Scavenging Capacities on Oxygen Radicals of Natural Plant Antioxidants

Abstract

Abstract: Objective: To compare the scavenging capacities on oxygen radicals of natural plant antioxidants. Methods:Chemiluminescence. Results: The IC of scavenging O for catechin, the extraction from licorice, • - 50 2 rosemary, grape seed, pulygonum cuspidatum and ginkgo leaf was respectively 6.16, 42.13, 184.29, 15.86, 25.48 and 33.47μ g/ml. The IC50 of scavenging •OH was respectively 0.59, 5.59, 39.89, 2.93, 7.15 and 10.44μg/ml. The IC50 of scavenging H2O2 was respectively 0.69, 24.02, 16.80, 1.34, 27.27 and 6.09μg/ml. Conclusion:The scavenging capacities of catechin was the strongest.

Key words: antioxidant, oxygen radicals, chemiluminescence

TIAN Yun, LU Xiang-Yang, HE Xiao-Jie. Scavenging Capacities on Oxygen Radicals of Natural Plant Antioxidants[J]. FOOD SCIENCE, 2005, 26(6): 123-125.

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Scavenging Capacities on Oxygen Radicals of Natural Plant Antioxidants

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