RESUMEN
OBJECTIVE: To evaluate the antioxidant capacity of the extract from Jiangtang Xiaozhi recipe (JXR) of in vitro. METHODS: JXR extract was prepared according to previously reported method. In vitro antioxidant assays were used in this experiment, including 1,1-Diphenyl-2-picrylhydrazyl free radical (DPPH) radical scavenging ability, 2-2'-Azinobis-(3-ethylbenzthiazoline-6-sul phonate (ABTS) radical scavenging ability, reducing power assay, fluorescence recovery after photo bleaching assay, ß-carotene bleaching assay, ferric thiocyanate assay, and thiobarbituric acid method. RESULTS: DPPH, ABTS assay showed that JXR extract had distinct effect on scavenging free radicals; reducing power and ferricreducing-antioxidant power assay showed that JXR extract possessed redox ability; ß-Carotene bleaching assay and antioxidant activity in a linoleic acid system using ferric thiocyanate method, thiobarbituric acid assay indicated that JXR extract could effectively inhibit lipid peroxidation, and the effect was better than that of Vitamin C. CONCLUSION: JXR extract has significant antioxidant capacity in vitro.
