Studies on Natural Antioxidants in Citrus Species. I. Determination of Antioxidative Activities of Citrus Fruits

Hisayuki TANIZAWA; Yuki OHKAWA; Yoshio TAKINO; Toshio MIYASE; Akira UENO; Tizuko KAGEYAMA; Setsuo HARA

doi:10.1248/cpb.40.1940

Hisayuki TANIZAWA, Yuki OHKAWA, Yoshio TAKINO, Toshio MIYASE, Akira UENO, Tizuko KAGEYAMA, Setsuo HARA

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Keywords: antioxidative activity, lipid peroxidation, rat liver microsome, citrus, ponkan, immature fruit, exocarp, fruits thinning

JOURNAL FREE ACCESS

1992 Volume 40 Issue 7 Pages 1940-1942

DOI https://doi.org/10.1248/cpb.40.1940

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Abstract

The antioxidative activities of twenty types of citrus fruits were investigated with a screening method which is based on rat liver microsomal lipid peroxidation induced by dihydromicotinamide adenine dinucleotide phosphate (NADPH) and adenosine diphosphate (ADP). The activities of the exocarp were greater than those of the sarcocarp and the activities from immature fruits (colleted in July-August) were greater than those from mature fruits. The strongest antioxidative activity was found in ponkan (Citrus reticulata BLANCO) collected in July.

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