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Position: Home > Articles > Identification Method of Xihu Longjing Tea Based on HPLC Hubei Agricultural Sciences 2016,55 (21) 5628-5630

基于高效液相色谱的西湖龙井茶鉴别方法

作  者:
赵明明;周有祥;金钰;胡定金;严伟
单  位:
湖北省农业科学院农业质量标准与检测技术研究所;华中农业大学食品科学技术学院
关键词:
西湖龙井茶;高效液相色谱;主成分分析;产地鉴别
摘  要:
通过高效液相色谱法分析50份龙井茶叶样品中21个特征峰,利用主成分分析,建立区分西湖龙井(XHLJ)与非西湖区龙井茶(NXHLJ)的方法。结果表明,通过主成分分析,提取出3个主成分,累计贡献率为91.3%,21个特征峰中EGCG和CAF的影响因素相对较大。
译  名:
Identification Method of Xihu Longjing Tea Based on HPLC
作  者:
ZHAO Ming-ming;ZHOU You-xiang;JIN Yu;HU Ding-jin;YAN Wei;Institute of Quality Standards and Testing Technology for Agro-Products,Hubei Academy of Agricultural Sciences;College of Food Science,Huazhong Agricultural University;
关键词:
Xihu Longjing tea;;high-performance liquid chromatography;;principal component analysis;;origin identification
摘  要:
The contents of 21 characteristic peaks in 50 Longjing tea samples were measured by high-performance liquid chromatography(HPLC). Then the method for distinguishing Xihu Longjing(XHLJ) and non-Xihu Longjing(NXHLJ) was established based on principal component analysis(PCA). The results showed that 3 principal components could be extracted through principal component analysis,the cumulative contribution rate was 91.3%, and the most important factors in the 21 characteristic peaks were EGCG and CAF.

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