天然产物研究与开发 ›› 2018, Vol. 30 ›› Issue (12): 2049-2055.doi: 10.16333/j.1001-6880.2018.12.003

• 研究论文 • 上一篇    下一篇

基于两种主成分分析方法分析石斛化学成分差异

钟伟萍1,罗阳1,陈懿瑶1,李小倩1,王梦妍1,田孟良2*   

  1. 1四川农业大学农学院,成都 611130;2四川农业大学新农村发展研究院,雅安 625014
  • 出版日期:2019-01-02 发布日期:2019-01-02
  • 基金资助:

    四川省农业科技成果转化资金(15NZ0033)

Analysis of Chemical Composition Differences of Dendrobium Based on Two Principal Component Analysis Methods

ZHONG Wei-ping1,LUO Yang1,CHEN Yi-yao1,LI Xiao-qian1,WANG Meng-yan1,TIAN Meng-liang2*   

  1. 1College of Agronomy,Sichuan Agriculture University,Chengdu 611130,China; 2Institute for New Rural Development,Sichuan Agriculture University,Yan'an  625014, China
  • Online:2019-01-02 Published:2019-01-02

摘要: 探索相关性矩阵和协方差矩阵两种算法的主成分分析方法的差异。本文采用两种主成分分析方法分别计算色谱技术检测得到的石斛化学成分并进行聚类讨论。结果表明在16种石斛植物中得到的11种化学成分含量差异明显,通过相关性矩阵和协方差矩阵两种算法提取得到的主成分及其次序有一定差异,结合聚类分析表明两种聚类结果也存在差异。因此,在对近缘种植物天然产物成分进行差异分析或化学成分聚类,甚至在药材类真伪品鉴别的研究中,建立高效、精准的检测手段与选择适当的数据分析方法同等重要。

关键词: 主成分分析, 石斛化学成分, 色谱技术

Abstract: Exploring the differences of principal component analysis methods between two algorithms of correlation matrix and covariance matrix.In order to analyze the differences in chemical composition and cluster discussion of Dendrobium,the chemical components detected by chromatographic techniques were calculated by two principal component analysis methods.Compare the differences between the two methods and choose the appropriate principal component analysis method.The results showed that the content of 11 chemical composition in 16 Dendrobium were significantly different.The principal components extracted by the correlation matrix and the covariance matrix are different,and the clustering analysis shows that the two clustering results are also different.So,the natural product components variance analysis of proximal plants or chemical cluster,even in the research of the authenticity of medicinal material,the establishment of efficient and accurate detection means was as important as the selection of appropriate data analysis methods.

Key words: principal component analysis, chemical composition of dendrobium, chromatography

中图分类号: 

R284 Q914.4