食品科学 ›› 2013, Vol. 34 ›› Issue (6): 195-198.doi: 10.7506/spkx1002-6630-201306043

• 分析检测 • 上一篇    下一篇

光果甘草叶总黄酮测定方法

董怡,林恋竹,赵谋明*   

  1. 华南理工大学轻工与食品学院,广东 广州 510640
  • 收稿日期:2011-12-20 修回日期:2013-01-23 出版日期:2013-03-25 发布日期:2013-03-01
  • 通讯作者: 赵谋明 E-mail:femmzhao@scut.edu.cn
  • 基金资助:
    重要活性物质及添加剂生物制造技术研究;中草药活性多糖快速筛选平台建设及其健康产品产业化研究

Determination of Total Flavonoids in Leaves of Glycyrrhiza glabra L. by Spectrophotometry

DONG Yi,LIN Lian-zhu,ZHAO Mou-ming*   

  1. College of Light Industry and Food, South China University of Technology, Guangzhou 510640, China
  • Received:2011-12-20 Revised:2013-01-23 Online:2013-03-25 Published:2013-03-01

摘要: 选用4种常用的黄酮显色方法,通过波长扫描分别确定3种标准对照品(芦丁、槲皮素、甘草苷)及新疆光 果甘草叶80%乙醇提取物在各显色方法下的两个吸收波长,并分别建立标准曲线。按照建立标准曲线的方法测定 新疆光果甘草叶80%乙醇提取物中总黄酮含量,并对各测定方法的精密度、稳定性、重现性及加样回收率进行测 定。通过对比实验结果最终确定光果甘草叶总黄酮测定方法为:以槲皮素为对照品,AlCl3-CH4O显色法,检测波 长为314nm;在此条件下,该方法的精密度、重现性、稳定性及加样回收率的相对标准偏差(RSD)分别为0.92%、 2.15%、0.87%和(105.02±1.11)%。

关键词: 光果甘草, 总黄酮, 槲皮素

Abstract: Four coloration methods were applied for the determination of total flavonoids in leaves of Glycyrrhiza glabra L. from Xinjiang. Two absorption wavelengths were selected in terms of wavelength scanning of 80% ethanol extract from the leaves and standard controls including rutin, quercetin and liquiritin. Standard curves for three standard controls by four coloration methods were established. The accuracy, stability, repeatability and recovery rates of four coloration methods were also determined. The content of total flavonoids were determined using AlCl3-CH4O coloration at 314 nm and quercetin as the control. The RSD for accuracy, stability, repeatability and recovery rate were 0.92%, 0.87%, 2.15% and (105.02 ± 1.11)%, respectively.

Key words: Glycyrrhiza glabra L., total flavonoids, quercetin

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