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Contamination, Food Allergens, and Foodborne Illness

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Contamination, Food Allergens, and Foodborne Illness – PowerPoint PPT presentation

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Title: Contamination, Food Allergens, and Foodborne Illness


1
Contamination, Food Allergens, and Foodborne
Illness
2
Apply Your Knowledge Test Your Food Safety
Knowledge
  • True or False A person with ciguatera fish
    poisoning often sweats and experiences a burning
    sensation in the mouth.
  • 2. True or False Cooking can destroy the toxins
    in toxic wild mushrooms.
  • 3. True or False Copper utensils and equipment
    can cause an illness when used to prepare acidic
    food.
  • 4. True or False When transferring a cleaning
    chemical to a spray bottle, it is unnecessary to
    label the bottle if the chemical is clearly
    visible.
  • 5. True or False A person with a shellfish
    allergy who unknowingly eats soup made with clam
    juice may experience a tightening in the throat.

3-2
3
Foodborne Contaminants
  • Biological
  • Fish toxins
  • Shellfish toxins
  • Plant and mushroom toxins
  • Chemical
  • Toxic metal poisoning
  • Chemicals and pesticides
  • Physical
  • Metal shavings from cans, staples
  • Fingernails, hair, bandages

4
Biological Toxins
  • These Toxins
  • May be produced by pathogens found on food
  • May occur naturally in plants or animals
  • May occur as a result of an animals diet

5
Major Foodborne Illnesses from Fish Toxins
  • Fish Toxin Illnesses
  • Scombroid poisoning
  • Ciguatera fish poisoning

6
Major Foodborne Illnesses from Fish Toxins

Illness Scombroid poisoning
Toxin Histamine
Associated Food
Common Symptoms
Prevention
  • Reddening of face and neck
  • Sweating
  • Headache
  • Burning or tingling in mouth or throat
  • Purchase fish from approved, reputable suppliers
  • Prevent time-temperature abuse during storage and
    preparation
  • Tuna
  • Bonito
  • Mackerel
  • Mahi mahi

7
Major Foodborne Illnesses from Fish Toxins

Illness Ciguatera fish poisoning
Toxin Ciguatoxin
Associated Food
Common Symptoms
Prevention
  • Purchase reef fish from approved, reputable
    suppliers
  • Predatory reef fish
  • Barracuda
  • Grouper
  • Jacks
  • Snapper
  • Reversal of hot and cold sensations
  • Nausea
  • Vomiting
  • Tingling in fingers, lips, or toes
  • Joint and muscle pain

8
Major Foodborne Illnesses from Shellfish Toxins
  • Shellfish Toxin Illnesses
  • Paralytic Shellfish Poisoning (PSP)
  • Neurotoxic Shellfish Poisoning (NSP)
  • Amnesic Shellfish Poisoning (ASP)

9
Major Foodborne Illnesses from Shellfish Toxins
Illness Paralytic Shellfish Poisoning
(PSP) Toxin Saxitoxin
Associated Food
Common Symptoms
Prevention
  • Numbness
  • Tingling of mouth, face, arms and legs
  • Dizziness
  • Nausea
  • Vomiting
  • Diarrhea
  • Clams
  • Mussels
  • Oysters
  • Scallops
  • Purchase shellfish from approved, reputable
    suppliers

10
Major Foodborne Illnesses from Shellfish Toxins
Illness Neurotoxic Shellfish
Poisoning (NSP) Toxin Brevetoxin
Associated Food
Common Symptoms
Prevention
  • Tingling and numbness of the lips, tongue,
    and throat
  • Dizziness
  • Reversal of hot and cold sensations
  • Vomiting
  • Diarrhea
  • Purchase shellfish from approved, reputable
    suppliers
  • Clams
  • Mussels
  • Oysters

11
Major Foodborne Illnesses from Shellfish Toxins
Illness Amnesic Shellfish Poisoning
(ASP) Toxin Domoic acid
Associated Food
Common Symptoms
Prevention
  • Initially
  • Vomiting
  • Diarrhea
  • Abdominal pain
  • Later (Possibly)
  • Confusion
  • Memory loss
  • Disorientation
  • Seizure
  • Coma
  • Clams
  • Mussels
  • Oysters
  • Scallops
  • Purchase shellfish from approved, reputable
    suppliers

12
Apply Your Knowledge Who Am I?
  • 1. Identify the toxin
  • I accumulate in predatory reef fish
  • I can produce tingling fingers
  • I have been associated with grouper
  • I produce an illness with symptoms that may last
    years
  • 2. Identify the toxin
  • I can cause paralysis and death
  • I am found in certain toxic marine algae
  • I am commonly associated with scallops and other
    shellfish
  • I am found in colder waters such as those of the
    New England Coast

3-12
13
Mushroom Toxins
  • These Toxins
  • Are present in certain varieties of wild
    mushrooms
  • Can cause severe illness
  • Are not destroyed by cooking or freezing

14
Chemical Toxins
  • Toxic Metals
  • Toxic metal poisoning can occur when
  • Utensils or equipment containing toxic metals
    are used to prepare food (especially acidic
    food)
  • Carbonated beverage dispensers are installed
    improperly
  • To prevent this
  • Use food-grade utensils and equipment to prepare
    and store food
  • Have a professional install beverage dispensers

15
Chemical Toxins
  • Chemicals
  • Store away from food, utensils, and equipment
  • Follow manufacturers directions for using them
  • Label them properly if they are transferred to
    new containers

16
Physical Contaminants
  • Foreign objects accidentally introduced into
    food
  • Metal shavings from cans
  • Staples from cartons
  • Glass from broken light bulbs
  • Blades from plastic or rubber scrapers
  • Fingernails, hair, and bandages
  • Dirt
  • Bones

17
Food Allergens
  • Common Food Allergens
  • Milk and dairy products
  • Eggs and egg products
  • Fish
  • Shellfish
  • Wheat
  • Soy and soy products
  • Peanuts
  • Tree nuts

18
Food Allergens
  • Symptoms of an allergic reaction include
  • Itching in and around the mouth, face, or scalp
  • Tightening in the throat
  • Wheezing or shortness of breath
  • Hives
  • Swelling of the face, eyes, hands, or feet
  • Gastrointestinal symptoms
  • Loss of consciousness and death

19
Food Allergens
  • To protect guests with food allergies
  • Be able to fully describe menu items
  • If you are unsure if an item is allergen free,
    urge the guest to order something else
  • Ensure that cookware and utensils used to prepare
    the guests food are allergen free

20
Apply Your Knowledge Spot the Allergen
  • Which of these are common allergens?
  • Eggs
  • Peanuts
  • Beef
  • Bean sprouts
  • Shellfish
  • Milk

3-20
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