期刊
BIOMEDICAL CHROMATOGRAPHY
卷 33, 期 11, 页码 -出版社
WILEY
DOI: 10.1002/bmc.4637
关键词
Bletilla striata; intestinal bacteria; metabolite identification; multiple constituents; UPLC-ESI-Q-TOF-MSE method
类别
资金
- Guiyang Science and Technology Bureau [[2017]30-29]
- Guizhou Science and Technology Department [[2019]5641, [2017]5601]
- National Natural Science Foundation of China [U1812403, 81860323, 81460630]
- Guizhou Education Department [KY[2018]050]
Bletilla striata (Thunb.) Reichb. f. (Orchidaceae), also known as Bai-ji, is a traditional Chinese herb that is widely used in Asia to treat hematemesis, hemoptysis, traumatic bleeding and other similar disorders. Most studies have focused on the pharmacological activities of polysaccharide extracts from B. striata. Our previous studies found that the nonpolysaccharide fraction from B. striata extract also has a hemostatic effect; however, the active constituents responsible for this pharmacological action are unclear. Thus, the metabolic profiles of the nonpolysaccharide fraction were investigated in Sprague-Dawley rats and intestinal bacteria models using ultra-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry. Mass data were acquired by the MSE method. Eight components including five prototypes and three metabolites were identified in rat biofluids after oral administration of the nonpolysaccharide fraction. The parent compounds underwent various metabolic processes, including hydrolysis, deglucosylation, glycosylation and sulfate conjugation. The results not only reveal the possible metabolic pathway, but also indicate the potential pharmacological components. Further mechanistic studies using nonpolysaccharide compounds of the B. striata extract are required to obtain potential candidate compounds.
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