TY - JOUR A1 - Garbe, L.A. A1 - Würtz, A. A1 - Piechotta, Christian A1 - Tressl, R. T1 - The Peptide-catalyzed Maillard Reaction - Characterization of 13C Reductones N2 - The reaction pathways of amino acids and reducing sugars are now fully understood. The focus in the last few years, however, has turned to the reaction of peptides and proteins with reducing sugars. We have investigated the reaction of γ-aminobutanoic acid, the heptapeptide Nα-Acetyl-Lys-Lys-β-Ala-Lys-β-Ala-Lys-Gly, and the model protein β-casein in Maillard reactions with 1-13C arabinose. Characterization of 13C-labeled acetic acid and norfuraneol by gas chromatography–mass spectrometry and nuclear magnetic resonance revealed new formation pathways. The results demonstrate significant differences in the labeling pattern of the products depending on the amine used, indicating different formation pathways of acetic acid and norfuraneol. KW - Norfuraneol KW - 13C labeling KW - Pathway KW - Casein KW - Peptide PY - 2008 U6 - https://doi.org/10.1196/annals.1433.046 SN - 0077-8923 SN - 1749-6632 SN - 0094-8500 VL - 1126 SP - 244 EP - 247 PB - New York Academy of Sciences CY - New York, NY AN - OPUS4-18432 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -