440 lecture questions Flashcards

1
Q

What is an allergy

A

an abnormal response of the immune system to an otherwise harmless food

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2
Q

What substance in food tend to provoke an allergic reaction

A

proteins

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3
Q

What is a food allergy

A

immune system mistakenly believes that a food is harmful

The body releases antibodies and histamine to attack the food

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4
Q

What are some of the top allergies

list in answer

A

soy, egg, wheat, fish, peanuts, milk

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5
Q

What is the allergen threshold measured in

A

mg

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6
Q

What are 3 preventative techniques to avoid an allergic reaction

A
  • total avoidance of the offending food
  • properly labeled ingredients in food packages
  • clean and sanitize food contact surface and utensils completely before different tasks
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7
Q

What is a food intolerance

A

gastrointestinal tract does not produce proper enzymes to break down a food.

Can result in diarrhea or vomiting

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8
Q

What is an option to prevent food intolerance symptoms

A

take enzyme supplements

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9
Q

What are two types of structures that mold can form?

A

mycelium

conidiophore

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10
Q

Give 3 facts about mold mycelium

A

will bury roots into food source
vegetative state of mold
will use roots to absorb nutrients

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11
Q

What type of macronutrients do molds grow on

A

carbohydrates

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12
Q

Which organ does aflatoxin target

A

liver

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13
Q

which organ does ochratoxin target

A

kidney

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14
Q

which organ does fumonisins target

A

esophogus based on rate of esophogeal cancer.

horses and rabbits are susceptible.

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15
Q

What foods are at risk of containing ochratoxins

A

wheat, barley, rye

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16
Q

what foods are at risk of containing aflatoxins

A

peanuts

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17
Q

what foods are at risk of containing fumonisns

A

corn

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18
Q

what are the 3 types of toxigenic molds

A

penecillium
aspergillus
fusarium

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19
Q

what 2 steps can be taken to prevent mycotoxins

A

keep grains and nuts dry

packaging

20
Q

Name 4 ways to properly thaw frozen foods

A
  • in the refrigerator
  • as part of the cooking method
  • under running water (up to 70F in under 2 hours)
  • microwave
21
Q

what are 4 human carried pathogens

A

shigella
staphylococcus aureus
rota like virus
hepatitus A

22
Q

Name the 5 steps to cleaning food contact surfaces

A
remove debris
rinse
detergent
post rinse
sanitization
23
Q

what are the first 3 principles of HAACP

A
  • hazard analysis
  • determine critical control points
  • establish critical limits for critical control points
24
Q

what are the final 4 principles of HAACP

A

monitor CCP
corrective action
record keeping
verification

25
What is the USDA responsible for inspection of - 3 food types - what of those food types
meat, poultry, and egg slaughtering and processing facilities
26
What is the FDA responsible for inspection of
- Any foods that is not meat, poultry, or egg | - prevent adulteration and misbranding
27
what is the CDC responsible for
investigate food borne illnesses | annual summaries on outbreaks
28
what is the difference between food safety and food defense
protection against unintentional contamination (food safety) vs intentional contamination (food defense)
29
What are four regulatory levels that are responsible for food safety
international federal state local
30
What are the spore forming bacteria
clostridium botulinum clostridium perfringens bacillus cereus
31
what are the (5) gram positive bacteria
``` clostridium botulinum clostridium perfringens bacillus cereus staphylococcus aureus listeria monocytogenes ```
32
what mode of infection is clostridium perfringens
intoxication
33
What is the difference between intoxication and toxicoinfection
intoxication - toxins produced in the ingested foods toxicoinfection - foods contain pathogen and produce toxins in intestines
34
which bacteria infect by intoxication
clostridium botulinum - neurotoxins clostridium perfringens - enterotoxins bacillus cereus (emetic syndrome) - emetic toxin staphylococcus aureus - enterotoxins
35
which bacteria infects by toxicoinfection
bacillus cereus diarheal syndrome
36
What are some symptoms of shigellosis 5 total
Bacillary dysentary abdominal pains, fever, vomiting, bloody diarrhea, dehydration
37
What are the gram positive bacteria
``` clostridium botulinum clostridium perfringens bacillus cereus staphylococcus aureus listeria monocytogenes ```
38
what are the 2 life cycles of protozoa
feeding stage - grow and multiply in intestine | resting stage - excrete oocyte in feces
39
What are 2 survival factors of oocytes
resists drying and disinfectants
40
which of the two protozoa are humans the only host A. cyclospora cayetanensis B. cryptosporidium parvum
A cyclospora cayetanensis
41
what are symptoms of cyclospora cayetanensis
explosive diarrhea, annorexia, bloating
42
what are the symptoms of cryptosporidium parvum
severe watery diarrhea
43
what types of foods are cryptosporidium parvum associated with
water, cider, produce
44
what types of foods are cyclospora cayetanensis associated with
vegetables and berries
45
what is anisakis
a fish parasitic worm
46
What are the steps of hazard analysis (4)
- flow diagram - hazard identification (potential pathogen) - risk estimation (severity of organism in the step) - preventative measures