dioscorea burkilliana/抗氧化劑

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

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

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

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

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

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,

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

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,

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

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

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

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,

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