illness resulting from the consumption of food
commonly known as food poisoning,
can be caused by consuming a food contaminated with a chemical or natural toxin, or pathogens (bacteria, viruses, parasites)
contamination can occur before, during, and after food preparation
Types of food risks
raw shellfish
raw meat and
poultry
Outbreaks found in both domestic and imported green onions
Chemical cleaning and disinfection at the same time. But not every type of disinfection.
Chlorine -- 50 ppm in water between 75-100 F (7 seconds)
Advantages -- effective on a wide variety of bacteria; highly effective;
not affected by hard water salts; generally inexpensive.
Disadvantages -- corrosive, irritating to the skin,
effectiveness decreases with increasing pH of solution;
deteriorates during storage and when exposed to light;
dissipates rapidly; loses activity in the presence of organic matter.
are compounds that reduce the surface tension. They are amphiphilic surface active agents possessing both hydrophilic andhydrophobic moieties.