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258026
Plant oils and their uses
Descrição
Chemistry Mapa Mental sobre Plant oils and their uses, criado por cerys.williams em 07-10-2013.
Sem etiquetas
chemistry
chemistry
Mapa Mental por
cerys.williams
, atualizado more than 1 year ago
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Criado por
cerys.williams
mais de 10 anos atrás
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Resumo de Recurso
Plant oils and their uses
Vegetable oils
Obtained from plants
They are used in margarine
Found in some seeds, nuts and fruits
The plant is squashed and crushed to extract the oils
Molecules of vegetable oils consist of glycerol and fatty acids
In cooking
Vegetable oil has a higher boiling point then water
Food is cooked quicker I vegetable oil then in water
Diet
Vegetable oils are a source of energy in the diet
People who eat to much can become overweight
Fatty acids in some oils are saturated
These are solid at room tempreture and are known as Vegetable fats
These have single bonds between the carbon atoms
Fatty acids in some oils are unsaturated
These are liquid at room tempreture and are useful for frying
These have double bonds between the carbon atoms
These are healthier
Emulsions
If oil and water is shaken together it mixes to form an emulsion
milk, ice cream, salad cream, mayonnaise, margarine, butter, skin cream, moisturising lotion
Anexos de mídia
structure_of_vegetable_oil.gif (image/gif)
fatty_acid.gif (image/gif)
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