Abstract :
[en] This study aims to explore the effect of the Maillard reaction (MR) on flavour
development of cheese protein hydrolysates. In addition, the effects of proteolysis,
lipolysis, and the degreasing process on the MR have been explored. Cheese protein
hydrolysates subjected to different treatments were heated with glucose and xylose, and
their amino reactant components, colour parameters, and volatile compounds were
determined. The results showed that the MR significantly affected the content of free
amino acids, peptides, and volatile flavours of cheese protein hydrolysates. Peptides
below 1500 Da and most of the free amino acids were the important amino reactants
during the MR. 3-Ethyl-2,5-dimethylpyrazine, 2,5-dimethylpyrazine, 2-undecanone
and 2-heptanone were the key volatile components of the MR products. The results also
indicated that N-terminal amino acids of the peptide chain were easier to be reacted
than C-terminal amino acids and thus produce a pyrazine-like flavour in the MR.
Funding text :
This work was funded by the Central Guidance on Local Science and Technology Development Fund (2022ZY0003), Chinese Academy of Agricultural Sciences (G2022-IFST-04), and China Agriculture Research System-National Dairy Industry and Technology System (CARS-36).
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