FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (4): 27-31.

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Comparision Study on Bioactivities of Bletilla striata(Thunb.)Reichb.f.Polysaccharide and BSPSS

CHEN  Jing-Yao, ZHANG  Wei-Ming, WANG  Xi-Da, WU  Ting, LU  Chang-Mei, WU  Guo-Rong   

  1. 1.Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province,Xuzhou 221116,China; 2.CoUege of Life Science,Nanjing Normal University,Nanjing 210097,China; 3.Nanjing Institute for Comprehensive Utilization of Wild Plant,Nanjing 210042,China; 4.The Ocean Environment Monitoring Center of Jiangsu Province,Nanjing 210036,China
  • Online:2007-04-15 Published:2011-12-31

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Abstract:  Bletilla striata polysaccharide（BSPS）was extracted,purified and sulfated.Some physical,chemical characterisitics and biological activities of BSPS and BSPSS（BSPS-sulfate）were studied in this paper.The solubility of BSPSS in water increases much more than that of BSPS.The mean molecular weight of BSPSS is 9.0607×104 and that of BSPS 9.9658×104.BSPSS has a stronger scavenging abifity on O2-·and·OH than that of BSPS.BSPSS and BSPS can inhibit the H2O2-induced hemolysis and promote proliferation of lymphocyte B.BSPSS has obvious inhibition on the growth of lymphocyte B and U937 in vitro.

Key words: Bletilla striata(Thunb.)Reichb.f.polysaccharide(BSPS), sulfation, bioactivitioes, comparision