食品科学 ›› 2008, Vol. 29 ›› Issue (8): 78-79.

• 基础研究 • 上一篇    下一篇

莼菜嫩叶胞内多糖体外抗氧化作用研究

周毅峰, 唐巧玉,罗兴武, 吴永尧   

  1. 生物资源保护与利用湖北省重点实验室; 湖北民族学院生物科学与技术学院; 湖南农业大学生化与发酵工程实验室
  • 出版日期:2008-08-15 发布日期:2011-08-26

Sduty on Antioxidation Function in vitro of Endopolysaccharide from Young Leaves of Brasenia schreberi

 ZHOU  Yi-Feng, TANG  Qiao-Yu, LUO  Xing-Wu, WU  Yong-Yao   

  1. 1. Key Laboratory for Protection and Utilization of Biological Resources of Hubei Province,Enshi 445000,China;2. Department of Bioscience and Technology,Hubei Institute for Nationalities,Enshi 445000,China;3. Laboratory of Biochemical and Fermentation,Hunan Agricultural University,Changsha 410128,China
  • Online:2008-08-15 Published:2011-08-26

摘要: 采用水和碱两种溶剂提取脱胶莼菜嫩叶胞内多糖,并研究莼菜胞内多糖的体外抗氧化活性。结果表明:两种多糖具有较强的体外还原能力和清除羟自由基能力,与多糖浓度呈正相关,但水溶性多糖还原能力和清除羟自由基能力均强于碱溶性多糖;两种多糖清除体外超氧阴离子自由基的最适浓度分别为2.0mg/ml和5.0mg/ml。

关键词: 莼菜, 多糖, 抗氧化

Abstract: Water and lye were used for extracting the endopolysaccharide from young leaves of Brasenia schreberi respectively in this study,and the antioxidation functions in vitro of the two types of polysaccharides,namely water-soluble polysaccharide and alkali-soluble polysaccharide. The results indicated that both the two type of polysaccharides have strong reducing power and· OH scanvenging abilities,which are passively correlated with their concentrations. But both the two capabilities of water-soluble polysaccharide are stronger compared with alkali-soluble polysaccharide. The optimum concentration of watersoluble polysaccharide for scavening super-oxygenic anion is 2.0 mg/ml,but that of alkali-soluble polysaccharide is 5.0mg/ml.

Key words: Brasenia schreberi, polysaccharide, antioxidation