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International Journal of Biological Macromolecules

International Journal of Biological Macromolecules

IF: 7.7
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Enhancing stability and flavor of mung bean-based milk through ultrasound treatment: Impacts on physical-chemical properties and protein structure

Published:5 December 2024 DOI: 10.1016/j.ijbiomac.2024.138465 PMID: 39645106
Ying Dai,?Lina Xing,?Shuangneng Liu,?Jinqi Liu,?Tong Zhu,?Tianqi Jiang,?Xiaowei Zheng,?Sumei Zhou,?Jing Lu

Abstract

Mung bean-based milk (MBM) is a novel plant-based milk that offers several benefits. However, being a legume, the biggest challenge of MBM is its instability and off-flavor. The present study investigated changes in physical-chemical properties and flavor compounds during the ultrasound treatment of MBM. Compared to the untreated and ultrasonic samples before enzyme hydrolysis (UBE), the ultrasonic samples after enzyme hydrolysis and before homogenization (UBH) exhibited a smaller average particle size, higher magnitude of zeta potential, a homogenous structure, and fewer fragments. Ultrasound treatment shifted the protein secondary structure from ordered to disordered. The sample treated by ultrasound after enzymatic hydrolysis for 25?min had the highest free SH group, the lowest surface tension and the highest surface hydrophobicity, preventing protein aggregation. The off-flavor compounds in MBM, including pentanol, hexanol, and hexanal were significantly reduced in UBH 25?min samples. In conclusion, ultrasonication impacted the physical-chemical properties and flavor compounds considerably to improve the stability and flavor of MBM.

Substances (8)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Glycine 56-40-6 C2H5NO2 1822 suppliers $5.00-$38976.00
Tris(hydroxymethyl)aminomethane 77-86-1 C4H11NO3 1503 suppliers $5.00-$8920.00
Ethylenediaminetetraacetic acid 60-00-4 C10H16N2O8 1416 suppliers $10.00-$6397.62
Urea 57-13-6 CH4N2O 1016 suppliers $5.00-$9547.00
Potassium bromide 7758-02-3 BrK 763 suppliers $1570.00
alpha-Amylase 9000-90-2 NULL 491 suppliers $14.00-$2620.00
cellulase 9012-54-8 NULL 480 suppliers $22.00-$1155.92
EC 3.4.21.14 9014-01-1 Unspecified 307 suppliers $53.00-$2240.00

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