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C3 FOOD ADDITIVES & PRESERVATIVES

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Part 1 of FOOD ADDITIVES AND PRESERVATIVES
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C3 FOOD ADDITIVES & PRESERVATIVES

  1. 1. <ul><li>FOOD PRESERVATIVES & E NUMBERS </li></ul>PART 1
  2. 2. FOOD ADDITIVES Aims To explain why additives are added to food characterize the various types of food additives introduce the E numbers used on food labels
  3. 3. Preservatives <ul><li>What are Preservatives? </li></ul><ul><li>What are traditional preservative? </li></ul>
  4. 4. PROCESSED FOODS <ul><li>What are processed foods? </li></ul>
  5. 5. ANTIOXIDANT <ul><li>What are Antioxidant? </li></ul>
  6. 6. What are flavourings? <ul><li>Is it okay to add flavours to processed foods? </li></ul><ul><li>Yes or No </li></ul><ul><li>Explain why </li></ul>
  7. 7. What are Emulsifiers And Stabilizers? <ul><li>How important are they? </li></ul>
  8. 8. <ul><li>Basic Mayonnaise -To scale this recipe up or down, the ratio is one yolk per cup of oil </li></ul><ul><li>Ingredients </li></ul><ul><li>1 egg yolk a heavy pinch of salt a pinch of sugar a few grinds of black pepper (use white if you don’t want black specks in your mayonnaise) 1 teaspoon vinegar 1 teaspoon lemon juice About 1 cup neutral oil </li></ul>
  9. 9. What are Emulsifiers And Stabilizers?
  10. 10. <ul><li>What are E Numbers? </li></ul>
  11. 11. What are E Numbers? <ul><li>Is it safe to eat processed foods without E Numbers? </li></ul>
  12. 12. YOUR TASK <ul><li>Recap last lesson </li></ul><ul><li>Review Practical </li></ul><ul><li>Which is the best preservative and why? </li></ul><ul><li>Which is the best antioxidant and why? </li></ul><ul><li>Make a note of your observations and results in a table and write an evaluation and conclusion for your investigation. </li></ul>
  13. 15. Investigating Emulsifiers And Stabilizers
  14. 16. <ul><li>Make suggestions for improvement </li></ul>
  15. 18. Practical Activity <ul><li>Discuss practical activity </li></ul>

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