1.02 Identify foodborne contaminates
Microbial contaminants Virus Parasites Microbial contaminants Fungi Bacteria
Foodborne Microorganisms Pose the greatest threat to food safety.
Bacteria Greatest concern to food safety
Temperature Acidity Food FAT TOM Moisture Time Oxygen
Raise or lower food temperature Make food more acidic Raise or lower food temperature Controlling Growth of Microorganism Lower the water activity of food Limit the amount of time food is in the temperature danger zone
Staphylococcal Aureus Shigellosis Salmonellosis Listeriosis Bacteria e. coli Clostridium perfringens Bacillus cereus Vibrio Staphylococcal Aureus Botulism Campylobacteriosis
E.coli Toxin-mediated Bacteria Lives in the intestines of cattle Diarrhea, abdominal cramps, vomiting, may cause kidney failure Toxin-mediated E.coli Bacteria Lives in the intestines of cattle Make sure ground beef is cooked to 155 degrees for 15 seconds and avoid cross contamination
Diarrhea, fever, chills abdominal cramps, vomiting, headaches infection Vibrio Bacteria Oysters
Intoxication Staphlococcus aureus Bacteria Nausea, retching, abdominal cramps, diarrhea, headache Intoxication Staphlococcus aureus Bacteria Protein based salads, reheated food,
Viruses Smallest of the microbial contaminants Hepatitis A, Norwalk virus, Rotavirus Viruses May survive cooking and freezing Clean and sanitize food-contact surfaces, practice good personal hygiene, Use sanitary, chlorinated water source
Hepatitis A Fatigue, headache, loss of appetite, vomiting, jaundice Infection Hepatitis A Virus Shellfish and salads
Parasites Killed by proper freezing or cooking Trichinosis, Anisakias, Giardiasis, Toxoplasmosis Parasites Survival depends on a host Grow natural in some animals
Found naturally in air, soil, plants, animals, water and some foods Mushrooms Fungi Yeasts Molds
Temperature Danger Zone 41 – 135 degrees
Foodborne infections Person eats food containing pathogens which then grow in the intestines Symptoms do not appear immediately
Foodborne intoxication Person eats food containing toxins that cause illness Symptoms appear quickly within a few hours
Foodborne Toxin-mediated Person eats food containing pathogens which then produce illness-causing toxins in the intestines Longest on site