柑橘的抗氧化活性研究

Study on Antioxidant Activities of Different Varieties of Citrus

摘要:

基于抗氧化成分对鲁米诺-NaClO体系化学发光强烈的抑制作用，建立了一种评价不同品种柑橘总体抗氧化性大小的方法，并测定了四种柑橘的抗氧化性。用IC50值来评价柑橘的抗氧化性，IC50越小，柑橘的抗氧化性越强。结果表明实验所用柑橘均具有良好的抗氧化性，其中甜橙抗氧化性最强，青橘和沙糖橘次之，金橘最弱。本文建立的鲁米诺-NaClO化学发光法可作为一种高效、快速的抗氧化性测定的分析法，能广泛用于观察多种水果或其他食品的抗氧化性。

Abstract:

A method for evaluating antioxidant activities of different varieties of citrus was developed based on the strong inhibition of the antioxidant constituents on the chemiluminescence of luminol-NaClO system，and the antioxidant activities of four kinds of citrus were determined. Antioxidant activities of citrus were evaluated according to IC50. The results showed that all of the tested citrus had good antioxidant activities, among which the sweet orange showed the highest acivity, followed by green tangerine and orange Shatang. And the weakest activity was found with kumquat. The method based on chemiluminescence of luminol-NaClO system was efficient, rapid and can widely used in evaluating the antioxidant activities of varieties of fruits or other food.