ISOLATION AND IDENTIFICATION OF BACTERIAL PATHOGENS IN CANNED FISH SOLD IN DAMATURU MAIN MARKET

This study investigated the microbiological quality of canned fish sold in Damaturu Main Market, Yobe State. A total of three canned food samples (three canned fish) were analyzed using standard microbiological techniques, including colony count and Gram staining. Nutrient agar was employed for bacterial isolation, and plates were incubated at 37°C for 24 hours. The total viable bacterial counts ranged from 8.0 × 10⁻⁴ to 6.2 × 10⁻¹ CFU/g, which are far below the acceptable limit of 10² CFU/g for canned foods. Microscopic examination revealed predominantly Gram-positive cocci which might be Micrococcus spp. and coagulase-negative Staphylococcus spp., with occasional Gram-negative rods, indicating minor environmental or handling contamination rather than true pathogenic presence. No foodborne pathogens such as Salmonella or Escherichia coli were detected. These findings suggest that the fish products sold in Damaturu are of good microbiological quality and safe for consumption. The low microbial load confirms the effectiveness of industrial sterilization and packaging processes. Regular monitoring and proper handling are recommended to maintain product