Effects of ultrasound on the taste components from aqueous extract of unsmoked bacon.
2021
Abstract To investigate the effects of ultrasound on the taste profile of unsmoked bacon, metabolite identification, metabolite analysis and metabolic pathway analysis were performed by 1H NMR, multivariate statistical analyses and MetaboAnalyst respectively. Results showed that ultrasound improved the concentration of free amino acids and organic acids thus promoting the taste development of unsmoked bacon. Sensory results demonstrated that ultrasound groups (especially 500 W) had higher sensory scores compared with non-ultrasonic group, which could be attributed to the improved levels of nine metabolites (alanine, arginine, glutamate, isoleucine, lysine, tyrosine, valine, creatine and lactate) after ultrasound treatment. Meanwhile, six metabolic pathways (tyrosine metabolism, etc.) were screened as crucial pathways tightly related to the taste development of unsmoked bacon after ultrasound treatment. In conclusion, ultrasound is found to be an effective technology to improve the taste profile of unsmoked bacon.
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