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Effects of food structure and ingredient interactions on antioxidant capacity

Gordon, M. H. (2010) Effects of food structure and ingredient interactions on antioxidant capacity. In: Decker, E. A., Elias, R. J. and McClements, D.J. (eds.) Oxidation in foods and beverages and antioxidant applications. Woodhead Food Series No. 199, 1. Woodhead Publishing Limited, Cambridge, pp. 321-331. ISBN 9781845696481

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Foods are complex biological materials, and the lipids within the food are susceptible to lipid oxidation, which is retarded by antioxidants. The precise structure and composition of the food may affect the antioxidant activity quite strongly in some cases. Solubility of the antioxidant in the phases present is one of the main parameters that affects the variation in antioxidant activity with phase composition of food. Polar antioxidants are more effective in oils, whereas non-polar antioxidants are more effective in oil-in-water emulsions. Antioxidant activity has been reported in a range of different media, including oils, emulsions, liposomes, microemulsions, fish and meat muscles, and the antioxidant activity may vary from one medium to another. Synergy between antioxidants may also vary from one medium to another. Interactions with metals and with proteins affect antioxidant activity and these interactions are also dependent on the phases present.

Item Type:Book or Report Section
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Human Nutrition Research Group
ID Code:15535
Uncontrolled Keywords:Antioxidant; emulsion; liposome; metals; oil; proteins; structure; synergy.
Publisher:Woodhead Publishing Limited

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