Occurrence and Antibiotic Resistance Profile of Bacteria Isolated from Freshly Sliced Ready to Eat Fruits Sold Across Major Retail Outlets within Owerri Metropolis
Résumé
In recent years, there has been a substantial rise in the consumption of sliced ready-to-eat fruits sold across numerous retail outlets in Nigeria. This is because of their high accessibility, convenience, and, most significantly, their lower cost than whole fruits. Nevertheless, these food items have continually acted as carriers for human diseases on a global scale. This study evaluated the occurrence and antibiogram of bacteria from ready-to-eat sliced fruits sold across major retail outlets in the Owerri metropolis. One hundred and fifty samples comprising oranges, watermelons, pineapples, and paw-paws were analysed using standard microbiological techniques. Bacteria isolates were identified using cultural, biochemical, and molecular methods. Antibiotic sensitivity was performed using the Kirby-Bauer diffusion technique. Results showed that orange samples had the highest total viable count (2.50 log cfu/g), total coliform count (2.70 log cfu/g), and faecal coliform count (2.05 log cfu/g), respectively. Staphylococcus aureus predominated in the fruit samples with a percentage occurrence of 29.4%. Isolates exhibited different resistance levels, with Staphylococcus aureus and Bacillus spp showing a high resistance against Gentamycin and ofloxacin. These findings demand further investigation due to the possible health risks of coliform bacteria, faecal coliform and antibiotic resistance. Therefore, monitoring and implementing food safety standards is necessary to protect consumers.
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