dioscorea/antioxidant

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Neuroprotective and antioxidant activity of compounds from the aerial parts of Dioscorea opposita.

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Bioactivity-guided fractionation of an ethanol extract of the aerial parts of Dioscorea opposita afforded a new compound, 6,7-dihydroxy-2-methoxy-1,4-phenanthrenedione (1), and four known compounds, chrysoeriol 4'-O-beta-D-glucopyranoside (2), chrysoeriol 7-O-beta-D-glucopyranoside (3), alternanthin

Influence of Adding Chinese Yam (Dioscorea opposita Thunb.) Flour on Dough Rheology, Gluten Structure, Baking Performance, and Antioxidant Properties of Bread.

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Impacts of wheat flour substituted with various levels of Chinese yam (Dioscorea opposita Thunb.) flour (from 0% to 25%) on the dough rheological characteristics, gluten structure, baking performance, and antioxidant properties of bread were investigated. The water absorption increased

Antioxidant activity of dioscorea and dehydroepiandrosterone (DHEA) in older humans.

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Dioscorea is a yam steroid extract used in commercial steroid synthesis and consumed by people. DHEA is a steroid which declines with age, but without known activity. This study was designed to determine whether dioscorea supplementation could increase serum dehydroepiandrosterone sulfate (DHEAS) in

Positive or negative? The shell alters the relationship among behavioral defense strategy, energy metabolic levels and antioxidant capacity in freshwater turtles.

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The relationships among energy metabolic levels, behavioral and other physiological traits help to determine the trade-off of energy allocation between different traits and the evolution of life-history driven by natural selection. However, these relationships may be distinctive in

New acylated anthocyanins from purple yam and their antioxidant activity.

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Purple yam (Dioscorea alata L.), which is widely distributed in tropical and subtropical regions, is characterized by its color and viscosity. Previous studies have shown that purple yams contain a variety of acylated anthocyanins that exhibit higher levels of antioxidant activity than the

Antimicrobial, antioxidant activities and total phenolic content of Thai medicinal plants used to treat HIV patients.

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BACKGROUND Opportunistic infections in AIDs patients is the leading cause of death in among them. HIV infection was reported as causes of increasing oxidative stress which may lead to progress of many syndrome. Thus medicinal plants as demonstrated antimicrobial and antioxidant activities would be

Antioxidant properties and xanthine oxidase inhibitory effects of Tamus communis L. root extracts.

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This study was conducted to search for xanthine oxidase (XO) inhibitors from the root extracts of Tamus communis L. traditionally used in folk medicine in Algeria. Root extracts with different solvents were screened for purified milk xanthine oxidase inhibition. The root extracts (methanol,

Antioxidant Potentials and Xanthine Oxidase Inhibitory Effect of Two Furanocoumarins Isolated from Tamus communis L.

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In this investigation, the screening of two furanocoumarins; 5,8- dimethoxypsoralen (1) and heraclinin (2), isolated from the methanol root-extracts of Tamus communis L for their antioxidant activity and xanthine oxidase inhibitory effect was carried out, using different assays such as DPPH free

Contribution of aroma compounds to the antioxidant properties of roasted white yam (Dioscorea rotundata).

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The aroma chemistry and the contribution of the aroma compounds to the anti-oxidative properties of roasted yam have yet to be characterized. The growing popularity of roasted yam in regions where they are being consumed calls for a concerted effort to elucidate their aroma chemistry

Yam (Dioscorea batatas) tuber mucilage exhibited antioxidant activities in vitro.

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The yam (Dioscorea batatas Decne) tuber mucilage (YTM) was extracted and partially purified by SDS and heating treatments. This purified YTM exhibited antioxidant activities in a series of in vitro tests, including 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical (half-inhibition concentration, IC 50,

Natural Antioxidant Potential of Selected Underutilized Wild Yams ( Dioscorea Spp.) for Health Benefit

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Modern research is directed towards finding naturally-occurring antioxidants of plant origin for improving nutrition and health benefit. Wild yam species are used as indigenous food and medicine by various tribal groups of Koraput, India. However, detailed analysis of health promoting bioactive

Chinese yam (Dioscorea alata cv. Tainung No. 2) feeding exhibited antioxidative effects in hyperhomocysteinemia rats.

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Antioxidative effects of Dioscorea alata (D. alata) were investigated in hyperhomocysteinemia (HHcy) induced by methionine (Met) oral feeding (1 (g/kg of BW)/day). HHcy rats were fed a standard laboratory chow supplemented without or with freeze-dried D. alata powder at 1, 2.5, and 5 (g/kg of

Flavonoid rich fraction of Dioscorea bulbifera Linn. (Yam) enhances mitochondrial enzymes and antioxidant status and thereby protects heart from isoproterenol induced myocardial infarction.

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With recent advances in nutrition sciences, natural products and health-promoting foods have received extensive attention from both health professionals and the common population. The flavonoid rich fraction (FRF) of Dioscorea bulbifera Linn. has a strong free radical scavenging activity. FRF (150

Preparation of oligosaccharides from Chinese yam and their antioxidant activity.

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In the present study, the oligosaccharides from Chinese yam were prepared by hydrolysis with hydrogen peroxide (H2O2), which can cleave the glycosidic bonds in polysaccharides. The hydrolysis conditions were optimised by using a central composite design (CCD) as follows: reaction time 4.02 h,

Antioxidant Chinese yam polysaccharides and its pro-proliferative effect on endometrial epithelial cells.

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Chinese yam polysaccharide (CYP) was successfully isolated from the rhizoma of Dioscorea opposita and its chemical characteristics were determined. Antioxidant and pro-proliferative activity of CYP on human endometrial epithelial cells in vitro were investigated. Role of CYP on cell proliferation

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