Multivariate comparative evaluation of chemical constituents and antibacterial activity of Ribes stenocarpum Maxim. From different regions in Qinghai-Tibet Plateau
2022
Liang, Xinyue | Ye, Ying | Qiao, Yangbo | Xiao, Jinrong | Zhu, Yunhe | Zhang, Lingang | Liu, Yaoyao
The fruits of Ribes stenocarpum Maxim. (RSM) from eight origins in Qinghai-Tibetan Plateau were used to quantify the contents of total polysaccharides (TP), total flavonoids (TF), titratable acids (TA), total triterpene acids (TTA), fruit oil (FO) and vitamin C (VC). Multivariate comparative analysis was used to investigate the relationship between the most important components and the antibacterial activity of the samples and the ecogeographic factors. The results revealed that, in all samples from different habitats, the highest TP content was 23.91 g/100 g dw, the highest TF content was 5.25 g/100 g dw, the highest TA content was 23.72 g/100 g dw, the highest TTA content was 2.45 g/100 g dw, the highest FO content was 7.36 g/100 g dw, and the highest VC content was 0.08 g/100 g dw. Ecogeographical factors had significant effects on the accumulation of the main components of the samples; antibacterial activity was closely related to the geographical distribution of origin. This study primarily based on a multivariate comparative analysis method, which can provide a basis for the selection of raw material origin for the artificial cultivation, preferential breeding and extraction of natural active substances of RSM.
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