Food Preservative Flashcards
State the 7 types of food preservative
- Preservative
- Flavouring
- Dye
- Emulsifier
- Stabilizer
- Thickener
- Antioxidants
State an example of food preservative and the food that comes with it.
Benzoic acid: Tomato Sauce Salt: Preserve fish Sugar: Jam Sodium nitrate, Sodium nitrite: Sausages, petty Sulphur dioxide: Soft drinks
What is the function of antioxidants?
- Prevent food from becoming rancid
- Slow down the oxidation of fats in food
State the examples of food antioxidants and the food that comes with it.
- Citric acid: Fruit juice, cake
- Tocopherol: Vegetable oil
State 3 examples of food flavouring.
- example
- food
- side effect
- Monosodium glutamate(MSG): Soap, meat
: enhance natural flavour of food
: Thirsty
-Aspartame, stevia, sorbitol: Frozen dessert( sweeten the food)
-Ethyl butanoate: cake, ice cream ( artificial flavouring)
What are the function of flavouring agent?
- to enhance the natural flavour of food
- To add fragrants
- to replace seasoning that are expensive
How does thickener helps in food preservative?
- It improves the consistency of food by giving it a smoother texture
State 3 examples of food thickener.
- Acacia gum : Chewing gum. ice cream
- starch; puddings, pearl in milk tea
- gelatin, xanthan gum: Gummy bears
Stabilisers are use to give uniform and smooth texture. State some examples of stabilisers and the food that uses it.
- Acacia gum: Ice cream, marshmallow
- Gelatin: Gummy bears
What is the function of emulsifier?
- mix two insoluble substances together
What are the example of emulsifier?
- Lecithin: Chocolate, ice cream, butter
- Monoglycerides, Triglycerides: peanut butter
What is added in food to restore the natural colour of food to make appearance look more attractive?
- Dyes
- Azo
- Caramel
- Triphenyl
