• Lin-Lin Liu, Hui Li, Dan He, Meng-Lei Wang, Zhen-Li Liu, Yi-Song Shu, Si-Yu Zhao, and Yuan-Yan Liu.
• School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
• Zhongguo Zhong Yao Za Zhi. 2018 Nov 1; 43 (22): 4519-4527.

AbstractThis present study was to investigate the metabolism and excretion of characteristic polyphenols such as flavonoids and coumarins in urine and feces of rats after intragastric administration of ethanol extracts of Citri Reticulatae Pericarpium Viride and Citri Reticulatae Pericarpium. The urine and feces of rats were collected after intragastric administration of 70% ethanol extracts of Citri Reticulatae Pericarpium Viride and Citri Reticulatae Pericarpium. Rapid resolution liquid chromatography coupled with quadrupole tandem mass spectrometry (RRLC-QqQ-MSn) was applied to compare the contents of polyphenols in ethanol extract, urine and feces. By comparing with reference substance, 30 polyphenols were identified from the ethanol extracts of Citri Reticulatae Pericarpium Viride and Citri Reticulatae Pericarpium, including flavone glycosides, flavones, flavonone glycosides, flavonones, flavonol glycosides, polymethoxyflavones, coumarins, and limonoids and so on. The detection of various types of compounds showed differences in contents between the intestinal metabolism and excretion in the feces after systemic circulatory metabolism and renal excretion. The results showed that the polymethoxyflavones and flavonones were primarily excreted through urine, and the flavonone glycosides and limonoids were primarily excreted through feces. However, coumarins were hardly detected in feces and urine, indicating that coumarins may be metabolized in the body.Copyright© by the Chinese Pharmaceutical Association.

11 keywords...

hide…