absorption and metabolism of modified amino acids in processed foods
The chemical reactions involved in the modifications of amino acids in processed food proteins are described. They concern the Maillard reaction, reaction with polyphenols and tannins, formation of lysinoalanine during alkaline and heat treatments, formation of isopeptides, oxidation reaction of the...
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Published in | Journal of AOAC International Vol. 88; no. 3; pp. 894 - 903 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
England
01.05.2005
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Subjects | |
Online Access | Get more information |
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Summary: | The chemical reactions involved in the modifications of amino acids in processed food proteins are described. They concern the Maillard reaction, reaction with polyphenols and tannins, formation of lysinoalanine during alkaline and heat treatments, formation of isopeptides, oxidation reaction of the sulfur amino acids, and isomerization of the L-amino acids into their D-form. Information on the digestion, absorption, and urinary excretion of the reaction products obtained by using conventional nutritional tests is given. The studies that have been made on the metabolism of these molecules by using a radioisotopic approach to follow their kinetics in the organism after ingestion are also reviewed. This approach provides unique data on the quantitation of the metabolic pathways and on the kinetics of the metabolic processes involved. |
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ISSN: | 1060-3271 1944-7922 |
DOI: | 10.1093/jaoac/88.3.894 |