Antioxidative components of sweet potatoes.
- 1 January 1984
- journal article
- research article
- Published by Center for Academic Publications Japan in Journal of Nutritional Science and Vitaminology
- Vol. 30 (1) , 37-46
- https://doi.org/10.3177/jnsv.30.37
Abstract
The antioxidative activity of a 70% methanol extract of sweet potatoes was estimated in a linoleic acid-aqueous system. The extract had a markedly strong antioxidative activity. Major phenolic components contained in the 70% methanol extract were identified as chlorogenic acid and isochlorogenic acid-1, -2 and -3 by using high-performance liquid chromatography. The other minor free phenolics were identified, or tentatively identified, as caffeic acid and 4-o-caffeoylquinic acid. Chlorogenic acid and/or isochlorogenic acids had only slight antioxidative activity. From the results of the addition of chlorogenic acid, isochlorogenic acids and the other coexisting components contained in the sweet potato extract, the effective antioxidant activity of the sweet potato extract was proposed to be mainly based on the synergistic effect of phenolic compounds with amino acids.This publication has 6 references indexed in Scilit:
- Phenolic Antioxidants of Soy Protein HydrolyzatesJournal of Food Science, 1982
- SOURCE OF ANTIOXIDANT ACTIVITY OF SOYBEANS AND SOY PRODUCTSJournal of Food Science, 1979
- Use of high-pressure liquid chromatography for analysis of sweet potato phenolicsJournal of Agricultural and Food Chemistry, 1979
- Studies on Antioxidant Activity of Nonenzymic Browning Reaction ProductsAgricultural and Biological Chemistry, 1968
- Lipid Antioxidants in Plant TissueJournal of Food Science, 1965
- The Antioxidant Activity of Vegetable Extracts I. Flavone AglyconesaJournal of Food Science, 1964