Evaluation of the antioxidant activities of total flavonoids from tartary buckwheat

摘要

In this study, the antioxidant activities of total flavonoids from tartary buckwheat?(FTB) were evaluated.?In vitro, antioxidant activities of FTB were conducted by determining the 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and butylated hydroxyl toluene (BHT) radical scavenging activities.?In vivo, antioxidant activities of FTB were conducted by determining antioxidant enzymatic activities and malondialdehyde (MDA) contents in serum and liver in mice. FTB were found to be potent scavengers of the DPPH and BHT radicals. Furthermore, FTB significantly increased the activity of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) and reduced the lipid peroxidation in both serum and liver of mice. Results of this study showed that FTB have potent antioxidant and free radical-scavenging activities.