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- W2356163089 abstract "Objective To explore chemical constituents and antioxidant activity of bleeding sap of Xinjiang grape trees.Methods The chemical constituents in bleeding sap of Xinjiang grape tree were pro-tested by physical and chemical methods.Using gallic acid as a standard,the content of phenol in bleeding sap of Xinjiang grape tree from different varieties were determined by Folin-Ciocalteu Colorimetry.Anthrone-sulfuric acid method was used to determine the content of polysaccharide,using glucose as a standard.Using bovine serum albumin as a standard,the protein contents were detected by Coomassie brilliant blue method.The mineral elements of samples were determined by ICP-OES.The free amino acids content in bleeding sap of Xinjiang grape tree were analyzed by HPLC.Using ascorbic acid(0.2mg/mL)as a standard,the bleeding sap of Xinjiang grape tree's antioxidant activities were detected by hydroxyl radical reagent kit.Results Among different kinds of Xinjiang grapevine bleeding sap from different origins,the poly phenols content was 2.6~6.6mg/L,the polysaccharide content was 18.3~816mg/L,and the protein content was 3.0~22.4mg/L.The type of mineral elements and amino acids in bleeding sap were 17 and 10,whose contents were 6.20~201.22mg/L and 0.06~118.71mg/L.Its scavenging ability on·OH was higher than Vc.Conclusion Bleeding sap of Xinjiang grape tree is rich in amino acids,polysaccharides,poly phenols and protein.The contents are different due to the different species.Bleeding sap of grape tree has a strong scavenging activity on·OH,and antioxidant activities are different in different kinds of grapes,region and the climate." @default.
- W2356163089 created "2016-06-24" @default.
- W2356163089 creator A5066414565 @default.
- W2356163089 date "2013-01-01" @default.
- W2356163089 modified "2023-09-24" @default.
- W2356163089 title "The pre-explore of chemical constituents and antioxidant activity of bleeding sap of Xinjiang grape trees" @default.
- W2356163089 hasPublicationYear "2013" @default.
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