食品科学 ›› 2007, Vol. 28 ›› Issue (5): 301-304.

• 分析检测 • 上一篇    下一篇

高效液相色谱法测定马铃薯块茎的绿原酸含量

 张建华, 金黎平, 谢开云, 屈冬玉   

  1. 中国农业科学院蔬菜花卉研究所; 中国农业科学院蔬菜花卉研究所 北京100081; 北京100081;
  • 出版日期:2007-05-15 发布日期:2011-12-31

Determination of Chlorogenic Acid of Potato Tuber by HPLC

 ZHANG  Jian-Hua, JIN  Li-Ping, XIE  Kai-Yun, QU  Dong-Yu   

  1. Institute of Vegetable and Flower,Chinese Academy of Agricultural Sciences,Beijing 100081,China
  • Online:2007-05-15 Published:2011-12-31

摘要: 目的:建立测定马铃薯块茎中绿原酸含量的高效液相色谱方法,并测定不同品质特点的马铃薯的绿原酸含量。方法:对甲醇浓度、固液比和超声提取时间三个试验因素进行正交试验设计:ZOBAX C18色谱柱,250mm×4.6mm 5μm;流动相:水-甲醇-冰醋酸(20∶80∶2;30∶70∶2;40∶60∶2);甲醇-0.4%磷酸溶液(10∶90):流速: 1.0ml/min;柱温:室温;进样体积:5μl;检测波长为327nm。结果:精密度:RSD为3.2%,n=6,加样回收率为97.5%,提取条件为:甲醇浓度70%,固液比1∶100,超声提取时间40min。确定水∶甲醇∶冰醋酸=30∶70∶2为流动相。

关键词: 高效液相色谱法, 马铃薯, 块茎, 绿原酸

Abstract: Object:To establish a new HPLC method for determination of chlorogenic acid(CGA)in potato,and determine its content of CGA in five cultivars.Method:Orthogonal experiment for three factors:CH3OH concentration,ratio of solid and liquid and time of ultrasounic extraction.CGA was analyzed with C18column(250 mm×4.6 mm,5μm)and with detector at 327 nm.The mobile phase consisting HO-CH3OH-CH3COOH(20:80:2;30:70:2;40:60:2 respectively),CH3OH-0.4% H3PO4 (10:90).Results:The recovery of CGA is 97.5%,precision(RSD)3.2%(n=6);CGA extraction conditions are:70% CH3OH,ratio of solid and liquid=1:100,and ultrasounic extraction time 40 min with determined mobile phase H2O-CH3OH-CH3COOH=30: 70:2.

Key words: HPLC, potato, tuber, chlorogenic acid