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随着深入了解氧化压力对各种疾病发生、发展的影响,抗氧化物质及其抗氧化功能越来越受到关注。现有多种测定评价抗氧化能力的方法,抗氧化能力指数(oxygen radical absorbance capacity,ORAC)测定是其中常用的一种体外抗氧化能力评价方法。本文综述报道ORAC法的原理、方法学研究及应用进展。
With a deeper understanding of the impact of oxidative stress on the occurrence and development of various diseases, antioxidants and their anti-oxidant functions are receiving more and more attention. There are a variety of methods for the evaluation of antioxidant capacity and the determination of the oxygen radical absorbance capacity (ORAC), which is commonly used as an in vitro antioxidant capacity evaluation method. This review summarizes the principles, methodology and application of ORAC.