The Chemistry of Protein Oxidation in Food.

M. Hellwig

Published 2019 in Angewandte Chemie

ABSTRACT

Oxidation is one of the deterioration reactions of proteins in food, whose importance does not lag behind that of others such as Maillard, lipation or protein-polyphenol reactions. While research on protein oxidation has led to an accurate perception on the processes and consequences in physiological systems, knowledge on specific implications of protein oxidation in food or the role of "oxidized" dietary protein for the human body is comparatively scarce. Food protein oxidation can occur during the whole processing axis, from primary production to intestinal digestion. The present review wants to summarize the current knowledge and mechanisms of food protein oxidation from a chemical, technological and nutritional-physiological viewpoint and give a comprehensive classification of the individual reactions. Different analytical approaches will be compared, and the relationship between oxidation of food proteins and oxidative stress in vivo will be critically evaluated.

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