determine the bioactive compounds structure of large-leafed mangrove has the highest antioxidant activity. The compound structure prediction was done by Nuclear Magnetic Resonance (NMR). The compound structure in the selected antioxidant fractions are flavonol, glikosilfalvon and flavon. Those three compounds are flavonoid compound which has a great role as the one that has antioxidant activity in large-leafed mangrove fruit.

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Sudirman, Sabri, Nurjanah Nurjanah i Agoes Mardiono Jacoeb. "Identification of Antioxidant Compounds Structure Large-Leafed Mangrove Fruit". Jurnal Pengolahan Hasil Perikanan Indonesia 19, nr 2 (30.08.2016): 94. http://dx.doi.org/10.17844/jphpi.v19i2.13452.

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Rozprawy doktorskie na temat "Australian bioactive plants"

Hutton, Peter. "Antimicrobial plants of Australia have the potential to prevent lactic acidosis in ruminants". University of Western Australia. School of Animal Biology, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0159.

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[Truncated abstract] Antimicrobial growth promoters are added to feed to prevent lactic acidosis in ruminant animals by selectively inhibiting rumen bacteria that produce lactic acid. However, recently imposed or impending bans on the use of antimicrobial growth promoters in animal production have lead to a critical need to find practical alternatives that are safe for the animal and consumer and that obtain similar production benefits. I investigated bioactive plants of Australia for their potential to prevent lactic acidosis in ruminants. The unifying hypothesis tested was that plants would be identified that selectively inhibit lactic acid-producing bacteria and consequently protect against lactic acidosis. This hypothesis was tested in a three phase process: phase 1, plant selection and collection; phase 2, a three stage protocol for screening plants and essential oils; phase 3, in vivo experiments and chemical fractionation of the most promising plant. I developed an in vitro bioassay that simulated acidosis by adding glucose to rumen fluid in Bellco tubes and incubating for 5 h (Chapter 4). The pH and gas production were used as indicators of acidosis and fermentation activity. I used this bioassay to screen ninety-five plants (dried and ground material from 79 species) and ten essential oils and included a negative control (oaten chaff) and a positive control (virginiamycin). One plant, Eremophila glabra, produced a similar pH (5.63) to the positive control (5.43) although it inhibited gas production to a moderate extent (P < 0.05). ... Seven serrulatane diterpenes were identified to be the major secondary metabolites in E. glabra. The metabolites were screened using a broth dilution and microtitre spectrophotometry method and were selective against S. bovis at between 320 and 1077 [mu]g/ mL. The serrulatanes from E. glabra were probably responsible for the activity against acidosis that I observed in vitro, because they selectively inhibited lactateproducing bacteria. It is also possible that a synergy between serrulatanes and possibly other metabolites are responsible for the activity observed in vitro. The results from my experiments support the role that bioactive plants may have to replace the antibiotics that are added to livestock feed. Australian plants were identified containing compounds that were active against the bacterial processes responsible for ruminant acidosis. To my knowledge this is the first work undertaken to identify bioactive plants of Australia for their potential to prevent acidosis. I developed in vitro screening bioassays that targeted key indicators of acidosis. These bioassays enabled me to identify 5 plants from the 104 screened that could potentially control acidosis. One of these plants in particular, E. glabra, showed a level of activity in vitro that was comparable to antibiotic protection against acidosis. The exciting in vitro results were not demonstrated in vivo but only one dose level of E. glabra was used, which was based on the in vitro work. In contrast to the in vitro system the rumen is a continuous flow system with greater complexity and it is possible that the concentration of E. glabra that I used in vivo was not optimum. This places importance on future dose response experiments to confirm the efficacy of E. glabra in vivo.

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Swasono, Respati Tri. "Bioactive secondary metabolites from Australian invertebrates, Indonesian marine sponges, and an Indonesian terrestrial plant /". [St. Lucia, Qld.], 2006. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19275.pdf.

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Liu, Qian. "An ethnopharmacological study of medicinal plants of the Kamilaroi and Muruwari aboriginal communitites in northern New South Wales". 2006. http://hdl.handle.net/1959.14/416.

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Thesis (PhD)-- Macquarie University, Division of Environmental and Life Sciences, Dept. of Chemistry and Biomolecular Science. 2006.
Bibliography: p. 229-249.
Ch. 1. Introduction -- ch. 2. An ethnobotanical study with the Kamilaroi and Muruwari Aboriginal communities and relationship building -- ch. 3. Biological assay methods and optimisation -- ch. 4. Ethnopharmacological study of Eremophila sturtii -- ch. 5. Ethnopharmacological study of Exocarpos aphyllus -- ch. 6. General conclusions -- Appendices.
This study covered the documentation of first-hand medicinal plant knowledge of Aboriginal communities in northern New South Wales through the isolation and characterisation of bioactive compounds from Aboriginal medicinal plants.
Mode of access: World Wide Web.
xx, 249 p. col. ill., maps, ports

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Części książek na temat "Australian bioactive plants"

Williams, David J., i Mridusmita Chaliha. "Nutritional Characteristics and Bioactive Compounds in Australian Native Plants: A Review". W Australian Native Plants, 223–36. Boca Raton, FL : CRC Press, Taylor & Francis Group, 2016. | Series: Traditional herbal medicines for modern times ; 17: CRC Press, 2017. http://dx.doi.org/10.1201/b20635-17.

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