Vegetables are dietary sources of nutrient, vitamins and fiber for human growth and development cultivated with irrigation water and sewage which can cause contamination. Therefore, the study was aimed to enumerate, isolate and identify bacteria isolated from irrigated vegetables in Kano metropolis. A total of twenty seven 27 vegetables samples were collected from three kinds of vegetables (Carrot, Lettuce and Cabbage) from three different locations (Kwakwaci, Shagari and Jaba quarters wastewater irrigation area). The mean bacterial counts for Daucus carota (Carrot) sample based on the three different location (Kwakwaci, Shagari and Jaba wastewater irrigation area) ranged from 1.40 x103 to 1.63 x103 cfu/ml, the mean bacterial counts for Cabbage sample range from 1.90 x103 to 4.43 x103 while the mean of bacterial counts for Latuca sativa (Lettuce) sample range from 1.33 x103 to 1.70 x103. In Gram-negative bacteria, the most common bacteria isolated and identified were Escherichia coli (27.54%) followed by Salmonella (24.64%) and Shigella (17.39%). In the Gram-positive bacteria only Staphylococcus aureus (30.43%) was found.
Musa et al. (Tue,) studied this question.