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Objective To study the antioxidant activities of 3 parts of Danshen preparations: aqueous extract,lipophilic extract and hydrolysate of aqueous extract.Method The antioxidant activities of 3 parts were determined by DPPH(1,1-Diphenyl-2-picrylhydrazyl) and TEAC(Trolox equivalent antioxidant capacity) method.The antioxidant activities of these 3 parts were analyzed by UV-Vis spectrophotometry,and then compared.Result Hydrolysate showed better antioxidant activity than aqueous extract,while lipophilic components had extremely poor antioxidant activity in the two systems.ConclusionAqueous extract and hydrolysate of aqueous extract of Danshen preparations were provided with strong antioxidant activities,and the activity of hydrolysate of aqueous extract was even better than aqueous extract.
Objective To study the antioxidant activities of 3 parts of Danshen preparations: aqueous extract, lipophilic extract and hydrolysate of aqueous extract. Method The antioxidant activities of 3 parts were determined by DPPH (1,1-Diphenyl-2-picrylhydrazyl) and TEAC equivalent antioxidant capacity) method.The antioxidant activities of these 3 parts were analyzed by UV-Vis spectrophotometry, and then compared .Result Hydrolysate showed better antioxidant activity than aqueous extract, while lipophilic components had extremely poor antioxidant activity in the two systems. Confusion Aqueous extract and hydrolysate of aqueous extract of Danshen preparations were provided with strong antioxidant activities, and the activity of hydrolysate of aqueous extract was even better than aqueous extract.