Isolation of Biofilm-Forming Bacteria from Food Processing Equipment Surfaces and the Biofilm-Degrading Activity of Bacillus licheniformis YJE5

Food processing environments are prone to microbial contamination, where biofilm forma- tion by persistent bacteria reduces hygiene and food safety. In this study, 27 biofilm-forming bacterial strains were isolated from processing equipment surfaces, with the dominant strains identified as B. cereus LE3, B. cereus YJBR3, and P. cibi F25. An environmental isolate, B. licheniformis YJE5, exhibited no hemolytic activity and demonstrated strong enzymatic potential. Intracellular substances (ICS)...