Table 2 Microorganisms isolated from snack and food contact surfaces
Sample types | Microbial species isolated |
|---|---|
Water for processing | Bacillus, Enterobacter |
Raw maize | Bacillus, Klebsiella, Aspergillus, Rhizopus |
Boiled maize | Bacillus |
Fermented maize | Bacillus, Pseudomonas, Lactobacillus, Staphylococcus, Aspergillus, Rhizopus |
Steep water after fermentation | Bacillus, Staphylococcus, Lactobacillus, Pseudomonas, Aspergillus, Rhizopus |
Milled maize | Proteus, Pseudomonas, Bacillus, Staphylococcus, Lactobacillus, Cephalosporium, Aspergillus, Rhizopus |
Grinded onion | Klebsiella, Proteus, Staphylococcus, Cephalosporium, Aspergillus, Rhizopus |
Milled and kneaded maize | Klebsiella, Proteus, Staphylococcus, Pseudomonas, Aspergillus, Cephalosporium, Penicillium |
Product after first frying | Bacillus, Rhizopus |
1st fried product left overnight | Bacillus, Rhizopus |
Product after final frying | Bacillus, Rhizopus |
Product purchased from Lagos | Bacillus, Klebsiella, Mucor |
Product purchased from Ibadan | Pseudomonas, Bacillus, Aspergillus, Alternaria |
Product from Sango-Ota | Staphylococcus, Bacillus, Penicillium, Fusarium |
Swab of bowls for mixing and holding samples | Pseudomonas, Bacillus, Aspergillus, Penicillium |
Swabs of kneading board | Bacillus, Staphylococcus, Aspergillus |
Swabs of grinding machine | Bacillus, Pseudomonas, Proteus, Staphylococcus, Klebsiella, Aspergillus, Penicillium, Cephalosporium |
Hand swabs of personnel | Bacillus, Staphylococcus, Aspergillus |