期刊
FOOD CHEMISTRY
卷 192, 期 -, 页码 125-133出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.06.110
关键词
N-epsilon-Carboxymethyllysine (CML); N-epsilon-Carboxyethyllysine (CEL); Multiresponse kinetic modelling; Maillard reaction; Lobry de Bruyn-Alberda van Ekenstein (LA) transformation
资金
- FP7 Prometheus project
- Dutch Ministry of Economic Affairs
This study investigated the formation of N-epsilon-carboxymethyllysine (CML) in two caseinate solutions containing: (1) glucose, (2) lactose, each heated at 120 degrees C and 130 degrees C. At both heating temperatures, CML concentration in lactose-caseinate solution was higher than in glucose-caseinate solution. In both solutions, more CML was formed at 130 degrees C than at 120 degrees C. Using multiresponse modelling, two degradation routes for the sugars were confirmed: (1) isomerisation of glucose or lactose and subsequent degradation via Lobry de Bruyn-Alberda van Ekenstein (LA) arrangement; (2) the Maillard reaction between the reducing sugar and lysine residues. Modelling results suggested that CML was not formed from oxidation of the reducing sugars, but from the Maillard reaction via the Amadori rearrangement product. Since CML appeared to be thermally unstable under the current study conditions, it may not be a perfect indicator for heat damage of processed foods. This is the first study in which CML formation was linked to available information on the Maillard reaction via multiresponse modelling. (C) 2015 Elsevier Ltd. All rights reserved.
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