食品科学 ›› 2005, Vol. 26 ›› Issue (11): 78-81.

• 基础研究 • 上一篇    下一篇

红凤菜中活性物质的提取及对超氧阴离子自由基的清除作用

 杨秀娟, 赵晓燕, 马越, 吴秋波, 马荣山   

  1. 沈阳农业大学,北京市蔬菜研究中心
  • 出版日期:2005-11-15 发布日期:2011-10-01

Study on Extraction of Active Substance in Gynura bicolor DC and Its Scavenging Effects to Free Oxygen Radical

 YANG  Xiu-Juan, ZHAO  Xiao-Yan, MA  Yue, WU  Qiu-Bo, MA  Rong-Shan   

  1. 1.Shenyang Agricultural University; 2.Beijing Vegetable Research Center
  • Online:2005-11-15 Published:2011-10-01

摘要: 本文研究了红凤菜不同溶剂提取物对超氧阴离子自由基的清除作用,发现水提取物有较好的清除作用,进一步采用正交实验设计确定水提取最佳工艺,并就其抗氧化性与VC、白菜、芹菜、青椒、紫甘蓝等进行了比较。实验结果表明:红凤菜提取物对超氧阴离子自由基O2•有较强的清除作用,在浓度为750μg/ml时,对O2•的清除率即可达到73.04%,水提取最佳工艺为:浸提温度30℃、固液比1:40、浸提时间为2h。

关键词: 红凤菜, 超氧阴离子自由基, 清除

Abstract: In this study an active substance of Gynura bicolor DC, which could scavenge free oxygen radical, was extractedwith different solvents. It indicated that the extracts with water had better effects to the radicals than with other solvents. The experiments design was drawn by orthogonal test further. It was found that the extracting results were best when ratio of solid to liquid was 40 at 30℃ for 2 hours. The anti-oxidant activity of Gynura bicolor DC was compared with VC, Chinese cabbage, celery, green pepper and purple cabbage too, the results showed that the extracts with water had strong effect upon scavenging O•2, as the concentration reached 750μg/ml. It could scavenge 73.04% of O•2.

Key words: Gynura bicolor DC, oxygen free-radical, scavenging - -