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Updated: Jun 15, 2026

Isolation and Analysis of Microbial Communities in Soil, Rhizosphere, and Roots in Perennial Grass Experiments
Published on: July 24, 2018
[FTIR spectra-principal component analysis of Erigeron breviscapus and Erigeron multiradiatus from different areas]
Zhi-Feng Zhang1, Yuan Liu, Hao Zhang
1Ethnic Pharmaceutical Institute of Southwest University for Nationalities, Chengdu 610041, China. zhangzhf99@gmail.com
Abstract:
Erigeron breviscapus and erigeron multiradiatus, belonging to compositae, have been widely used as "meiduoluomi" in traditional Tibetan medicine for treatment of heat-clearing and detoxicating. However, it is difficult to distinguish them because of similarity of morphology. Therefore, the chemotaxonomy method was established. FTIR fingerprint spectra of E. breviscapus and E. multiradiatus samples from 13 geographical origins were studied. The results demonstrated that they could be divided into 2 classes with principal component analysis (PCA). The classification was well correlated to their gene, geographical origins and weather. In the same class, the chemical components are similar to each other, which can be considered as the criterion for evaluating their quality. The results showed that their infrared spectra characteristic of the same species was similar in the range of 4 000-450 cm(-1), but varied significantly for different species. The method is rapid and simple, and could be applied to evaluate the quality of this traditional medicine.
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