天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (7): 1136-1140.

• 开发研究 • 上一篇    下一篇

响应面优化大蒜总黄酮提取及抗氧化研究

张 鑫,张海悦*,李 鹏,亓付祥   

  1. 长春工业大学化学与生命科学学院,长春 130012
  • 出版日期:2014-07-31 发布日期:2014-11-09

Optimization of Extraction Conditions of Garlic Flavonoids Using Response Surface Methodology and Their Antioxidant Property Investigation

ZHANG Xin, ZHANG Hai-yue*, LI Peng, QI Fu-xiang   

  1. College of Chemical and Life Science,Changchun University of Technology,Changchun 130012,China
  • Online:2014-07-31 Published:2014-11-09

摘要: 本实验通过单因素试验探讨了乙醇浓度、料液比、超声时间、超声温度对大蒜总黄酮得率的影响,然后进一步通过响应面分析确定了超声波辅助乙醇提取大蒜总黄酮的最佳工艺条件为:乙醇浓度80%,料液比1:16,超声时间18 min,超声温度53 ℃。在最佳工艺条件下,大蒜总黄酮得率达到3.99%。最后进行邻苯三酚自氧化试验,发现大蒜提取液对超氧阴离子自由基(O2)的抑制率为60.43%,表明大蒜总黄酮有较强的抗氧化活性。

关键词: 大蒜, 总黄酮, 响应面, 抗氧化

Abstract: The effect of ethanol concentration,material-to-solvent ratio,ultrasonic time and ultrasonic temperature on the extraction yield of total garlic flavonoids was investigated by single factor test in this study.The ultrasonic-assisted extraction conditions were further optimized by the response surface analysis and were determined to be ethanol concentration of 80%,material-to-solvent ratio of 1:16,ultrasonic time of 18 min and ultrasonic temperature of 53 oC.Under the optimal extraction conditions,the yield of total garlic flavonoids reached 3.99%.In addition,the pyrogallol autoxidation test indicated that the inhibition rate of superoxide anion radical (O2) of the garlic extract was 60.43%.The result proved that garlic total flavonoids had relative strong antioxidant activity.

Key words: garlic, total flavonoids, response surface, antioxidant activity

中图分类号: 

TQ929.2