Food coloring Flashcards

1
Q

What are food color additives?

A

Dyes, pigment or other substances that impart a color when added to food

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2
Q

Colorant that makes cheddar cheese yellow?

A

Anatto

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3
Q

% reasons we use food addatives:

A

1 - offset color loss (natural color in food fades
2 - Correct natural color variations
3 - Reinforces color already in foods
4 - Add variety to wholesome and nutritious foods
5 - makes food more “fun” and “attractive”

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4
Q

Where is anotto found?

A

Fruit of the achiote tree

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5
Q

What are the two classifications of food colorants?

A

1 - Exempt from citification
2 - Certified

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6
Q

What falls under each category? Example?

A

Exempt: natural isolated from plants/animal/mineral (no batch testing required)
Beetroot powder

Certified: manmade artificial coloring (FD&C coloring)

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7
Q

How many approved FD&C approved colors are there?

A

9

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8
Q

What are characteristics of exempt colors?

A
  • water soluble
  • may be derived from a variety of source products
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9
Q

How is a caramel color achieved?

A

carefully controlled heat treatment of carbohydrates in a process called caramelization.

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10
Q

How are exempt colors limited?

A
  • stability
  • limitation in certain applications
  • range of colors
  • limited resources
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11
Q

What is an example of an exempt color? What are the pros and cons?

A

Beta-carotene
Cons: fades on exposure to light
Application: Fuit juices, cakes, desserts, butter + margerine

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12
Q

Rank the frequency of use for each certified colorant and state the percentage:

A

1: Red 40 (40%)
2: Yellow #5 (27%)
3: Yellow #6 (24%)
4: Blue#1, Blue#2, Red#3, green #3 (4% or less)

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13
Q

What is RDI?

A

Recommended Daily Intake : Daily intake level of a nutrient that is considered to be sufficient to meet requirements of 97 - 98% of healthy individuals.

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14
Q

What is RDI used for?

A

To determine the daily value (DV) of foods (printed on labels)

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15
Q

What is ADI?

A

Acceptable Daily Intake: measure of a specific substance that can be taken orally on a daily basis over a lifetime without significant health risk. (additive/residue of vet drug/pesticide)

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16
Q

What is AI based on?

A

Current research with long term studies on animals and observations in humans

17
Q

Are there any health concerns of Red #40 dye?

A

Perhaps hypersensitivity/energy but no carcinogenic or genotoxic

18
Q

What is yellow #5 (Tartrazine) and where is it used?

A

Orange/yellow powder: Variety of food products; cosmetics; meds

19
Q

Where is Red #40 used?

A

Many food products (chips/candy/sodas) and vitamin pills/meds.

20
Q

are there potential health risks of yellow #5?

A

GRAS by FDA.
(not carcinogenic; no effect on development or reproductive behaviors)
Slight side effect on neuro behavior.

21
Q

When is Citrus Red #2 used? Health?

A
  • only allowed for coloring orange skins
  • implicated as carcinogenic in animals (high doses)
22
Q

When is orange B used? Health?

A
  • restricted to surfaces of sausage casings at no levels higher than 150ppm
23
Q

When is Red #3 used?

A

(allowed in food in small amounts 1mg/capita/day)
- maraschino cherries
- sausage casings
- baked goods
- candies

24
Q

What are the safety concerns of Red #3?

A

-1990 banned by FDA from cosmetics and externally applied drugs.
- thyroid tumors in animals

25
Q

What is another name for Red #2? What is it’s history?

A

Amaranth - refers to whole family of herbs; originally used by Native American tribes

26
Q

Where is Red #2 used?

A
  • Hotdog casings
  • Ice cream
27
Q

What are the delisted food coloring additives? Why are they delisted?

A

Carcinogenic potential: Red#1; #2; #4 and Yellow #3; #4

28
Q

Why were each of these colors delisted?

A

Red:
#1: hepatocarcinogenic
#2: still used in developing countries (insufficient evidence of toxicology)
#4: originally margarine/butter colorant. Delisted 1974 for toxicity
Yellow:
#3 and #4: Originally used in margarine : delisted 1959 for hepatoxicity

29
Q

revise last page of booklet

A