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Food tecnology

  1. ● assist with growth and repai rof the body ● can aerate a mixture ● can coagulate
  2. ● are needed to give the body energy ● there are two types of carbohydrate starch and sugar.
  3. ● help to provide concentrated sources of energy and help to insulate the body in cold weather ● there are saturated and polyunsaturated fats
  4. VITAMIN NEED FOR SOURCES Vitamin A - good vision - green and yellow vegetables - healthy skin - dairy products - growth Vitamin B - release of energy from foods - breads - milk - healthy skin - eggs Vitamin B12 - red blood cells - meat - milk - fish Vitamin C - healthy skin - fruit - protects cells - vegetables - helps absorb iron Vitamin D - helps absorb calcium - margarine - strong teeth and bones - oily fish
  5. Calcium healthy teeth and bones Iron formation of red blood cells Other minerals that the body needs include potassium, sodium, magnesium and zinc Eggs are a source of calcium and iron.
  6. ● Aerating ● Coagulation ● Preserving ● Tenderising ● Thickening
  7. ● Binding ● Bulking ● Enrobing ● Enriching ● Fermentation ● Flavouring ● Shortening ● Stabilising ● Setting
  8. Icing Browning Glazing
  9. ● Solution ● Colloid ● Emulsion ● Foam ● Gel ● Suspension
  10. Natural additives Artificial additives
  11. Microorganisms in food are bacteria, mould and yeast chilling freezing reheating
  12. Brief Market research Design specification
  13. Sensory testing : ranking test rating test profile test Manufacturing specification Quality control
  14. The most used materials in food packaging are plastics and MAP (Modified-Atmosphere Packaging)
  15. Material Advantages Disadvantages Uses Glass - reusable - fragile - baby foods - heat-resistant - safety issues - salad cream - recyclabe - heavy - pickles - keeps shape - low cost Metal - recyclabe - may react with food - soup cans - lightweight - take-away containers - impermeable - bottle tops - withstands heat processing Card/paper - easy to print on - not water-resistant - fruit-juice cartons - cheap to produce -biodegradable - recyclabe -easily damaged - egg boxes - can be moulded - can be coated - lightweight Other materials
  16. Primary packaging Secondary packaging Transit packaging
  17. Food Labelling Regulations
  18. Social factors Environmental factors Ethical factors
  19. ● Calorie controlled ● Coeliac disease ● Diabetes ● Lactose intolerance ● Nut allergy ● Vegetarian ● High fibre
  20. One-off production Batch production Mass production Continuous-flow production
  21. CAD is used for: ● Nutritional analysis software ● Simulate changes to inputs and processes ● Calculate costs and amounts ● Packaging design and advertising decisions ● Sensory profile software ● Production flowcharts
  22. Uses Advantages Disadvantages - monitor temperature - more consistent results - expensive to set up - reduces labour costs - monitor weight - improves accuracy, reducing waste - needs skilled operators - check ph - faster for high- volume production - control conveyor belt speed - improved saftey and hygiene - can be slower for one-off or low-volume production - monitor quantities of ingredients - easier monitoring
  23. Name Purpose Electronic scales Weigh food accurately Depositor Put exact amounts of ingredients into different containers at the same time Mandolin Slice food portions equally Food processor Blends and mixes ingredients Hand blender Used to purée food eg in soups Dough hook Mixing and kneading dough Electric whisk Whisks ingredients saving time and effort Cutters Ensure food is the same shape and size eg biscuit cutters Temperature probe Check temperatures in high risk foods Tunnel oven Ensures continuous even cooking using a conveyor belt Deck oven Cooks a batch of several foods at the same time Boiling vats Huge drums used for cooking liquids eg soups, chocolate Date-stamping machine Label packaged food with a date stamp
  24. Components Advantages Disadvantages - pizza bases - ensures consistency - less reliable - one manufacturer depends on another - saves time and effort - components can be more expensive - ready-made sauces - less skill required by staff - sensory qualities may not be as good as fresh ingredients - ready-made cake mixes - less specialist equipment needed - sensory qualities may not be as good as fresh ingredients - frozen pastry - can reduce costs - time needed for ordering and delivery - ready-made icing - components bought in bulk - stock cubes - reduces risk - high risk foods prepared elsewhere
  25. Hazard analysis: ● Biological hazard ● Physical hazard ● Chemical hazard Personal hygiene
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