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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (8): 128-131.

• 林学 园艺 园林 • 上一篇    下一篇

玫瑰茄粗多糖清除DPPH自由基活性研究

王锐 周云 何嵋 薛梅 袁晓春   

  • 收稿日期:2010-12-17 修回日期:2011-02-15 出版日期:2011-04-20 发布日期:2011-04-20

Study on DPPH Free Radical Scavenging Activities of Crude Polysaccharides from Hibiscus sabdariffa L.

  • Received:2010-12-17 Revised:2011-02-15 Online:2011-04-20 Published:2011-04-20

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摘要：

以玫瑰茄干花萼为原料，利用水浸醇析法提取玫瑰茄粗多糖，其抗氧化活性用清除1,1-二苯基苦基苯肼（DPPH）自由基的能力进行评价。结果表明，玫瑰茄粗多糖具有良好的抗氧化活性，其浓度在0.551~2.150 mg/mL范围内，与清除率呈较好的线性关系：y=28.7684x+39.43208，R=0.973。

关键词: 杀菌剂, 杀菌剂

Abstract:

The antioxidateve activity of crude polysaccharides was determined by the capacity of scavenging 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical after dried roselle calyx was extrated by hot-water and ethanol precipitation. The results showed that the crude polysaccharides had better antioxidative activity and in the concentration range of 0.551 ~ 2.150 mg/mL had a good linear relationship: y=28.7684x+39.43208, R=0.973.