Chemometrics Characterization of Iridoids in Gentiana rigescens and Swertia mileensis

doi:10.7677/ynzwyj201514045

Abstract

Abstract:

Gentiana rigescens and Swertia mileensis belonged to Gentianaceae are endemic plants in China. Four iridoids (loganic acid, swertiamarin, gentiopicroside and sweroside) in Grigescens and Smileensis were determined by HPLCDAD. 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 Grigescens 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=-0348，P<005) and had significant positive correlation with altitude (R=0307, P<001). Longitude had significant negative correlation with content of swertiamarin (R=-0592, P<001) and had significant positive correlation with percentage content of sweroside (R=0245, P<005). However, content of gentiopicroside hadn’t correlation with geographical factors (P>005) in the study.

Key words: Gentiana rigescens, Swertia mileensis, Iridoids, Variation, Multiple statistical analyses

CLC Number:

Q 946

SHEN Chao, HUANG Heng-Yu, ZHANG Ji, ZHAO Yan-Li, JIN Hang, WANG Yuan-Zhong. Chemometrics Characterization of Iridoids in Gentiana rigescens and Swertia mileensis[J]. Plant Diversity, 2015, 37(01): 105-112.

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