Quantification and Discrimination of in Vitro Regeneration Swertia nervosa at Different Growth Periods Using the UPLC/UV Coupled with Chemometric Method
文献类型： 外文期刊
作者： Li, Jie 1 ; Zhang, Ji 2 ; Zuo, Zhitian 1 ; Huang, Hengyu 1 ; Wang, Yuanzhong 2 ;
作者机构： 1.Yunnan Univ Tradit Chinese Med, Coll Tradit Chinese Med, Yuhua Rd, Kunming 650500, Yunnan, Peoples R China
2.Yunnan Acad Agr Sci, Inst Med Plants, Beijing Rd, Kunming 650200, Yunnan, Peoples R China
期刊名称：JOURNAL OF AOAC INTERNATIONAL （ 影响因子：1.913； 五年影响因子：1.754 ）
ISSN： 1060-3271
年卷期： 2018 年 101 卷 5 期
页码：
收录情况： SCI
摘要： Background: Swertia nervosa (Wall. ex G. Don) C. B. Clarke, a promising traditional herbal medicine for the treatment of liver disorders, is endangered due to its extensive collection and unsustainable harvesting practices. Objective: The aim of this study is to discuss the diversity of metabolites (loganic acid, sweroside, swertiamarin, and gentiopicroside) at different growth stages and organs of Swertia nervosa using the ultra-high-performance LC (UPLC)/UV coupled with chemometric method. Methods: UPLC data, UV data, and data fusion were treated separately to find more useful information by partial least-squares discriminant analysis (PLS-DA). Hierarchical cluster analysis (HCA), an unsupervised method, was then employed for validating the results from PLS-DA. Results: Three strategies displayed different chemical information associated with the sample discrimination. UV information mainly contributed to the classification of different organs; UPLC information was prominently responsible for both organs and growth periods; the data fusion did not perform with apparent superiority compared with single data analysis, although it provided useful information to differentiate leaves that could not be recognized by UPLC. The quantification result showed that the content of swertiamarin was the highest compared with the other three metabolites, especially in leaves at the rooted stage (19.57 +/- 5.34 mg/g). Therefore, we speculated that interactive transformations occurred among these four metabolites, facilitated by root formation. Conclusions: This work will contribute to exploitation of bioactive compounds of S. nervosa, as well as its large-scale propagation. Highlights: The roots formation may influence the distribution and accumulation of metabolites.
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