食品科学

• 工艺技术 • 上一篇    下一篇

茼蒿叶中总黄酮的提取纯化及抗氧化活性分析

张禄捷,李 荣,姜子涛   

  1. 天津商业大学生物技术与食品科学学院,天津市食品生物技术重点实验室,天津 300134
  • 出版日期:2015-12-25 发布日期:2015-12-24
  • 通讯作者: 姜子涛
  • 基金资助:

    天津市自然科学基金重点项目(12JCZDJC34100)

Extraction, Purification and Antioxidant Activity of Total Flavonoids from Chrysanthemum coronarium L. Leaves

ZHANG Lujie, LI Rong, JIANG Zitao   

  1. Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology and Food Science,
    Tianjin University of Commerce, Tianjin 300134, China
  • Online:2015-12-25 Published:2015-12-24
  • Contact: JIANG Zitao

摘要:

采用二次回归正交旋转组合设计法优化茼蒿叶总黄酮的提取条件,并利用制备色谱对粗黄酮进行纯化,最后通过不同的方法从4 个方面评价总黄酮的抗氧化活性。结果表明,茼蒿叶总黄酮的最佳提取工艺条件为:微波温度73 ℃、乙醇体积分数68%、液料比30∶1(mL/g)、微波功率400 W和微波时间8 min。在此条件下实际总黄酮提取率为0.554%。优化后的总黄酮提取物在总抗氧化活性、羟自由基和DPPH自由基的清除作用,以及对卵黄脂蛋白脂质过氧化的抑制作用方面表现出较高的活性。

关键词: 茼蒿叶总黄酮, 二次回归正交旋转, 制备色谱, 抗氧化性

Abstract:

The extraction conditions of total flavonoids from Chrysanthemum coronarium L. leaves were optimized using
quadratic regression orthogonal rotary method. The flavonoids extracted were purified by preparative chromatography. Their
antioxidant activities were evaluated by four different methods. The optimal extraction conditions were determined as follows:
extraction temperature, 73 ℃; ethanol concentration, 68%; ratio of solvent to sample, 30:1; microwave power, 400 W; and
extraction time, 8 min. Under the optimal extraction conditions, the extraction rate of total flavonoids was 0.554%. The
flavonoids showed high total antioxidant activity, radical scavenging activity against hydroxyl and 1,1-diphenyl-2-picrylhydrazyl
radical (DPPH) free radicals, and inhibitory effect on lipid peroxidation of yolk lipoprotein.

Key words: flavonoids from Chrysanthemum coronarium L. leaves, quadratic regression orthogonal rotary method, preparative chromatography, antioxidant activity

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