Soft drinks

Harmful effects of soft drinks.

1. PRESENTED BY, TEENA THANKACHEN PHYSICAL SCIENCE

2. SOFT DRINKS

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4. Most of the juices are liquids in the Colloidal form The drinks does not settle down even after prolonged storage

5. How are the drinks retained as such for long periods of time without settling down? Do you know that some substances are added for this purpose? Discussion points

6. Chemical substances used in soft drinks to prevent the particles from getting settled. Examples Brominated Vegetable Oil Sucrose acetate isobutyrate Glyceryl ester of Rosin STABILIZERS

7. Why chemical substances are added in soft drinks? For colour For smell For taste

8. C hemical substances used in soft drinks to make them attractive CHEMICAL SUBSTANCE JUICE/FOOD MATERIALS TO WHICH IT IS ADDED USE TARTRAZINE Food material Colouring agent[Yellow] ERYTHROSINE Food material Colouring agent[Red] VANILLIN Food material Taste enhancer PHOSPHORIC ACID Soft drinks To give sour taste ALLYL HEXANOATE Food material For fragrance[Pineapple]

9. Chemicals used to prevent damage of food stuffs PRESERVATIVES

10. Chemical substance and its activity CHEMICAL ACTIVITY FOOD ITEM SODIUM NITRATE Kills bacteria Preserved meat PROPANOIC ACID Destroys fungus Bread,cake BENZOIC ACID Destroys fungus,yeast sauce , salad,soft drinks SULPHITES Kills insects and yeast Juice and fruits SORBIC ACID Destroys fungus Cheese ,cake, salad

11. So , does the regular intake of such synthetic drinks cause the entry of harmful chemicals to our body???????

12. Yes, of course………… Regular use of soft drinks cause: Malnutrition Lack of appetite Acidity Tooth decay Financial loss

13. Is it desirable to use preservatives in drinks? Are chemical substances used in fast food,bakery items and packed and tinned food as we see in soft drinks? DISCUSSION POINTS

14. Do not get any nutrition from soft drinks. Regular use of them will affect our health and financial conditions,both personal and the social In hotels chemicals is used to hide the foul smell and bad taste of out dated food Artificial chemicals are added in bakery items and packed foods

15. Chemically ‘MONOSODIUM GLUTAMATE or MSG’ Used to increase the taste and smell of fast food items. Harmful to the body. AGINOMOTTO

16. CAUSES OF MSG Headache Drowsiness Blood pressure Heart attack Damages for the functioning of liver, kidney

17. HARMFUL EFFECTS OF SOFT DRINKS

18. So, say NO to SOFT DRINKS

19. Do you have any doubts?

20. What is meant by stabilizers? What are the purposes for which chemical substances is added in soft drinks? How does the continuous use of soft drinks affect the human body? REVIEW

21. EXTENDED ACTIVITIES Prepare an Assignment about the topic ‘The chemical substances added to food particles and its after effects’.