Abstract
This study aims to investigate the effect of chitosan edible coating with medicinal leaf extracts, their antibiofilm and antimicrobial activity against the selected strains of Salmonella spp. and E. coli isolated from the chicken sample. The presence of bioactive compounds in leaf extracts was confirmed by antioxidant assay, polyphenolic content, UV–VIS, FTIR, and GC–MS analysis. Chitosan with M. piperita and P. amboinicus (ECMO) had a greater zone of inhibition against the multidrug-resistant strains (Salmonella spp., 22.10 ± 1.15; E. coli, 24.50 ± 0.500) and biofilm inhibition percentage was ≤96% in both Salmonella spp. and E. coli. In shelf-life analysis, ECMO significantly lowered the growth of pathogens during 15 days of storage period. The results suggest that ECMO was identified as the impeding agent for biofilms and foodborne pathogens. To our knowledge, this is the first study demonstrating the antibiofilm and antibacterial properties of chitosan with M. piperita and P. amboinicus. Novelty impact statement The combination of chitosan with M. piperita and P. amboinicus is the first study on chicken that significantly controlled pathogens during storage period at 4°C. Antibiofilm property was exhibited by chitosan with M. piperita and P. amboinicus against Salmonella spp. and E. coli. Chitosan with M. piperita and P. amboinicus, perchance a new natural preservative for perishable foods.
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