journal6 ›› 2013, Vol. 34 ›› Issue (1): 72-76.DOI: 10.3969/j.issn.1007-2985.2013.01.017

• 化学化工 • 上一篇    下一篇

青黛中靛玉红的提取及其抗氧化活性

  

  1. (1.吉首大学化学化工学院,湖南 吉首 416000;2.吉首大学植物资源保护与利用湖南省高校重点实验室,湖南 吉首 416000)
  • 出版日期:2013-01-25 发布日期:2013-01-22
  • 作者简介:陈莉华(1961-),女,湖南吉首人,吉首大学化学化工学院教授,博士,主要从事纳米粒子的生物应用研究.
  • 基金资助:

    科技部科技型中小企业技术创新基金资助项目(10C26214302421;11C26414305373);湘西自治州科技计划项目;吉首大学大学生创新基金资助项目(2011ZXJJ05)

Extraction of Indirubin from Indigo Naturalis and Its Antioxidant Activity

  1. (1.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China;2.Key Laboratory of Plant Resource Conservation and Utilization,Jishou University,Jishou 416000,Hunan China)
  • Online:2013-01-25 Published:2013-01-22

摘要:利用超声波辅助乙酸乙酯提取青黛中靛玉红,考察提取物对羟基自由基的清除作用及对油脂氧化的抑制效果,并与柠檬酸和Vc作比较.用乙酸乙酯为提取剂,料液比为1∶10(g/mL),在40 W超声功率、13 kHz超声频率及250 W加热功率的条件下超声50 min,提取率达到0.12%.提取物对羟基自由基有一定的清除作用,并呈现一定的量效关系,能增加植物油的抗氧化能力,相同条件下对油脂的抗氧化效果强于Vc、柠檬酸.

关键词: 超声波, 乙酸乙酯, 青黛, 靛玉红, 抗氧化活性

Abstract: The indirubin was extracted from natural indigos by using ultrasonic-assisted ethyl acetate.With the same concentration of ascorbic acid and Vc as the control,the antioxidant activity of indirubin was investigated by testing scavenging effects of ·OH and against the peroxidation of oils.The results showed that the extraction ratio of indirubin reached 0.12% under the following conditions:ethyl acetate as extraction agent,1∶10 (g/mL) of material-liquid-ratio,40 w ultrasonic power,13 kHz ultrasonic frequency and 250 W heating power within 50 min.Indirubin extract exhibited ability to remove ·OH and good inhibitory effect on peroxidation of oils.The antioxidant activity was increased with concentration of indirubin increasing,and the activity was better than those of ascorbic acid and Vc.

Key words: ultrasonic, ethyl acetate, indigo naturalis;indirubin;antioxidant activity

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