Evaluation of effects of ultrasound-assisted curing on the flavor of Chinese bacon.

• Ultrasonic-assisted curing on the flavor formation of Chinese bacon was feasible. • PC and PE were the main flavor precursors in the curing process. • A total of 28 volatile compounds were detected by GC–MS. • The activity of phospholipase is highest during the curing process. The curing stage is of great importance in flavor formation during Chinese bacon processing. Ultrasound-assisted curing plays an essential role in the Lipid oxidation of meat products. In this study, GC–MS and electronic nose were used to analyze the influence of different power ultrasonic-assisted curing on the flavor formation of Chinese bacon. Through the analysis of phospholipid and lipase, the fundamental precursors of ultrasonic on the flavor of Chinese bacon were determined. It was found that there were differences in the flavor contour description of Chinese bacon between the ultrasonic treatment group, mainly due to the change in the W1W sensor. A total of 28 volatile compounds were detected by GC–MS, and the aldehyde content increased with ultrasonic power. PC and PE are the main flavor precursors in the curing process. This study provides a theoretical basis for improving the curing technology of Chinese bacon. [ABSTRACT FROM AUTHOR]