- International Journal of Science Letters
- Vol: 4 Issue: 2
- Bacteriological-profile of some vegetables sold in Lafia Metropolis, Nasarawa State, Nigeria
Bacteriological-profile of some vegetables sold in Lafia Metropolis, Nasarawa State, Nigeria
Authors : Emmanuel Oboh, Peace Oleghe, Daniel Ashefo
Pages : 292-301
View : 9 | Download : 5
Publication Date : 2022-08-24
Article Type : Research
Abstract :The bacteriological-profile of fresh spinach and cabbage sold in Lafia Modern Market were analyzed in the Microbiology laboratory of Nasarawa State Polytechnic, Lafia by homogenizing 1g of the sample in 10 ml of peptone water. An aliquot from a 10-fold serial dilution was inoculated using the pour plate method into different bacteriological medium at 37oC for 24 hours. Total number of colonies was counted and identified using standard procedures. Results indicated that spinach had the highest average bacteria count of 1.4 x104CFU/g, 9.2x103CFU/g and 6.1x103CFU/g Nutrient agar, MacConkey agar and Salmonella-Shigella agar respectively, while cabbage had an average bacterial count of 1.0x104CFU/g, 6.0x103CFU/g and 4.1x103 CFU/g on Nutrient agar, MacConkey agar and Salmonella-Shigella agar respectively. The genera of the bacteria isolates identified were Streptococcus spp (8%), Bacillus subtilis and Pseudomonas aeruginosa (15% each), Staphylococcus aureus (16%), Escherichia coli and Salmonella spp (23% each). These isolated bacteria are of public health importance due to their implication in food borne illnesses. It is recommended that hygiene-level of the entire vegetable processing value chain should be improved upon in other to prevent or reduce bacterial contamination.Keywords : Bacteriological-profile, Vegetable, Cabbage, Spinach