Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
6 Cards in this Set
- Front
- Back
|
what are the functions and types of food additives? |
they are added to improve colour, flavour, texture or taste of food, some help to increase shelf life and nutritional additives increase nutritional content. types : natural food additives and artificial food |
|
|
what are natural food additives? |
they are produced from natural sources like animals and plants examples : papain, honey, herbs and spices |
|
|
what are artificial food additives? |
they are produced from synthetic chemicals and are specified under Food Regulations, administrated by Agri-Food and Veterinary Authority of Singapore to ensure safety of food examples : saccharin, tartrazine and sodium nitrite. |
|
|
what are the types of additives? |
they are preservative , emulsifying agent, flavouring agent, gelling agent , stabilising agent , colouring agent , sweetening agent and nutritional additive |
|
|
what are the functions of each additive? |
preservative : 1. prolong shelf life example : sodium nitrite example of food : cured meat 2. prevent discolouration from oxidation example : antioxidant example of food : cheese spread 3. inhibiting bacterial growth example : acid example of food : pickles 4. preserves food from bacteria in concentrated salt and sugar solutions example : salt and sugar example of food : salted fish and soft drinks emulsifying agent : prevents oil and water from separating and give a smooth, creamy texture example : pectin example of food : salad creams flavouring agent : enhance flavour of food example : monosodium glutamate example of food : soups Gelling agent : gives texture to food example : agar example of food : puddings Stabilising agent : maintain the quality of food example : guar gum example of food : cakes Colouring agent : enhance appearance of colours or replace colours lost during processing example : tartrazine example of food : drinks Sweetening agent : makes food sweet without sugar example : saccharin example of food : diet soft drinks Nutritional additive : increases variety of nutrients example : vitamins A and D example of food : margarine and milk |
|
|
what are the advantages and disadvantages of food preservatives? |
advantages : improve colour, flavour, texture or taste of food disadvantages : large amounts of certain food additives may cause certain cancers examples : sodium nitrite - colorectal cancer , increased hyperactivity sodium bisulphite - allergic reactions like headache, breathing difficulties |
