نتایج جستجو برای: antioxidative compounds
تعداد نتایج: 233131 فیلتر نتایج به سال:
Study of antioxidative properties and Maillard reaction (MR) products in ginger cakes enriched with rutin was conducted. The cakes were formulated on rye flour substituted by 30% (w/w) of flour from husked buckwheat or flour from roasted buckwheat groats. Enrichment of rye-buckwheat ginger cakes with rutin improved their antioxidative properties, showed protective effect on lysine blockage and ...
One new phenolic compound, sapnol A (1), and two new aromatic sophorosides, named saposides A (2) and B (3) were isolated from sugar maple sap. In addition, seven known phenolic compounds 4-10 were isolated. These structures were determined on the basis of NMR experiments as well as chemical evidence. Furthermore, all the isolated compounds 1-10 were tested for antioxidative activity by the sup...
Antioxidant compounds and the antioxidative activities of new Israeli citrus fruit sweetie [(Oroblanco, pummelo-grapefruit hybrid (Citrus grandis C. paradisi)] were compared with the better-known white grapefruit. Total and free phenols were determined with the Folin–Ciocalteu reagent, phenolic acids (free, esters and glycosides) by HPLC analysis and anthocyanins spectrophotometrically. The ant...
We tested the constituents of two Rhodiola plants, Rhodiola sacra S. H. Fu and R. sachalinensis A. BOR, and an Oriental crude drug, Tokaku-joki-to, for their neuroprotective effects. Of the 58 compounds tested, six had considerable protective effects against beta-amyloid-induced death of B103 neuronal cells in vitro. These six compounds also showed protective effects against staurosporine-induc...
Nineteen domestic legume varieties, including 6 soybeans, 7 black soybeans, 4 azuki beans, and 2 mung beans, were evaluated for contents of dietary fiber, total phenolics, and flavonoids. Nine varieties of legumes (black soybean TN6, TN3, BM, and WY; soybean KS1, KS2, and KS8; azuki bean AKS5 and AKS6) were good sources of bioactive compounds and were selected for germination tests. After short...
Thioprolines formed by reacting cysteine with reactive carbonyls have been demonstrated to possess antitumor, antioxidative, and hepatoprotective properties. Using our developed QuEChERS sample preparation in combination a liquid chromatography–tandem mass spectrometry coupled stable isotope-dilution method, we identified quantitated 2-methylthioproline (1) 2-methylthioprolinylglycine (2) grape...
This study evaluated the in vitro antioxidative activity of Khaya senegalensis extracts and inhibitory effects of some sol vent fractions on a-glucosidase and a-amylase activities. The stem bark, root and leaf samples of the plant were sequentially extracted with ethyl acetate, ethanol and water and then tested for antioxidative activity. Our findings revealed that the ethanolic extract of the ...
This study evaluated the in vitro antioxidative activity of Khaya senegalensis extracts and inhibitory effects of some solvent fractions on α-glucosidase and α-amylase activities. The stem bark, root and leaf samples of the plant were sequentially extracted with ethyl acetate, ethanol and water and then tested for antioxidative activity. Our findings revealed that the ethanolic extract of the r...
Based on our previous findings, the present study has focused on free-radical-mediated degradation of the synovial biopolymer hyaluronan. The degradation was induced in vitro by the Weissberger's system comprising ascorbate plus cupric ions in the presence of oxygen, representing a model of the early phase of acute synovial joint inflammation. The study presents a novel strategy for hyaluronan ...
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