Antioxidant Activity of Pigment Extracted from Green-Wheat-Bran

作者：Tang Xiao-zhen; Dong Yu-xiu; Wei Si-qing; Zhang Xian-sheng; Yin Yan-ping^*

来源：Agricultural Sciences in China, 2010, 9(6): 825-832.

DOI：10.1016/S1671-2927(09)60160-7

• pigment from green-wheat-bran
• anti-lipid peroxidation
• total antioxidant
• superoxide anion radical scavenging
• active oxygen scavenging
• DPPH scavenging

The anthocyanin pigment extracted from green-wheat-bran was studied to identify its antioxidant activity The antioxidant activities of the pigment were evaluated by anti-lipid peroxidation, total antioxidant activity (TAA), superoxide anion radical scavenging activity (SARSA), active oxygen scavenging activity (AOSA), and DPPH (1,1-diphenyl-2 picrylhydrazyl free radical) radical scavenging activity. The results showed that the pigment had higher antioxidant activity and TAA, SARSA, AOSA and DPPH scavenging activities at a certain concentration than Vc (antiscorbutic vitamin, vitamin C), and the capacity increased with the Increase of pigment concentration Its TAA was 51 06 U mL(-1), 1 73 times of Vc, and SARSA 18 025 21 U mL(-1), 2.26% higher than Vc, and AOSA 3 776 31 U mL(-1), 24 times of Vc As to the DPPH scavenging activity of the pigment, there was a trend that higher concentration performed higher activity significantly improved with the company of Vc The pigment showed significant antioxidant activities evaluated by different assays Results will provide a better understanding on antioxidant activity of green wheat and allow the screening or breeding of green wheat varieties with higher antioxidant activity for food processing

• 出版日期2010-6-20
• 单位山东农业大学