Flashcards
Chemistry 6 Extracting Vegetable Oil Core GCSE AQA
Flashcards do conjunto (18)
- 1How is Vegetable extracted from and how is it extracted?Seeds, nuts and fruits by passing distillation
- 2What does vegetable oil provide?Nutrients and lots of energy
- 3Name two things vegetable oil is used in?Food ➟ Biofuels
- 4What does unsaturated oils contain?Carbon double bonds (C=C)
- 5What does unsaturated oils do to bromine water?Decolourise
- 6Why are vegetable oils useful in cooking?They have high boiling points
- 7Name 4 things cooking in oil does?Increases the energy content ➟ changes the flavour ➟ Changes the colour ➟ changed the texture of the food
- 8How is Vegetable oil hardened?By reacting them with hydrogen at 60°C with a nickel catalyst.
- 9What uses does hardening have/Makes the oils solid at room temperature so they are suitable for spreading
- 10What does not dissolve in water?Oils
- 11What does water and oil produce?Emulsions
- 12What is a common oil used in emulsionsVegetable Oil
- 13What does Emulsifiers do?Stop water and oil from separating into layers
- 14What are the two molecules that make Emulsifiers?Hydrophobic and Hydrophillic
- 15What does vegetable oil provide?Energy and Nutrients
- 16What is vegetable oil better for health than?Saturated Fats
- 17What does Emulsifiers Improve and how?The texture of foods enabling the water and oil to mix.
- 18What is more tempting and palatable due to Emulsifiers?Fatty Foods
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- GCSE Chemistry FlashCards sobre Chemistry 6 Extracting Vegetable Oil Core GCSE AQA, criado por Chloe Roberts em 25-04-2014.
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