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Updated: Feb 3, 2026

The Cultivation, Growth, and Viability of Lactic Acid Bacteria: A Quality Control Perspective
Published on: June 16, 2022
Improving the thermal fluidity of pasteurized egg white through lactic acid Bacteria fermentation: Rheological,
Zhuoer Tian1, Wenqi Ge1, Jiajing Liu1
1College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
None:
Liquid egg white (LEW) offers transportation and storage advantages. However, the thermal denaturation of LEW proteins during pasteurization increases its viscosity, causing pipeline clogging and deterioration of product quality. In this study, lactic acid bacteria (LAB) were added to LEW prior to pasteurization to reduce the viscosity, aiming to improving the fluidity and maintaining functionality of pasteurized LEW. The rheological results showed that the fermentation process significantly reduces the viscosity of pasteurized LEW (with a maximum decrease to 68.46% at 1 s-1 shear rate). The improved thermal fluidity was attributed to the decreased surface hydrophobicity (698.88 to 330.47) and lower disulfide bond content (0.037 to 0.013), which collectively impeded the thermal-induced aggregation and coagulation of proteins. Fermentation treatment simultaneously enhanced the emulsifying activity and foaming ability of pasteurized LEW. Consequently, this study demonstrates that fermentation treatment holds potential for increasing the processing efficiency and enhancing the quality of pasteurized LEW.
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