Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 151, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2021.112044
Keywords
Shewanella putrefaciens; Seafood processing contact surface; Biofilm; Acidic electrolysis water (AEW); Available chlorine concentration (ACC)
Categories
Funding
- National Natural Science Foundation of China [31972142]
- Shanghai Engineering Research Center Construction Special Fund from the Shanghai Municipal Science and Technology Commission [19DZ2284000]
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Shewanella putrefaciens is an important specific spoilage organism in seafood under low-temperature storage, capable of forming biofilms on glass, stainless steel, and polystyrene surfaces. Acidic electrolysis water (AEW) was found to be an effective strategy for eliminating mature biofilms, with a concentration of 3 g/L being able to remove almost all biofilms and exhibit a bactericidal effect to prevent secondary contamination during seafood processing. This study contributes to promoting the use of AEW for controlling biofilms in the seafood industry.
Shewanella putrefaciens is an important specific spoilage organism (SSO) in seafood under low-temperature storage and can form biofilms on seafood processing-related contact surfaces, which exacerbates seafood spoilage and causes food safety problems. The characterization of and dynamic change in biofilms formed by Shewanella putrefaciens on three seafood processing-related contact surfaces were investigated in this study. An effective strategy to eliminate mature biofilms by acidic electrolysis water (AEW) was provided. Shewanella putrefaciens can form biofilms on glass, stainless steel and polystyrene, which are closely connected with surface properties such as hydrophilicity/hydrophobicity and surface roughness. AEW can be an excellent choice to clean mature biofilms formed by S. putrefaciens. AEW at a concentration of 3 g/L can remove almost all biofilms on the three common food contact materials tested. There is a bactericidal effect on the biofilm, reducing the possibility of secondary contamination. This study will contribute to promoting the application of AEW for controlling biofilms during seafood processing.
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