YANG Hui, WANG Zhi-bao. Extraction and Antioxidative Activity of Tannins from Scorzonera Sinensis[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(18): 244-246.
YANG Hui, WANG Zhi-bao. Extraction and Antioxidative Activity of Tannins from Scorzonera Sinensis[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(18): 244-246.DOI:
Objective: To determine the content of tannins in above and under ground parts of scorzonera sinensis. To observe antioxidative activity of tannin from scorzonera sinensis. Method: The complexometric titration was used to determine the content of tannins. Iodometric and spectrophotometry were used to determine the effects of tannins on H2O2 and · OH. Result: The tannins in above and under ground parts of scorzonera sinensis was 8.18% and 9.27% accordingly. With the Concentration of 0.05 g · mL-1
the clearance rates on H2O2 and · OH were 8.89% and 88.24%. Conclusion: Tannins of scorzonera sinensis have a strong ability to resistance oxidation.