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Comparison of two kinds of peroxyl radical pretreatment at chicken myofibrillar proteins glycation on the formation of N-epsilon-carboxymethyllysine and N-epsilon-carboxyethyllysine

文献类型： 外文期刊

作者： Zhu, Zongshuai 1 ; Yang, Jing 2 ; Zhou, Xinghu 2 ; Khan, Iftikhar Ali 3 ; Bassey, Anthony Pius 1 ; Huang, Ming 1 ;

作者机构： 1.Nanjing Agr Univ, Jiangsu Collaborat Innovat Ctr Meat Prod & Proc Q, Key Lab Meat Proc & Qual Control, MOE,Key Lab Meat Prod Proc,MOA, Nanjing 210095, Peoples R China

2.Nanjing Huangjiaoshou Food Sci & Technol Co Ltd, Natl R&D, Ctr Poultry Proc Technol, Nanjing 211200, Jiangsu, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Agr Prod Proc, Nanjing 210095, Peoples R China

关键词： Peroxyl radical; Glycosylation; Myofibrillar proteins; N-epsilon-carboxymethyllysine; N-epsilon-carboxyethyllysine

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2021 年 353 卷

页码：

收录情况： SCI

摘要： During meat processing, two typical advanced glycation end products (AGEs), N-epsilon-carboxymethyllysine (CML) and N-epsilon-carboxyethyllysine (CEL), are generated by free radical induction. However, the impact of peroxyl radicals on myofibrillar proteins (MPs) glycosylation and CML and CEL formation is scarcely reported. In this study, two peroxyl radicals called ROO. and LOO. derived from AAPH (2,2 '-azobis (2-methylpropionamidine) dihydrochloride) and linoleic acid were exposed prior to the Maillard reaction (glucosamine incubation at 37 degrees C for 24 h). Levels of AGEs (CML/CEL), protein oxidation (sulfhydryl/carbonyl), free amino group, surface hydrophobicity, zeta potential, particle size, intrinsic fluorescence intensity and secondary structure were determined. Together with Pearson's correlation, the assumption that free radicals promote MPs oxidation and glycation, alter the aggregation behavior and structure modification, leading to AGEs promotion has been built. In addition, the effect of dose-dependency of peroxyl radical on AGEs has also been established with different effects of peroxyl radical induction.

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