Background The consumption of fresh vegetables and salads has become popular, and because of a greater understanding of health benefits, these are most often eaten raw or with minimal processing. Main body of the abstract The microbiological safety of these vegetables is necessary and the possible source of contamination includes microbial contamination of raw produce, workers hygiene and the condition of the environment and equipment used to process the salad and fresh vegetable for distribution. This article reviewed the previously published literature on the microbiological quality of fresh vegetable and salad. There was 100% isolation of bacteria in all of the studies review which include Escherichia coli, Aspergillus spp., Staphyloccocus aureus, Salmonella, Klebsiella spp., Actinomycetes, Bacillus subtilis, Pseudomonas aeroginosa, Staphyloccocus epidermidis, Bacillus spp., Shigella spp., Lactobacillus and Streptoccocus spp. Short conclusion The review study recommended that fresh vegetables and salad should be properly washed with clean water before preparing.
Foodborne disease is a major public health problem causing considerable morbidity and mortality annually. In the present study, the antibiotic susceptibility patterns of Escherichia coli isolated from food, cooking utensils and palms of food handlers in some restaurants in Zaria, Nigeria were evaluated. A total of 250 samples (220 food samples, 7 hand samples of food handlers, 10 plate samples within restaurants and 13 spoon samples) were collected from five locations in Zaria, Nigeria and analysed for microbial contaminations using standard microbiological techniques. The antibiotic susceptibility pattern of the isolates was determined using Kirby-Bauer modified disc agar diffusion technique. Results revealed that out of 158 acclaimed Enterobacteriaceae isolates evaluated, 19 % (30) were confirmed to be E. coli, while 81 % were Klebsiella. spp, Citrobacter fruendii, Enterobacter spp, Shigella spp, Salmonella spp, Serratia spp, and Cronobacter sakazaki. The majority of the isolates were resistant to amoxiclav (26.08%), ampicillin (26.08%), tetracycline (26.08%) and metronidazole (13.04%). A 33.3% of the isolates were multidrug-resistant. The E. coli isolates were mostly multiple antibiotic resistance with 43.3% having multiple antibiotic resistance index (MARI) ≥ 0.2. In conclusion, E. coli evolved resistance to ampicillin, Amoxicillin Clavulanic acid, and Tetracycline and other tested antimicrobial drugs which would make the treatment of Escherichia coli infections difficult
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