Abstract
Raw salads are regularly implicated in food-borne disease outbreaks globally. Consumption of kachumbari, a raw vegetable salad, alongside roast meat is widespread in Kenya. The aim of this study was to evaluate the bacteriological quality of kachumbari samples (n=39) collected from a cross section of roasted meat eateries in Kenya. The United Kingdom’s Health Protection Agency guidelines were used to infer safety of the salads due to lack of local criteria for microbiological safety of ready-to-eat fresh produce placed in the market. Based on Escherichia coli counts, 14 (35.9%) of the samples were of satisfactory microbial quality (<20 CFU/g), 7 (17.9%) in the borderline (20–≤102 CFU/g), and 18 (46.2%) unsatisfactory (>102 CFU/g). All samples examined for staphylococci had counts falling within the borderline range (20–≤104 CFU/g). Collectively, 3 (7.7%) of the sampled salads were classified as potentially harmful to health and/or unfit for human consumption due to the presumptive presence of 2 (5.1%) Campylobacter spp. and 1 (2.6%) E. coli O157. Salmonella was not detected in any of the samples. The presence of hygiene indicator microorganisms and pathogens demonstrates that kachumbari salads present a public health risk.
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