食品科学 ›› 2004, Vol. 25 ›› Issue (12): 143-146.

• 分析检测 • 上一篇    下一篇

蛋黄和肌肉等样品中大豆黄酮和染料木素的反相高效液相色谱(RP-HPLC)法的检测

 耿志荣, 韩正康, 王国杰   

  1. 南京农业大学农业部动物生理生化重点开放实验室
  • 出版日期:2005-12-15 发布日期:2011-10-24

Determination of Daidzein and Genistein in Different Bio-samples by RP-HPLC

 GENG  Zhi-Rong, HAN  Zheng-Kang, WANG  Guo-Jie   

  1. Key Lab of Animal Physiology and Biochemistry,Ministry of Agriculture,Nanjing Agricultural University
  • Online:2005-12-15 Published:2011-10-24

摘要: 建立了RP-HPLC法分离检测大豆黄酮和染料木素的方法。采用的色谱条件为:WatersSpherisorb?ODS2柱(4.6mmi.d.×150mm,5μm),以甲醇-水(体积比为60:40)为流动相,流速为0.7ml/min,检测波长为254nm。大豆黄酮和染料木素日间拟合工作曲线的线性范围分别为0.05~20μg/ml和0.05~10μg/ml,相关系数分别为0.9984(p<0.01)和0.9978(p<0.01)。大豆黄酮和染料木素的加标回收率分别为91.72%~98.56%和96.80%~98.60%,日内、日间精密度分别为1.30%、5.30%和1.17%、3.84%。样品实测值的重复性范围分别为2.15%~5.99%和2.47%~7.17%。探讨了不同生物样品(蛋黄、肌肉、饲料、血清和肝脏)的预处理方法,比较了超声波法、有机溶剂热回流法和冷浸法,结果发现以超声波法提取样品中大豆黄酮和染料木素的提取率最高,操作亦较简易。

关键词: 大豆黄酮, 染料木素, RP-HPLC, 蛋黄, 饲料

Abstract: A reverse-phase high performance liquid chromatographic method was established for the determination of daidzein and genistein. Waters Spherisorb? ODS2 column(4.6mm i.d.× 150mm, 5μ m) was used with a mixture of methanol- water (60:40, V/V) as the mobile phase and a detector set at 254nm. The calibration curve was linear(r=0.9984, p< 0.01) in the range of 0.05~20μg/ml of dadizein and was also linear(r=0.9978, p< 0.01) in the range of 0.05~10μg/ml of genistein. The recoveries of dadidzein and genistein were 91.72%~98.56% and 96.80%~98.60% respectively with the intra-day and inter-day RSDs of 1.30%、5.30% and 1.17%、3.84%, respectively. The pretreatment methods of different bio-samples were compared. It was found that ultrasonic treatment was the best among the three methods.

Key words: daidzein, genistein, RP-HPLC, yolk, feed stuff