食品科学 ›› 2002, Vol. 23 ›› Issue (4): 105-107.

• 分析检测 • 上一篇    下一篇

银杏叶提取物中总黄酮测定方法的研究

 石红旗, 缪锦来, 韩丽, 张爱军, 吕培顶, 石书河   

  1. 国家海洋局第一海洋研究所
  • 出版日期:2002-04-15 发布日期:2012-02-13

Study on the Determination Methed of the Flavonoids of Ginkgo Biloba Extract

 SHI  Hong-Qi, MIAO  Jin-Lai, HAN  Li, ZHANG  Ai-Jun, LU Pei-Ding , SHI  Shu-He   

  • Online:2002-04-15 Published:2012-02-13

摘要: 研究了银杏叶黄酮醇甙灌注色谱( Perfusion chromatography)测定方法。该方法采用外标定量法,使用YWG-C18反相柱,确定了较好的测定条件为:流动相甲醇-0.5%磷酸水溶液(60/40,v/v),流速1.5ml/min,检测波长360nm。槲皮素浓度与峰面积呈线性关系的范围为10~180μg/ml。平均回收率为97.5%,RSD为0.67%。实验表明,黄酮醇甙水解经放置后,槲皮素含量下降,山奈酚含量上升,异鼠李素含量变化不明显,总黄酮醇甙含量呈下降趋势。

关键词: 灌注色谱测定, 银杏黄酮醇甙, 银杏叶提取物

Abstract: The quantity of Ginkgo Flavonol Glycosides in GBE (Ginkgo Biloba Extract) was determined by FPLC techniques using external standard method. The column was packed with C18 (4.6μm×250mm). The mobile phase consisted of method-phosphate-water(60:5:35).The flow rate was 1.5ml/min and detection was affected at 360nm. It showed that the quantity of sample and the area of peak were in linear relationship from 2μg/ml to180μg/ml. The average recovery was 97.5%. The relative standard deviation was 1.60%. After the hydrolysis of the flavonoids , the content of quercentin decreased, but the content of kaempferol increased and isorhamnetin remained the same level.

Key words: FPLC , Flavoinds quercetin , Extract of ginkgo biloba L