Assessing the Prevalence and Antibiotic Resistance of Staphylococcus aureus in Powdered Milk Sold in Owerri Municipal and Surrounding Areas: Implications for Food Safety and Public Health

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dc.contributor.authorObum-Nnadi, Charity
dc.date.accessioned2025-01-07T14:45:11Z
dc.date.available2025-01-07T14:45:11Z
dc.date.issued2024-09-20
dc.description.abstractMilk, a nutritious food source, can support the growth of various microbes, including Staphylococcus aureus. This study investigates the prevalence and antibiotic resistance patterns of Staphylococcus aureus in powdered milk sold in Owerri Municipal and surrounding areas. A total of 50 exposed powdered milk samples were collected from different vendors at retail points in Relief Market. The samples were analyzed for Staphylococcus aureus using cultural methods, with identification based on colonial morphology, microscopy, and biochemical tests. The antibiotic susceptibility of the isolates was assessed using the Kirby-Bauer disc diffusion method. Results indicated that the highest mean Staphylococcus aureus count was 1.44 x 10^4 CFU/g in samples exposed outside, while the lowest was 1.19 x 10^4 CFU/g in samples stored inside. Out of the 50 samples, 15 tested positive for Staphylococcus aureus, representing a 30% prevalence rate. Samples exposed outside had a higher occurrence (40%) compared to those stored inside (20%). The antibiogram revealed that the isolates were highly susceptible to Ciprofloxacin (100%), Gentamicin (93.33%), Erythromycin, and Chloramphenicol (73.33%). However, resistance was observed against Norfloxacin (66.67%) and Ampicillin-cloxacillin (26.67%). Notably, five isolates exhibited multi-drug resistance, with a Multiple Antibiotic Resistance Index (MARI) ranging from 0.3 to 0.4. The study highlights a significant prevalence of Staphylococcus aureus in powdered milk and its resistance to commonly used antibiotics, posing a potential public health risk to consumers.
dc.description.sponsorshipSelf Sponsored
dc.identifier.citationChika Maureen Ezenwa and Charity Ndidi Obum-Nnadi*. Assessing the Prevalence and Antibiotic Resistance of Staphylococcus aureus in Powdered Milk Sold in Owerri Municipal and Surrounding Areas: Implications for Food Safety and Public Health. Am J Biomed Sci & Res. 2024 24(1) AJBSR.MS.ID.003167, DOI: 10.34297/AJBSR.2024.24.00316
dc.identifier.urihttps://repository.uniabuja.edu.ng/handle/123456789/631
dc.language.isoen
dc.publisherAmerican Journal of Biomedical Science & Research
dc.subjectStaphylococcus aureus
dc.subjectAntibiotic resistance
dc.subjectEnterotoxins
dc.subjectPathogens
dc.subjectMilk
dc.titleAssessing the Prevalence and Antibiotic Resistance of Staphylococcus aureus in Powdered Milk Sold in Owerri Municipal and Surrounding Areas: Implications for Food Safety and Public Health
dc.typeArticle
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