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ANALYSIS OF COMPOSITION AND ANTIOXIDANT ACTIVITY OF BSP-1 FROM SHIRAIA BAMBUSICOLA POLYSACCHARIDES

CHEN Jia-jia1,FU Jiao-long1,GU Hua-jie1,LI Zhao-lan2(1.School of Chemical and Biological Engineering,Suzhou University of Science and Technology, Suzhou 215009,Jiangsu,China;2.State Key Laboratory of Pharmaceutical Biotechnology,School of Life Science, Nanjing University,Nanjing 210093,Jiangsu,China)  
Crude polysaccharide was obtained by extracting Shiraia bambusicola.The polysaccharide was separated into two homogenous fractions(BSP-1 and BSP-2).Molecular weight and composition of BSP-1 were determined by gel filtration and gas chromatography.Its anti-oxidative effect for lard was also studied.The results showed that molecular weight of BSP-1 was 45.64 ku and it was comprised of glucose and mannose in a molar ratio of 2.46:1.The infrared ray spectrum indicatedβ-glucosidal bond in BSP-1.BSP-1 fraction demonstrated remarkable antioxidant ability for lard in in vitro experiments.
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