细胞抗氧化活性方法在食物抗氧化活性评价中的研究进展

摘要

It is well known that increasing cardiovascular diseases and cancers were caused by excessive free radicals in vivo.Scavenging of excessive free radicals by antioxidants is one of the effective methods to reduce such diseases.Numerous studies have demonstrated that phytochemicals from fruits,vegetables and whole grains,possess strong antioxidant activity.Therefore,studies on antioxidant effects in vivo or antioxidant activity evaluation of these substances have become a hot topic in the field of functional foods.Cellular antioxidant activity(CAA) assay has been established and widely applied in antioxidant evaluation of functional foods,which can effectively predict the antioxidant activity of phytochemicals in biological system.In this paper,the current research progress of CAA in China and other countries and its application in antioxidant evaluation of functional foods are reviewed in this paper.%由体内过剩自由基引起的心脑血管疾病和癌症病人日渐增加,通过抗氧化物质的作用清除体内过量的自由基是减少此类疾病发生的最主要而有效的方法。大量研究证实,植物化学物质具有显著的抗氧化作用,这些物质的最好来源是水果、蔬菜和谷物等,其在体内的抗氧化效果及活性评价是当前功能食品研究的热点。细胞抗氧化活性（CAA）测定方法是目前建立起的能有效预测植物化学物质在生物系统中抗氧化活性的评价方法,被广泛用于食物中抗氧化活性物质的功能评价。本文综述国内外关于CAA测定方法及其在抗氧化功能食品评价中的研究进展。