NSU Research Contributions
Title : Synergistic mechanism of UV-C and postbiotic of Leuconostoc mesenteroides (J. 27) combination to eradicate Salmonella Thompson biofilm in the poultry industry
Authors : Md Ashrafudoulla, Junha Park, Sazzad Hossen Toushik, Shanjida Shaila, Angela Jie-won Ha, Md Ashikur Rahman, Si Hong Park, Sang-Do Ha
Abstract : This study investigated the synergistic mechanism of UV-C and postbiotics against Salmonella enterica ser. Thompson biofilm in the poultry industry. The synergistic activity of postbiotic with UV-C was estimated singly and in combination and observed by field-emission scanning electron microscopy (FE-SEM) and confocal laser scanning microscopy (CLSM). When applied as single treatment, J.27 postbiotic from Leuconostoc mesenteroides and UV-C treatment reduced the S. Thompson biofilm cells by about 1.23 log and 3.23 log CFU/cm2 on stainless steel [SS], 1.23 log and 4.74 log CFU/cm2 on silicon rubber [SR], 0.53 log and 0.72 log CFU/cm2 on chicken tenderloin [CT], and 1.28 log and 1.77 log CFU/cm2 on eggshell [ES], respectively. However, the combination treatment reduced the S. Thompson biofilm cells on SS, SR, CT, and ES surfaces by up to 4.89 log, 6.03 log, 2.08 log, and 3.66 log CFU/cm2, respectively. Especially when the combination of 2 × MIC J.27 postbiotic with 3 min UV-C on SS, 4 × MIC J.27 postbiotic with 3 min UV-C on SR, 4 × MIC J.27 postbiotic with 5 min UV-C on CT, and 1 × MIC J.27 postbiotic with 3 min UV-C on ES was treated to the biofilm formed on each surface, the synergistic value was highest, up to 0.91, 1.04, 0.83, and 0.83, respectively. This study found that LAB J.27 postbiotic and UV-C reduced the biofilm of a pathogenic bacterium on poultry and poultry-related products and showed an antibiofilm effect when treated in combination. The results of this study proposed that the combination of a biological control method with a physical method could be a promising environmentally friendly strategy for reducing food poisoning bacterial biofilm contamination during poultry processing.
| Journal : Food Control | Volume : 164 | Year : 2024 | Issue : October 2024 |
| Pages : 110607 | City : | Edition : | Editors : |
| Publisher : | ISBN : | Book : | Chapter : |
| Proceeding Title : | Institution : | Issuer : | Number : |
