Study on the Acidic Polysaccharides of Zizyphus Jujube MILL

Abstract

Abstract: Zizyphus jujuba MILL was extracted with ethanol and 80～100℃water, the water elution was concentrated at reducepressure, fractions ZJ-A,ZJ-B,ZJ-C were obtained by Fractional precipitation of the water elution with ethanol.And thenprotein was cleared by CCl3COOH. While ZJ-6 was obtained by further purification of ZJ-B with DEAE -Cellulose and Sepchcryls-300. The molecular weight of ZJ-6 was estimated to be 4206 with HPGPC. Spectral and chromatographic analysis (1HNMR,13CNMR,HPLC) were used to investigated the structural characterization of the polysaccharide.Results showed that ZJ-6’mainchain was (1→4)-linked α-D-galacturonic acid ,and it’s side chains included glucose、xylose、arabinose.

Key words: Zizyphus jujuba MILL, isolation, purification, structure

YANG Yun, MENG Jiang, FENG Wei-Sheng, TIAN Run-Tao. Study on the Acidic Polysaccharides of Zizyphus Jujube MILL[J]. FOOD SCIENCE, 2004, 25(5): 55-58.

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Study on the Acidic Polysaccharides of Zizyphus Jujube MILL

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