C1 6.1

C1 6.1 extracting vegetable oil

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How does distillation take place?
Plants are put in water and boiled. The oil and water evaporate together and are condensed. Water and other impurities are then removed.
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What does distillation do?
extracts oil from plants.
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What other way do we extract vegetable oils?
squashing the plant and removing the impurities,
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What is this other process called?
pressing
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What do unsaturated oils contain?
double bonds.
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Why do we harden oil?
To make it suitable for spreading.
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Why are vegetable oils useful in cooking?
They have a higher boiling point and therefore cook quicker and the outside is crispy.
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What are the conditions for hardening?
60 degrees celsius nickel catalyst.
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Why are vegetable oils bad for you?
They clog up blood vessels of your heart.
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Why are vegetable oils (unsaturated) good for you?
They are a source of nutrients (e.g. vitamin E).
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why do unsaturated oils become mostly saturated when hydrogenated?
because the double bonds are broken to add hydrogen.
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What is used to test for double bonds?
bromine water
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What other way are vegetable oils (unsaturated) good for you?
They help keep your arteries clear
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Other cards in this set

Card 2

Front

What does distillation do?

Back

extracts oil from plants.

Card 3

Front

What other way do we extract vegetable oils?

Back

Preview of the front of card 3

Card 4

Front

What is this other process called?

Back

Preview of the front of card 4

Card 5

Front

What do unsaturated oils contain?

Back

Preview of the front of card 5
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