Abstract

In this paper, using principal component analysis and cluster analysis method, combining with the statistics software MATLAB. The Qingyuan rough gentian, Zuojia rough gentian, Zuojia leaf gentiana system clustering analysis of experimental data. Main ingredients swertia glycosides, Swertia bitter glycosides, gentian bitter glycosides and oleanolic acid and ursolic acid, etc. Cluster analysis results showed that the three principal component contribution rate of the Qingyuan rough gentian is 89.24%, the three principal component contribution rate of the Zuojia rough gentian is 89.85%, the three principal component contribution rate of the Zuojia leaf gentian is 93.56%. By cluster analysis to Qingyuan rough gentian, Zuojia rough gentian, Zuojia leaf gentiana aristata 3 groups of data were divided into 6, 5, 4 classes, and determine the appearance characteristics of the high quality gentian, provide the basis for breeding to select high quality gentian.

Highlights

  • Gentian for commonly used Chinese traditional medicine, has clear heat dry wet and the efficacy of purging liver fire

  • On the premise of less loss of information can be described with three principal components of trace element content in gentiana all of the data, it satisfies the basic demands of principal component analysis

  • According to the score ranking, No 30 samples of qingyuan rough gentian, has the characteristics of green stem leaves and purple flowers is of high quality

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Summary

Introduction

Gentian for commonly used Chinese traditional medicine, has clear heat dry wet and the efficacy of purging liver fire. Gentian including gentian bitter glycosides and swertia glycosides, Swertia bitter glycosides , and oleanolic acid and ursolic acid, etc. Used in damp heat jaundice, red eyes, mouth, bitter, pain such as disease treatment. Of gentiana bitter glycosides and swertia glycosides, r swertia bitter glycosides, oleanolic acid and ursolic acid content of five elements, principal component analysis and cluster analysis in order to select high-quality gentian provided the scientific basis and theoretical basis for breeding

Experiments and Methods
Experimental Methods
Results and Discussion
Clustering analysis
Conclusions

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