Abstract
The reaction between acrylamide and glycine was studied in the aqueous model system heated at 150°C. The main reaction products were identified as C5H10N2O3, C8H15N3O4, C7H12N2O5 and C10H17N3O6 using HPLC-MS/MS, IT-TOF and NMR. Both of the critical intermediates were identified as glyoxylic acid and iminodiacetic acid. The pathways for the removal of acrylamide by glycine were proposed as the Michael addition between acrylamide and glycine with or without the initial oxidation of glycine. The changes in the contents of reactants and products provided quantitative evidence for the above pathways. The addition products between acrylamide and other 14 amino acids were identified by HPLC-MS/MS also.
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