食品科学 ›› 2009, Vol. 30 ›› Issue (2 ): 110-113.doi: 10.7506/spkx1002-6630-200902021

• 工艺技术 • 上一篇    下一篇

超声集成丙醇-硫酸铵双水相体系从苦荞麦苗中提取总黄酮及其抗氧化活性研究

高云涛1,2,李干鹏1,2,李正全2 ,唐光阳1,2,张宝通1   

  1. 1.云南民族大学化学与生物技术学院 2.云南民族大学应用化学研究所
  • 收稿日期:2008-02-18 修回日期:2008-09-17 出版日期:2009-01-15 发布日期:2010-12-29
  • 通讯作者: 高云涛 E-mail:yuntaogao@sohu.com
  • 基金资助:

    云南省社会发展科技计划项目(2007B148M);云南省教育厅科学基金项目(06Y195C);
    国家民委 - 教育部共建民族药资源化学重点实验室开放基金项目(MJY07010)

Study on Extraction of Total Flavonoids from Tartary Buckwheat Seedling Using Ultrasonic Coupled with Propyl Alcohol -Ammonium Sulfate Aqueous Two-phase Separation and Antioxidant Activity of Total Flavonoids Extract

GAO Yun-tao1,2,LI Gan-peng1,2,LI Zheng-quan1,TANG Guang-yang1,2,ZHANG Bao-tong1   

  1. (1.School of Chemistry and Biotechnology, Yunnan Nationalities University, Kunming 650031, China ;
    2.Institute of Applied Chemistry, Yunnan Nationalities University, Kunming 650031, China)
  • Received:2008-02-18 Revised:2008-09-17 Online:2009-01-15 Published:2010-12-29
  • Contact: GAO Yun-tao1 E-mail:yuntaogao@sohu.com

摘要:

本实验利用超声提取集成丙醇- 硫酸铵双水相体系对苦荞麦苗中总黄酮进行提取分离,研究丙醇- 硫酸铵双水相的形成和提取条件对总黄酮得率的影响。结果表明,本方法可有效地从苦荞麦苗中提取总黄酮,提取率为1.86%,提取物中总黄酮含量为19.3%,明显高于回流提取法。提取物对脂质过氧化具有良好的抑制作用,最大抑制率为68.2%,方法操作简便、条件温和,环境友好。

关键词: 超声波提取, 双水相分离, 荞麦苗, 总黄酮, 抗氧化

Abstract:

The ultrasonic extraction technology coupling with propyl alcohol-ammonium sulfate aqueous aqueous two-phase separation for extracting total flavonoids from tartary buckwheat seedling was studied. The results showed that under the optimum conditions, the extraction rate of total flavonoids is 1.86 % and their content in extract is 19.3 %, which is much higher than that extracted by circumfluence of solvent. Moreover, the total flavonoids extract could singificant1y inhibit lipid peroxidation (LPO) induced by ·OH free radical generation system. In a word, this method is simply, mild conditions and environmentally friendly.

Key words: ultrasonic extraction, aqueous two-phase separation, taratry buckwheat seedling, total flavonoids, antioxidantion

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