Abstract
In the present study, polysaccharides named ALPS and ASPS were isolated from Ampelopsis grossedentata leaves and stems, respectively. Physicochemical properties, in vitro antioxidant activities and the inhibitory effects on α-glucosidase of ALPS and ASPS were investigated. It was found that both ALPS and ASPS were acid protein-bound heteropolysaccharides, although with considerably different chemical composition and molecular weight distribution. Meanwhile, in comparison with ALPS, ASPS exhibited stronger antioxidant activity and inhibitory potential against α-glucosidase according to the in vitro evaluation. Moreover, our results suggested that protein and uronic acid might, at least partly, contribute positively to the biological behavior of ALPS and ASPS.
MeSH terms
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Ampelopsis / chemistry*
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Benzothiazoles / chemistry
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Biphenyl Compounds / chemistry
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Chelating Agents / chemistry
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Enzyme Assays
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Ferrous Compounds / chemistry
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Free Radical Scavengers / chemistry*
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Glycoside Hydrolase Inhibitors*
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Picrates / chemistry
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Plant Extracts / chemistry*
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Plant Leaves / chemistry*
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Plant Proteins / chemistry
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Plant Stems / chemistry*
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Polysaccharides / chemistry*
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Proteoglycans / chemistry
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Sulfonic Acids / chemistry
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alpha-Glucosidases / chemistry
Substances
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Benzothiazoles
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Biphenyl Compounds
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Chelating Agents
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Ferrous Compounds
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Free Radical Scavengers
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Glycoside Hydrolase Inhibitors
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Picrates
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Plant Extracts
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Plant Proteins
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Polysaccharides
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Proteoglycans
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Sulfonic Acids
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2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid
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ferrous sulfate
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1,1-diphenyl-2-picrylhydrazyl
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alpha-Glucosidases