Consumer Concerns About Food & Water Flashcards

(44 cards)

1
Q

What are the 4 most common causes of food borne illness?

A
  1. Listeria monocytogenes
  2. Norovirus
  3. Salmonella
  4. E coli
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2
Q

Where is most listeria found?

A

Deli meats because it will continue to grow in 4 degree temperatures(fridge)
-transmitted by contact

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3
Q

What is unsafe food?

A

Food that has been contaminated with a harmful substances ethat causes illness or injury when eaten

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4
Q

What are the 3 categories of food contaminants?

A

Chemical
Biological
Physical

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5
Q

How does food spoil?

A

Deterioration of food is due to naturally occurring enzymes and microorganisms that colonize the food
-some micro-organisms might make you sick and others not

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6
Q

What are examples of how food spoils?

A

Fruits and meats turn brown
Milk curdles
Veggies wilt
-texture, takes and smell change as well

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7
Q

What causes a food borne illness?

A

Symptoms or illness from food/water that contains an infectious agent, a poisonous substance or a protein (altered protein) that causes an immune reaction

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8
Q

What is a food borne infection?

A

eating foods contaminated by infectious microbes

  • salmonella and listeria
  • symptoms: stomach cramps, fever, vomiting, diarrhea
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9
Q

What is a food intoxication?

A

Eating foods contaminated with natural toxins or microbes that produce toxins
-staph, c bot.

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10
Q

Why is staph troublesome?

A

You can not kill the toxin with heat, it is heat resistant

-whereas c bot is

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11
Q

What strain of e coli causes illness?

A

0157: H7

- water, raw meat, unpasteurized milk and juice, uncooked fruits and veggies, bean and alfa alfa

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12
Q

How do you prevent e coli contamination?

A

Thoroughly cook meat

Avoid contamination

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13
Q

Where do you find listeria?

A

Raw veggies, lunch meats, soft cheese and unpasteurized milk

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14
Q

Where are you mot likely to find staph?

A

Cream and cream filled backed goods, poultry+eggs, dressing, gravy, mayo sandwiches and salads
-contaminate through skin, cuts, noses/throats

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15
Q

Where would you find C bot?

A

Improperly canned food, meat and fish, garlic in oil, honey

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16
Q

How do you prevent the spread of c bot?

A

Properly can foods
Cook food properly (boiled for at least 10 mins)
Dont give honey to children who are <16months

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17
Q

How can c bot survive in cans?

A

Like anaerobic environments and their spores can survive in this environment. Once opened and left at the appropriate temperature

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18
Q

What other things can cause a food borne illness?

A

Virus- Hep A&E, Norwalk virus

Helminths- worms, tape worms, flukes, roundworm
-eggs hatch in host

19
Q

What are some foods to avoid?

A
Raw/unpasturized food
Raw seafood
Raw eggs
Undercooked meat
Raw sprouts
20
Q

Why should we avoid eating raw sprouts?

A

Even if you cook sprouts there is still a chance of contracting the toxin because the toxin is on the inside of the sprout. Once ingested it releases the toxin

21
Q

Why has the transmission of food borne illnesses changed over the years?

A

Changed because of the significant industrialization of agriculture

22
Q

What are HACCPs?

A

Hazard analysis critical control points.

-Industry control points where things could go wrong and these steps are highly regulated

23
Q

What are municipalities trying to do interms of reducing food borne illness?

A

Public health Inspectors visit all eating and drinking establishments to ensure minimum standards are followed

24
Q

How can consumers be aware of their food safety?

A

Batch numbering
Best before dates
Safety seals and Wrappers

25
From farms to table, how can the food be contaminated at each step?
Farm: Water supply, workers Processing: Improper handling, unclean equipment, temperature for washing, 1 patch contaminating the rest Transportation: Truck temperature, unloading of truck Retail/Consumer: Fridge temp, storage
26
Why have illnesses become more prevalent in terms of food production?
Production has become: - complex - oversight has decreased - mass produce more - ingredients from various sources - possible contamination at every step
27
What is irradiation?
Sterilizing food by exposure to energy waves
28
What would irradiation solve?
``` Controlling mould Sterilizing spices & tea Controlling insects Extending Shelf-life -Destroying bacteria ```
29
What are the benefits of irradiation?
- Not radioactive - No notable change in taste texture or appearance - Minimal vitamin loss
30
Which vitamins are the most vulnerable?
water soluble vitamins and can dissolve in water - degradation continues once picked - O2 easily destroyed - readily dissolve in water
31
What are other resides/toxins found in food?
Mercury(fish) POP (persistent organic pollutant) PCB (polychlorinated biphenyls and dioxins Lead (glazes&ceramic)
32
What is bioaccumulation and how do you avoid it?
When mercury travels up the food chain and accumulates int he digest concentration at the top -avoid by consuming smaller and herbivores fish
33
Why are pesticides bad and how do we control the usage of them?
Leave behind residues Health Canada and CFIA monitors and enforces the rules and regulations on how much is present when consumed by the end consumer
34
Why do people consume organic?
- avoid pesticides&chemicals - Benefiting environment - protecting animals - improving worker safety - safer more nutritious food * not necessarily safer from microbial infection
35
Are organic farmers allowed to use pesticides?
They are but they are not synthetic | -more likely use less
36
What is the Organically grown crop certification?
Certified by CFIA | -synthetic pesticides are not allowed
37
How are additives governed in Canada?
regulated under Food and Drug Act regulations. Goof Manufacturing practic regulations -Health Canada publishes the recalls
38
Why are additives regulated?
Concerned for those with allergies or hypersensitivities | -more regulating he food system and not necessarily for the individual
39
What are intentional food additive?
Salt & Sugar: preservation Nitrates: preserve colour, enhance flavour, protect against bacterial growth Antioxidants: Prevent food oxidation
40
Why are nitrates and sometimes?
They are good for controlling listeria but can be converted into nitrosamines which is a carcinogen
41
What are indirect food additives?
Glass bits, chemicals, micropplastics, dioxins, hormones, methylene chloride (decaffeinated coffee) and antibiotics
42
In 50 years, what will our water status look like?
1/2 worlds population will not have enough clean water to make ends meet
43
What are waters treated with to prevent illnesses ?
chlorine and fluoride (sometimes)
44
what are the sources of drinking water?
Surface: lakes, rivers -easily contaminated but easily reversed Groudwater: Rurale areas and wells -slowly contaminated and less reversible