Elucidating salt-reduction mechanisms of aroma-active compounds from yeast extracts through sensomics approaches and electroencephalography
Food Chemistry: X(2024)
摘要
This study investigated the savory intensity of aroma-active compounds derived from yeast extract Maillard reaction models. Sensory evaluation results revealed that beef flavoring model (28.00 g) exhibited the highest savory perception intensity when the yeast extract FA34 (0.50 g) the added. Eleven aroma-active compounds associated with saltiness perception were identified via solid-phase microextraction and extraction combined with gas chromatography–mass spectrometry/olfactory. The odorant–NaCl mixture model and saltiness intensity evaluation results revealed that 2-methylpyrazine, 2-methyl-3-furanthiol, 2,6-dimethylpyrazine, furfuryl mercaptan, and methyl 2-methyl-3-furyl disulfide could significantly (p < 0.01) enhance the saltiness perception of a salt solution (5.00 g/L). Electroencephalography revealed that the main mechanisms underlying aroma-induced saltiness perception enhancement included the strengthening of the saltiness perception signal and prolonging signal stimulation time in the frontal regions of the cerebral cortex.
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关键词
Yeast extract,Maillard reaction,Aroma-active compounds,Salt reduction,Electroencephalography
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