Structural characterization and antioxidant activities of the degradation products from Porphyra haitanensis polysaccharides

Guiping Gong,Jixiang Zhao,Chengjian Wang,Ming Wei,Tiantian Dang,Yangni Deng,Jing Sun,Shuang Song,Linjuan Huang,Zhongfu Wang

Process Biochemistry（2018）

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摘要

•Crude polysaccharides (CPP) were obtained from Porphyra haitanensis.•CPP were separated and purified to give five components (PP1–PP5).•The most sulfated component (PP3) was degraded using H2O2-VC to obtain PP3-1–PP3-4.•The most active fraction PP3-4 was purified to give PP3-4a.•The structure of PP3-4a was characterized by FT-IR and 1D/2D NMR spectroscopies.

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关键词

Porphyra haitanensis polysaccharides,Oxidative degradation,Structure,Antioxidant activity

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