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Review
. 2022 Nov 30;11(23):3863.
doi: 10.3390/foods11233863.

Ultrasound-Assisted Slightly Acidic Electrolyzed Water in Aquatic Product Sterilization: A Review

Chenchen Zhang  1   2   3   4 , Jing Xie  1   2   3   4   5
Affiliations
Review

Ultrasound-Assisted Slightly Acidic Electrolyzed Water in Aquatic Product Sterilization: A Review

Chenchen Zhang et al. Foods. .

Abstract

Ultrasound has been confirmed as the propagation process of mechanical vibrations in a medium, with a frequency significantly higher than 20 kHz. Moreover, it has an effect of sterilization on foods. In general, ultrasonic sterilization medium is manifested as a liquid. Ultrasonic treatment technology has certain advantages in aquatic product processing. It is noteworthy that this technology will have better effects of sterilization if used in combination with other treatment methods. Slightly acidic electrolyzed water (SAEW) is characterized by high-efficiency broad-spectrum sterilization operation, low cost, and environmental protection, among other properties, and has a positive effect on aquatic product sterilization and preservation. Selecting acidic electrolyzed water with a low concentration coupled with low-power ultrasonic waves for combined sterilization exerts a more potent sterilization effect, and acidic electrolyzed water combined with ultrasonic sterilization is expected to be a potentially environment-friendly alternative. In this study, the sterilization mechanisms of ultrasonic and SAEW methods used both individually and as a synergistic treatment, the effect on microbial growth, and the research progress of the application of the combined effect in the sterilization and refrigeration of aquatic products are reviewed. Furthermore, this study looks forward to the future development trend, with a view to its application in aquatic products, while providing a reference for research and application in the field of processing and safety.

Keywords: aquatic products; microorganisms; slightly acidic electrolyzed water (SAEW); sterilization; ultrasound.

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Conflict of interest statement

The authors declare that they do not have any conflict of interest.

Figures

Figure 1
Figure 1
Reaction principle of ultrasound [16].
Figure 2
Figure 2
Cavitation effect process of ultrasonic wave [25].
Figure 3
Figure 3
The schematic illustration for slightly acid electrolyzed water application [56].
Figure 4
Figure 4
Reaction principle of ultrasonic and slightly acidic electrolyzed water.
See this image and copyright information in PMC

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