Science behind Nutraceuticals

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Antioxidant activity of fresh apples

01.01.2000 | Nature 


MARIAN V. EBERHARDT1, CHANG YONG LEE1 & RUI HAI LIU1
Department of Food Science, 108 Stocking Hall, Cornell University, Ithaca, New York 14853-7201, USA
Nature 405, 903 - 904 (22 June 2000); doi:10.1038/35016151


Vitamin C is used as a dietary supplement because of its antioxidant activity, although a high dose (500 mg) may act as a pro-oxidant in the body. Here we show that 100 g of fresh apples has an antioxidant activity equivalent to 1,500 mg of vitamin C, and that whole-apple extracts inhibit the growth of colon- and liver- cancer cells in vitro in a dose-dependent manner. Our results indicate that natural antioxidants from fresh fruit could be more effective than a dietary supplement.