Journal
FOOD RESEARCH INTERNATIONAL
Volume 51, Issue 2, Pages 836-840Publisher
ELSEVIER
DOI: 10.1016/j.foodres.2013.01.051
Keywords
Advanced glycation end products; Carboxymethyllysine; Glyoxal; Oil; Triglyceride
Categories
Funding
- National Basic Research Program of China [2012CB720800]
- National Natural Science Foundation of China [31130042/C2002, 31271885/C200201]
- Fundamental Research Funds for the Central Universities, SCUT [2011ZZ0084]
- [NCET-10-0395]
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Diet-derived N-epsilon-carboxymethyllysine (CML) is a potential hazard to human health. In this study, the content of CML and its intermediates, fructoselysine and glyoxal (GO), are determined with HPLC-MS in C-13 labeled isotope lipid food model system. It has been testified that GO, derived from linoleic acid (Lin), oleic acid (Ole) and glycerol trioleate (Tri) oxidation, participated in CML formation, marking a new pathway of CML formation. Moreover, five vegetable oils are proved to function favorably towards CML formation CML formation. Analysis on the fatty acids of the five oils indicates a positive effect of unsaturated fatty acids (UFA) on CML formation. Furthermore, the content of CML in milk increases with the increase of cream. Thus, one possible explanation for the high CML content in oil diet is that triglyceride with more UFA is capable of being oxidized to more GO which will participate in CML formation. Our research will contribute to the final solution of controlling the formation of diet-derived CML by inhibiting lipids oxidation and GO formation. (C) 2013 Elsevier Ltd. All rights reserved.
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