Abstract
Gardeniae Fructus was a traditional Chinese medicine (TCM) containing various biological ingredients including iridoids and crocetins, monocyclic monoterpenes, organic acids, and flavonoids. However, few systematic identification studies of the bioactive components in vivo have been reported. Herein, the ingredients and metabolites of Gardeniae Fructus were investigated using high-performance liquid chromatography coupled with high-sensitivity Q-TOF mass spectrometry. A total of 45 prototype compounds in Gardeniae Fructus extract were tentatively identified. After oral administration, 69 of prototypes and metabolites were identified from mice bile, plasma, urine, and feces, in which, 31 compounds were prototypes, and 38 chemicals were metabolites. The in vivo biotransformation pathways of these metabolites were also proposed including phase I (hydrolysis, hydrogenation, oxidation, loss of O, and ketone formation, decarboxylation) and phase II reactions (glycine, cysteine, glutathione, and glutamine, and sulfate conjugation, and glucuronidation). For the first time, our results had revealed systematic metabolic profiles of ingredients in Gardeniae Fructus extract in vivo of mice and replenished novel knowledge into the explanation of effective material and/or toxicological basis of Gardeniae Fructus which deserves further investigation.
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