Unit 32 Flashcards

Food Safety

1
Q

What are food safety concerns?

A
  1. food borne illnesses
  2. environmental contaminants
  3. naturally occuring toxicants
  4. pesticide residues
  5. food additives
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Signs of food poisoning.

A
  • vomiting
  • bloody diarrhea
  • dehydration
  • fever
  • diarrhea for more than 3 days
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How many foodborne ilnesses have been identified?

A

250

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Who is food posiing severe for?

A
  • weakened immune system
  • certain chronic illnesses
  • pregnant womeb
  • young children
  • old people
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How do you get hepatitis A?

A

from contaminated foor or water that is contaminated with the feces of an infected person

raw or undercooked shellfish from contaminated waters, raw produce, contaminated drinking water or ice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Hepatitis A

A
  • inflammation of liver
  • fatigue, nausea, dark urin
  • onset is 2-7 weeks
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Giardia or ‘beaver fever’

A
  • contaminated water
  • diarrhea is main symptom (sudden onset explosive or chronic)
  • onset is 1- 3 weeks
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Listeriosis

A
  • hotdogs/delimeat, unpasteurized milk, soft cheese
  • gut sympotoms and fever, can trigger brain infection and/or sepsis
  • high death rate in fetus and infants
  • onset is 3-30 days or longer

things that have been recalled:
- silk mil alternatives
- frozen pancakes and waffles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Salmonella

A
  • raw or undercooked eggs and meat, raw dairy, fruits and veggies irrigated with contaminate (sprouts and cantaloupe)
  • gut symptoms
  • onset is 6 hours to 6 days (lasts 4-7 days)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

E.coli

A
  • undercooked ground beef, unpasteurized milk, contaminated water, person to person
  • watery bloody diarrhea, cramps
  • 15% children and elderly develop hemolytic uremic syndrome (can be fatal, permanent kidney damage)
  • onset is 1-8 days (lasts 5-10 days)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Botulism

A
  • clostridium botulinum grows without oxygen
  • botulinim toxin is responsible
  • canned vegetables and meats, honey (bees pick up spores from flowers/soil), oils infused with garlic or herbs
  • onset is 4-36 hrs
  • blurred vision, difficulty speaking, paralysis, can be fatal
  • need antitoxin immediately
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Staphylococcal toxin ‘picnic sickness’

A
  • tuna, potato and macaroni salads, cream filled pastries, meats and poultry, egg products
  • gut symptoms, mild fver
  • onset .5-8 hrs (lasts 24-48hrs)
  • from leaving food out
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are some food safety tips?

A
  1. clean safe kitchen
  2. avoid cross contamination
  3. keep hot foods hot
  4. keep cold food cold (fridge 4-6 degrees, freezer -18- -20 degrees)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Mad cow disease

A
  • caused by prion (from sheep parts fed to cows)
  • small protein that transmits disease when consumed by a similar species
  • transfered to humans when they eat prion infected meat
  • humans develop Creutzfeldt-Jakob disease from contaminated meat (symptoms resemble alzeihmers but prgress faster)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Mad cow disease leads to…

A

inevitable death due to brain damage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What can’t you feed cows?

A

Animal parts that could transmit the disease such as nerve, bone, intestine

17
Q

What causes mercury contamination?

A

fungicides, fossil fuel exhaust, smelting plants, pulp mills and chemical plants

18
Q

T/F: virtually all fish have trace amount of fish have mercury

A

true

19
Q

What types of fish have higher levels of mercury?

A
  • shark
  • swordfish
  • bass
  • lake trout
  • walleye
  • chain pickerel

small fish have lower levels

20
Q

Why should you avoid eating fish with high mercury levels during pregnancy?

A

interferes with fetal brain development

21
Q

What type of fish does health canada say pregnant women should avoid?

A

shark, tile fish, swordfish or king mackerel

22
Q

New additives must prove:

A
  • effective
  • detectable and measurable in product
  • safe
23
Q

Additives must nver had…

A

caused cancer in animal study or human experience

24
Q

What are intentional addittives?

A
  • antimiicrobial agents
  • antioxidants
  • color additives
  • artifical flavours
  • texture and stability
  • nutrient additves
25
Q

Examples of antimicrobial agents.

A

salt, sugar, potassium sorbate, nitrates

26
Q

Examples of antiooxidants

A

vitamin C and E, sulfites, BHA and BHT

27
Q

examples of color additives.

A

carotenoids, caramel, blue 1/2, yellow 5/6

28
Q

Largest artifical flavour additive?

A

MSG

29
Q

What are texture and stability additives used in?

A

gum and pectins

30
Q

What are the 4 nutrient additives?

A
  1. thiamin, niacin, riboflavin, folate and iron in grain products
  2. iodine in salt
  3. vitaim A /D in milk
  4. vitamin C and calcium in juice
31
Q

What are indirect additves?

A

microwave packaging

a high temperatures chemicals and microplastics can migrate into food