Fig. 9From: Protective mechanism of rhubarb anthraquinone glycosides in rats with cerebral ischaemia–reperfusion injury: interactions between medicine and intestinal floraHPLC chromatogram of the mixed anthraquinone reference substance a, HPLC chromatogram of the changes in the RAGs at different time points of in vitro metabolism b. Aloe-emodin-8-O-β-d-glucoside (1), rhein-8-O-β-d-glucoside (2), chrysophanol-8-O-β-d-glucoside (3), emodin-8-O-β-d-glucoside (4), physcion-8-O-β-d-glucoside (5), aloe-emodin (6), rhein (7), chrysophanol (8), emodin (9) and physcion (10)Back to article page