食品科学 ›› 2008, Vol. 29 ›› Issue (5): 101-103.

• 基础研究 • 上一篇    下一篇

瓯柑多糖的提取及其对活性氧自由基的清除作用

 吴建章, 叶辉, 向铮, 杨小凤   

  1. 温州医学院药学院; 温州医学生物化学院教研室; 温州医学院药学院;
  • 出版日期:2008-05-15 发布日期:2011-08-26

Extraction of Citrus suavissima Polysaccharide and Its Effect of Scanvenging Oxygen Radical

 WU  Jian-Zhang, YE  Hui, XIANG  Zheng, YANG  Xiao-Feng   

  1. 1.School of Pharmacy,Wenzhou Medical College;2.Faculty of Biochemistry,Wenzhou Medical College
  • Online:2008-05-15 Published:2011-08-26

摘要: 目的:研究瓯柑多糖的提取及其对活性氧自由基的清除作用。方法:依次用热水回流提取、乙醇沉淀、Sevag法除蛋白制得瓯柑粗多糖CSPS(Citrus Suavissima polysaccharide)。用苯酚-硫酸法测其糖含量,红外光谱等进行多糖特征分析,用紫外-可见分光光度法测定了多糖对O-2·和·OH的清除率。结论:瓯柑多糖得率为1.55%,多糖中糖含量为52.07%。红外光谱分析发现具有多糖的特征吸收峰。粗多糖对O-2·和·OH的IC50分别为880μg/ml和1280μg/ml。结论:用水提、醇沉、Sevag法除蛋白得到较高含量的CSPS,CSPS对O-2·和·OH均有一定的清除作用,其活性大小在一定范围内与用量呈正相关。

关键词: 瓯柑, 多糖, ·, OH, O-2·

Abstract: Objective:To extract polysaccharide from Citrus suavissima and analyze its effect of cleaning oxygen radical.Method:The polysaccharide was extracted with hot water at 100 ℃ and precipitated by alcohol.The protein in the extractions was removed by the sevage method.Test were also done with the extraction material,including the determination of sugar,the analysis of polysaccharide behaviour,and the determination of the activities of cleaning oxygen racial.Result:the extraction ratio was 1.55%,and its total sugar content was 52.07 %.IR showed the absorption peak of sugar.In the determination of the activities of cleaning O2· and ·OH,its IC50 was 880 μg/ml and 1280 μg/ml respectively.Conclusion:CSPS has the effect of cleaning oxygen radical.Its activity is positively relative with dosage in certain range.

Key words: Citrus suavissima, polysaccharide, hydroxyl free radical, superoxide anion free radical