%A SHEN Chao, HUANG Heng-Yu, ZHANG Ji, ZHAO Yan-Li, JIN Hang, WANG Yuan-Zhong %T Chemometrics Characterization of Iridoids in Gentiana rigescens and Swertia mileensis %0 Journal Article %D 2015 %J Plant Diversity %R 10.7677/ynzwyj201514045 %P 105-112 %V 37 %N 01 %U {https://journal.kib.ac.cn/CN/abstract/article_33389.shtml} %8 2015-01-25 %X
Gentiana rigescens and Swertia mileensis belonged to Gentianaceae are endemic plants in China. Four iridoids (loganic acid, swertiamarin, gentiopicroside and sweroside) in Grigescens and Smileensis were determined by HPLCDAD. Their chemometrics characterizations were analyzed with multiple statistical analyses. The results showed that there were differences of chemometrics characterization of the iridoids between the two species. All the samples of Grigescens could be classified into four groups based on contents and percentage contents of the four iridoids. Content of loganic acid had significant negative correlation with longitude (R=-0348,P<005) and had significant positive correlation with altitude (R=0307, P<001). Longitude had significant negative correlation with content of swertiamarin (R=-0592, P<001) and had significant positive correlation with percentage content of sweroside (R=0245, P<005). However, content of gentiopicroside hadn’t correlation with geographical factors (P>005) in the study.