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Microorganisms
Small, living organisms that can only be seen through a microscope
Pathogen
a disease -causing microorganism
4 most common types of pathogens that contaminate food
Viruses Bacteria Parasites Fungus
Pathogens cause ____ without changing the appearance, odor, or taste of food
Illness
____- Implies decay or quality issue
Forborne
Most common of the 4 major pathogens
Viruses
Pathogens may be ingested via the-
Fecal- Oral Route
Define FAT TOM and what the letters stand for
Six conditions that pathogens need to grow. Food Acidity Temperature Time Oxygen Moisture Six conditions that pathogens need to grow. Food Acidity Temperature Time Oxygen Moisture
What is the temperature danger zone?
41-135 F (5-57 c)
Define Cross-contamination
when microorganisms are transferred from one surface or food to another
Define contaminant:
any substance not normally present in food
Define Psychrophilic (bacteria)
Can grow in fridge Optimal growth under 20 'C
Define Mesophilic (Bacteria)
Prefer 68-113 *F for growth
Define Thermophilic (Bacteria)
Grow at temps greater than 40 'C heat loving
Methods for reducing moisture present in food (3)
sugar salt dehydration
Lag phase-
Bacteria numbers are stable and are preparing for growth
log Phase
Bacteria can double approximately every 20 minutes
Stationary phase
number of cells living and dying is equal
Death phase
The number of cells dying is greater than the number of cells being produced
How to prevent bacteria
Time and Temperature control
Bacillus cereus found in
Diarrheal: Meats, milk, vegetables, fish Vomiting: Rice products, starchy foods, food mixtures like casseroles, sauces, puddings, soups, pastries
what are the two types of bacillus cereus illness
vomiting diarrheal
How to prevent Bacillus Cereus
Cook to minimum internal temp hold food at correct temp Cool food correctly
Listeria monocytogenes found in
DELI MEAT, unpasteurized dairy products (cheese), raw meat
Listeria monocytogenes symptoms for pregnant women and newborns
Women-Miscarriage Newborns-Sepsis, pneumonia, meningitis
Listeria monocytogenes prevention
throw away expired food cook raw meat to required internal temp prevent cross contamination avoid unpasteurized dairy
The smallest simplest form of life
Virus
What causes Hemolytic Uremic syndrome?
O157:H7 E. coli
raspberries
Cyclospora Cayetanesis
Explosive Diarrhea
Clostridium Perfringens
Commonly mistaken for appendicitis
Yersinia Enterocoliticus
Canned products (especially if home-canned)
clostridium Botulinum (Botulism)
Peanut butter
Salmonella
YOU are the source
Shigella
Gastrointeritis, Septicimia, skin lesions
Vibro Vulnificus
Projectile vomiting
Staphylococcus Aureus
May cause Guillian Barre Syndrome
Campylobacter Jejuni
Commonly occurs on cruise ships
Norwalk Virus
May result in the stillbirth or abortion of fetuses
Listeria Monocytogenes
Animal Feces (especially cats)
Toxoplasma Gondi
Most common foodborne illness in Japan
Vibro Parahaemolyticus
Roundworm found in pigs, rats, bears, and walrus
Thrichinella Spiralis
Drinking water contaminated with run-off from farms or slaughterhouses
Cryptosporidium Parvum
Poorly prepared sushi
Anisakis Simplex
Sources include salads and other vegetables washed with contaminated water
Giardia Duodenalis
Cannot be on premises of foodservice operations: Must be reported to health department
Exclusion
Sources include cereal crops such as rice or potatoes
Bacillus Cereus
Typhoid Mary was a carrier of this
Salmonella Typhi
Jaundice
Hepatitis A
Found in the intestines of cattle and in infected people
0157:H7 E. Coli
0157:H7 E. Coli found in-
Ground beef- raw or undercooked
Exception to the rule- one person can constitute an outbreak
Clostridium Botulinum
Shigella only infects
Humans
Shigella is frequently found in water polluted by-
feces
Staphylococcus is commonly linked with which food
deli meat
Mesophilic temperature range
68-113*F
Preventative measures for staphylococcus
wash hands after touching hair, face, and arms
Halophilic-
salt loving
Salmonella Typhi incubation period
3 weeks
causes 95% of seafood related deaths in the U.S.
Vibro Vulnificus
wound infection with flesh eating bacteria
Vibro Vulnificus
illness that is not cleanliness related, but simply present
Vibro Vulnificus
Flies can carry this illness
Shigella
Fungi prevention
Throw it out
Viruses can be transferred from-
person-person, people-food, people- food contact surface
Are viruses destroyed by normal cooking
No
Are viruses complete cells
No
Do viruses reproduce in food?
no
hepatitis A incubation period
10 to 50 days
Viruses contaminate-
food and water supplies
Commonly associated with under cooked poultry
Campylobacter Jejuni
Can parasites be killed by proper cooking of freezing
Yes
Can parasites grow in food?
No, they live inside of a host
Can Anisakiasis parasites be killed by marinades?
No
Can be an issue at day cares or nursing homes
Giardia Duodenalis
Most commonly affects fetuses
Toxoplasma Gondi
Cross-contamination
occurs when microorganisms are transferred from one surface or food to another
Five most common risk factors for foodborne-illness
1. purchasing from unsafe sources 2. failing to cook food adequately 3. Holding food at incorrect temp (time/temprature abuse) 4. using contaminated equipment 5. poor personal hygiene
5 kinds of chemical hazards of special concern to foodservice manager
Pesticides Contamination of food w food service chemicals Use of excessive quantities of additives, preservatives, & spices Acidic action of food w metal-lined containers Contamination of food with toxic metals
Tin usually associated with-
Acidic foods being held in tin containers
Zinc poisoning
usually associated w high acid food in galvanized containers -Italian food -Tomatoes -Lemonade -alcoholic beverages
Zinc symptoms
pain in mouth, throat, abdomen, diarrhea, vertigo
Cross contact
When allergens are transferred from food containing an allergen to food served to the customer.
Anaphylaxis
A severe allergic reaction that can lead to death
Food Allergen
A protein in a food or ingredient that some people are sensitive to
The big 5
Shigella Salmonella Shiva toxin producing E.coli Hepatitis A Norovirus

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