Food

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Across
  1. 3. low grade waste substrates are used to produce higher value protein rich food
  2. 5. prevent chemical reactions taking place that spoil food
  3. 9. a SCP suitable for human consumption
  4. 10. a waste product of cheese industry
  5. 15. the product of the fermentation of lactose by lactic acid bacteria
  6. 17. inhibit the growth of micro-organisms in food
  7. 19. the length of time a food will be safe to eat
  8. 20. a SCP which can be used as animal feed
Down
  1. 1. the type of respiration involved in the manufacture of citric acid
  2. 2. stop food reacting with oxygen in the air
  3. 4. substrate for vinegar production e.g.. beer,cider,wine
  4. 6. mixture of enzymes extracted from the stomachs of young calves
  5. 7. starter culture added to milk to make cheese and yogurt
  6. 8. the result of growing a micro-organism in large quantities
  7. 11. micro-organism involved in vinegar production
  8. 12. the substrate for production of pruteen
  9. 13. enzyme involved in ice cream making
  10. 14. the sugar found in milk products
  11. 16. aspergillus niger produces this antioxidant and acidity regulator which is naturally found in citrus fruits
  12. 18. acetic acid