期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2013
卷号：2
期号：9
页码：4811
出版社：S&S Publications
摘要：The in-vitro antioxidant activities of juices of both unripen and ripen Citrus aurantifolia (Assamese: kajinemu) was determined. Juices were extracted from fresh ripen and unripen fruits by mechanical squeezing and wereused for the present study. The antioxidant activity of juice was evaluated by using the free radical scavenging activityof 1, 1-diphenyl-2-picrylhydrazyl radical (DPPH), total antioxidant capacity (TAC) by the phosphomolybdenummethod. pH and total acidity was also determined. Unripen juices showed more antioxidant scavenging activity ascompared to ripen juices. The lower antioxidant activity of ripe fruit juices could be due to the possible reduction in theascorbic acid and total phenolic content during ripening. The total antioxidant capacity in terms of ascorbic acid wasalso determined. Comparison was done for both types of juices. Our study reveals that juices of unripen and ripenCitrus aurantifolia possess strong antioxidant activity to provide protection against free radicals induced damage tobiomolecules.
关键词：Antioxidant; phenolics; free radical; DPPH; total antioxidant
