白酒抗氧化性的初步研究
Preliminary study on antioxidant activity of Chinese liquor
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摘要: 测定了几种不同香型白酒的1,1-二苯基-2-三硝基苯肼(1,1-Diphenyl-2-picrylhydrazyl radical,DPPH)自由基清除率、总的抗氧化力、还原力、金属螯合力。结果表明:白酒具有一定的抗氧化能力,但是相比于其他酒类,其抗氧化能力较低。白酒DPPH自由基清除率平均值为7.80%±2.31%,氧化抑制率平均值为20.50%±8.08%,金属鳌合能力平均值为1.60%±0.84%,还原能力为0.18±0.06。Abstract: In this study, 2, 2-diphenyl-1-picrylhydrazyl (DPPH) , total antioxidant activity, reducing capacity, and chelating capacitywere used to evaluate the antioxidant activity of Chinese liquor. According to each method under study, Chinese liquors had lower antioxidant activity than synthetic antioxidants. The scavenging activity of Chinese liquor was 7.80% ±2.31%. The inhibiting percentage was 20.50% ±8.08%. The chelating activity was 1.60%±0.84%. The reducing capacity was 0.18±0.06 expressed by absorbance.