1. OBJECTIVES 1. Which substances are additives;
2. Importance of additives for food technology;
3. Classification.

2. What are food additives? 2
What are food additives?
They are substances, or ingredients which are added to food products for maintaining their stability.
Additives are artificial or natural substances, added to food, for microbial and chemical stability of foods to delay or even stop food rancidity.

3. ADDITIVES 3
Why use Additives ?
Food produced on the large scale that is needed to supply supermarkets and other food shops has to be transported and stored before it is consumed .
It has to stay in top condition over a much longer period of time than home cooked food.
Additives are used so that these foods still have a consistently high quality.

4. Functions of food additives:5
Functions of food additives:
Improve the taste or appearance of a processed food
Eg: beeswax –glazing agent is used to coat apples.
Improve the keeping quality or stability of a food
Eg: sorbitol –added to mixed dried fruit to maintain moisture level and softness of the fruit.
Improve shelf life or storage time
Eg: SO2 added to sausage meat to avoid microbial growth.
Ensure nutritional value.
Maintain uniform quality and to enhance quality parameters like flavour, colour etc., in large scale production.

5. Must perform their intended function.
ADDITIVES 6
FIVE GENERAL CRITERIA OF FOOD ADDITIVES
Must perform their intended function.
Must not deceive the consumer or conceal defects.
Cannot considerably reduce nutritional value.
Cannot be used to achieve an affect that could be gained by good manufacturing practices.
A method of analysis must exist to monitor the additive.

6. ADDITIVES 7
(Marcus Porcius Cato DE AGRI CULTURA)

7. ADDITIVES 8

8. ADDITIVES 9

9. ADDITIVES 10

10. ADDITIVES 12

11. ADDITIVES 13

12. ADDITIVES 14

13. ADDITIVES 15

14. ADDITIVES 16

15. ADDITIVES 17

16. ADDITIVES 18

17. ADDITIVES 19

18. ADDITIVES 20

19. ADDITIVES 21

20. ADDITIVES 22

21. ARE FOOD ADDITIVES SAFE TO CONSUME?23
ARE FOOD ADDITIVES SAFE TO CONSUME?

22. GOOD LUCK WITH FOOD CHEMISTRY!
CONCLUSIONS
Is Food Chemistry funny and interesting? 24
GOOD LUCK WITH FOOD CHEMISTRY!