Fats and oils
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?- Created by: lilyanticoni
- Created on: 07-11-16 21:20
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- Fats and Oils
- What are fats and oils?
- Fats in the diet is important for health and wellbeing
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- Both have similar chemical structure and functions
- 'Lipids' is a general term for both fats and oils
- Fats are high in calories
- Excess fat in the diet is stored as body fat
- Our fat intake should be no more than 35% of our total energy intake
- Fats in the diet is important for health and wellbeing
- Uses of fats and oils
- Adds colour and shine
- Gives shortening ability to a mixture and changes the texture
- Fats give shortbread its characteristics crumbly and short textured
- Oils from an emulsion with liquids such as vinegar e.g salad dressing
- Acts as a cooking medium for roasting foods e.g Chicken
- Adds distinct flavours and odours to foods
- Prevents lumps of flour forming in a sauce
- Saturated fats
- Mainly found in animal products
- Are solid at room temperature
- Too much saturated fats in the diet has been linked to high blood cholesterol
- Leading to an increased risk of coronary heart disease, diabetes and obesity
- Types of fat
- Suet - made from the fat that protects animals vital organs
- Lard - made from pigs fat
- Butter - made from churning cream
- Margarine - made from vegetable oils blended with additives and emulsifiers...
- Oils - from pressed seeds
- Low fat spreads- are emulsions of vegetable oils usually hydrogenated and water
- Functions of fat in the diet
- Fat is a source of energy
- Fats provide fatty acids which are essential to the structure and function of body cells
- Helps insulates the body against the cold
- Source of vitamins A,D,E and K
- Sources
- Plants- avocado, peanuts sesame seeds
- Fat comes from both plants and animal sources
- Animals- meat, lard , tuna and butter
- Unsaturated fats
- Mainly come from vegetable sources
- liquids at room temperature
- Main oil used in cooking are:
- Corn
- Rapeseed
- Olive oil
- Peanut
- Sunflour
- What are fats and oils?
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