Beta-Lactamase production and antibiotic susceptibility screening of Staphylococus aureus isolated from ready to eat fruits sold in some parts of Offa Metropolis, Nigeria
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Date
2024
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Abstract
The global menace of community-acquired antibiotic resistance of Beta Lactamase-producing
Staphylococcus aureus has been traced to the increased consumption of Ready-to-eat Foods/Fruits.
Samples each of ready-to-eat whole and sliced fruits (sliced pawpaw, apple, sliced watermelon,
garden egg, cucumber, pear, guava, sliced coconut, berry and date fruit) were collected randomly
from vendors in Offa, Kwara State, in Nigeria. Isolation and characterization of Staphylococcus
aureus from the samples were done. The isolates were screened for Beta-Lactamase production and
susceptibility to some antibiotics using standard microbiological techniques. A total of twenty-two
(Twenty coagulase-positive and two coagulase-negative) Staphylococcus aureus was isolated. The
total Staphylococal count was highest in sliced pawpaw (23.30 ± 2.75 × 10⁵ cfu/g) while the least
was recorded in apple (3.0 ± 0.01 × 10⁵ cfu /g). Twenty (20) isolates were recorded to be Beta
Lactamase producers. All the Beta Lactamase producers were 100 % resistant to Aztreoname, 80 %
to Amoxicillin Clavulate, 45 and 35 % to Ceftazidine and Ceftriaxone. Thirty percent of the isolates
were found to be susceptible to Ceftazidine only while 25 % were susceptible to Ceftriaxone only.
The study concluded that increased incidence of Community-Acquired Multidrug-Resistant
Staphylococcus aureus could be traceable to the consumption of unhygienic processed Ready-to eat Fruits. The ripple effects could be dangerous to human health.
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Adedayo MR, Emmanuel TO, Ajiboye AE. Beta-Lactamase production and antibiotic susceptibility screening of Staphylococus aureus isolated from ready-to-eat fruits sold in some parts of Offa Metropolis, Nigeria. J Food Safe & Hyg 2024; 10 (1):22-33 DOI:10.18502/jfsh.v10i1.16442