Characterization of phytochemicals in the roots of wild herbaceous peonies from China and screening for medicinal resources

Phytochemistry
Yong YangLiang-Sheng Wang

Abstract

Paeonia Radix Rubra (PRR) is a very common traditional Chinese medicine (TCM). The roots of Paeonia lactiflora and Paeonia anomala subsp. veitchii are used for the production of PRR. However, other species of section Paeonia in China are also used to produce PRR. The roots of section Paeonia from 20 populations of seven species and two subspecies in China were analyzed by high performance liquid chromatography quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF- MS). A total of 21 metabolites were identified, including nine monoterpene glycosides, seven tannins, three phenols, one paeonol and one flavonoid. There were significant differences in the composition and content of metabolites among different populations. The relative contents of monoterpene glycosides and tannins were generally higher in most samples. Cluster analysis showed that 20 populations could be divided into four groups. Among them, the populations of P. lactiflora and Paeonia mairei were clustered together in one group. The content of paeoniflorin in P. lactiflora was high (>22.20 mg g-1, dry weight, the same below), and the content of lactiflorin in P. mairei (>17.50 mg g-1) was significantly higher than in other species (<2.30 mg g-1). The monoterpene ...Continue Reading

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