Ultrasonic-assisted stewing enhances the aroma intensity of chicken broth: A perspective of the aroma-binding behavior of fat.

Jun Qi, Chuan-Kang Jia, Wen-Wen Zhang, Hui-Min Yan, Qing-Yuan Cai, Xiu-Ning Yao, Kuo Xu, Ying Xu, Wen-Ping Xu, Guo-Yuan Xiong, Mei-Qi Li

Food chemistry 2023 Jan 01

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This experiment investigated the underlying mechanism of ultrasonic-assisted stewing to enhance the aroma intensity of chicken broth by measuring fat content, oil droplet sizes, zeta potential, viscosity, surface protein loading, lipid oxidation, and aroma compound concentrations. As the thermo-ultrasound time increased, the fat content increased from 0.3 % to 1.2 %, resulting in a milky white appearance. After 1 h of thermo-ultrasound, the broth had the smallest particle size and the highest surface protein load, viscosity, and emulsion stability, as well as the highest total amount of aroma-active compounds of 314.70 ng/mg. With the further extension of thermo-ultrasound time, lipid oxidation increased, but the stability of chicken broth decreased, lowering the content of aroma-active compounds. These outcomes suggested that thermo-ultrasound could enhance the aroma intensity of chicken broth by increasing the fat content and the emulsion stability of the broth. Copyright © 2022 Elsevier Ltd. All rights reserved.

Citation

Jun Qi, Chuan-Kang Jia, Wen-Wen Zhang, Hui-Min Yan, Qing-Yuan Cai, Xiu-Ning Yao, Kuo Xu, Ying Xu, Wen-Ping Xu, Guo-Yuan Xiong, Mei-Qi Li. Ultrasonic-assisted stewing enhances the aroma intensity of chicken broth: A perspective of the aroma-binding behavior of fat. Food chemistry. 2023 Jan 01;398:133913