Fats And Oils Flashcards

1
Q

What are the classifications of fats and oils

A

Animal
Plant
Marine

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2
Q

What are animal sources usually

A

Saturated

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3
Q

What are plant sources usually

A

Unsaturated

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4
Q

What are marine sources usually

A

Polyunsaturated

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5
Q

What is the nv of protein

A

Butter and margarine contain grace amounts

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6
Q

What is the nv fat

A

Depends of the type, veg oil 99, butter 82

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7
Q

What is the nv of carbs

A

Lacks

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8
Q

What is the nv Vitamins

A

Traces AD

margarine is fortified with A AND D

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9
Q

Vitamins

A

Butter and margarine constrains trace amounts of calcium

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10
Q

What is the water nv

A

Depends on fat content

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11
Q

Dietetic value

A
Vitamin a and d 
Protective layer 
Fullness 
Energy and heat 
Polyunsaturated fat increases HDLs
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12
Q

Manu fracture of veg oil

A
Seed prep 
Oil extraction 
Refined
Bleached 
Filtered 
Deodorised
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13
Q

What happens during seed prep

A

They are cleaned and grounded and crushed through rollers and heat treated

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14
Q

What happens during oil extraction

A

By pressing the seeds or by adding a solvent

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15
Q

What happens during refined

A

Degumming : hot water followed by centrifuge causing impurities to fall to the bottom

Neutralising: mixing oil with alkali which changed free fatty acids into insoluble compounds

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16
Q

How is the oil bleached

A

Fullers earth

17
Q

What are the stages in the production of margarine

A
Oil extraction 
Hydrogenated 
Ingredients added 
Emulsified 
Churched
Weighed 
Packaged
18
Q

How is the oil extracted for margarine

A

Chosen for desired finish and refined

19
Q

What happens during hydrogenation

A

Hydrogen gas is forced through the double bond in the presence of a nickel catalyst converting it semi solid

20
Q

What other ingredients are added to margarine

A
Water 
Salt 
Colouring 
Skimmed milk 
Flavouring 
A d
21
Q

What happens during emulsification of margarine

A

Lecithin is added to prevents separation from the fat and water

22
Q

How is the margarine churned

A

A voyager churns it until the emulsification has formed and it is at the desired consistency

23
Q

Types of margarine

A

Block

Soft

24
Q

What is block margarine usually made of

A

Veg oil but can include animal and marine oils

25
What is block margarine made for
Baking and frying
26
What is block margarine sold in
Foil
27
What is soft Marg made from
Veg oil
28
Which has more fat block or soft margarine
Block
29
What is soft Marg used for
Baking
30
How much fat does low fat dairy spreads contain
38-40
31
How much fat does functional dairy spreads have
60
32
Guidelines for storing fats
4 degrees | Away from air light and odours
33
Culinary uses
``` Flavour potatoes Emulsions : mayo Aeration Shortening Acting staling ```