Effects Of Cooking On Meat Flashcards

1
Q

List the effects of cooking on meat

8

A

Protein coagulates

Fat melts

Colour change

Loss of vitamins and minerals

Bacteria are destroyed

Flavour develops

Collagen converts to gelatine

Meat can become overcooked

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2
Q

Explain what happens when protein coagulates during the cooking of meat

A

Protein coagulates at 40-50 degrees which causes meat to shrink

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3
Q

At what temperature does coagulation occur?

A

40-50 degrees

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4
Q

What happens to meat when its protein coagulates?

A

The meat shrinks

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5
Q

Explain what happens when fat melts during the cooking of meat.

A

Fat melts which adds flavour to meat

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6
Q

What does fat melting add to meat?

A

Flavour

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7
Q

Explain the colour change that takes place during the cooking of meat.

A

Colour changes from red to brown due to the denaturation of myoglobin (red pigment) to haematin (brown pigment)

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8
Q

What is the red pigment in meat called?

A

Myoglobin

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9
Q

What is the brown pigment in meat called?

A

Haematin

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10
Q

Explain the vitamin and mineral loss that occurs during the cooking of meat.
(2)

A

Some B-group vitamins are lost, as they are not heat stable

Other vitamins and minerals are also lost, as they as dissolve into the cooking liquid

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11
Q

What vitamins are lost during the cooking of meat?

A

Some B-group vitamins

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12
Q

Why are some B-group vitamins lost during cooking of meat?

A

As they are not heat stable

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13
Q

Other than B-group vitamins, what happens to the vitamins and minerals in meat during cooking?

A

Other vitamins and minerals dissolve into the cooking liquid

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14
Q

What happens to bacteria during cooking?

A

Bacteria are destroyed

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15
Q

What happens to flavour during cooking of meat?

A

Flavour develops

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16
Q

How does flavour develop during cooking of meat?

A

As extractives are released from the meat fibres

17
Q

What does collagen convert into during cooking?

A

Gelatine

18
Q

What converts into gelatine during cooking?

A

Collagen

19
Q

What effect does gelatine have on meat?

A

Gelatine makes meat more digestible as the fibres loosen and fall apart

20
Q

How does gelatine make meat more digestible?

A

As the fibres loosen and fall apart

21
Q

What happens to meat if overcooked?

A

Meat can become tough, rubbery and difficult to digest if overcooked