Table 1.
Source and type of hazard and the microbial risk involved
S.No. | Source | Hazard | Risk involved |
---|---|---|---|
1 | Vendor location | Improper food handling | Transfer of pathogens like Salmonella and E. coli, S. aureus from human body and environment into foods |
Improper waste disposal | Transmission of enteric pathogens like Salmonella, Shigella and E. coli via vectors | ||
2 | Raw materials | Water | Passage of pathogens like E. coli, fecal streptococci, Salmonella and Vibrio cholerae |
Vegetables and spices | Introduction sporeformers like Bacilli and Clostridium and pathogens like L. monocytogenes, Shigella, Salmonella, etc. | ||
3 | Utensils and equipments | Chemical contaminants | Leaching of chemical leading to poisoning |
Microbial contaminants | Cross contamination of food with Staphylococcus aureus, E. coli and Shigella due to contaminated water, dish cloth, handler | ||
4 | Storage and reheating | Improper storage temperature and reheating of food | Likelihood of heat stable toxins produced by pathogens like C. perfringens and B. cereus |
5 | Personal hygiene of vendors | Biological hazards | Introduction of Staphylococcus, Salmonella and Shigella via carriers |