They can be used in food as they can be hardened e.g.margarine. They can also be used as fuels
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What three things are vegetable oils found in?
Seeds, nuts and some fruit
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Compare cooking with oil and cooking with water. Foods cooking in oil...
1) Cook faster 2) Have different flavours
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What does 'saturated' mean?
Fatty acids which are saturated only have a single bond between their carbon atoms
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In what stated are saturated oils at room temperature?
Solid
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Some fatty acids are unsaturated. What does this mean?
They have double bonds between their carbon atoms
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What state are unsaturated oils at room temperature?
Liquid
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What two groups can unsaturated oils be divided into?
1) Monounsaturated - one double bond in each fatty acid 2) Polyunsaturated - many double bonds
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Are unsaturated of saturated fats seen to be healthier?
Unsaturated
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What are emulsifiers?
Emulsifiers are substances that stabilise emulsions, stopping them separating out.
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What two different ends do emulsifiers have?
1) Hydrophilic end - 'water-loving' - that forms chemical bonds with water but not with oils 2) Hydrophobic end - 'water-hating' - that forms chemical bonds with oils but not with water.
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Other cards in this set
Card 2
Front
What can vegetable oils be used for?
Back
They can be used in food as they can be hardened e.g.margarine. They can also be used as fuels
Card 3
Front
What three things are vegetable oils found in?
Back
Card 4
Front
Compare cooking with oil and cooking with water. Foods cooking in oil...
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