Food technology ppt


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Powerpoint Presentation showing the main nutrients and their functions.

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Food technology ppt

  1. 1. FOOD TECHNOLOGYNutrition and Functions
  2. 2. FUNCTION OF PROTEIN Main Function: Growth and repair of body cells and tissue Other Functions: Source of Energy, Functioning of Antibodies to resist Infection and Regulation of Enzymes and Hormones Sources:HBV (High Biological Value) Proteins: Meat and Fish, Milk and Cheese, Eggs LBV (Low Biological Value) Proteins: Pulses (beans/peas), Nuts, Bread and Cereals, Vegetables
  3. 3. FUNCTION OF CARBOHYDRATE Main Function: Energy! Sources: Bread and Cereals, Fruit and Vegetables, Pulses, Pastas, Potatoes, Bran, RiceCarbohydrates can be split up into: Sugars Monosaccharides Glucose Fructose Disaccharides Maltose Sucrose Lactose Non Sugars Simple Starch Polysaccharides Cellulose Glycogen Complex Pectin Polysaccharides Gums (additives)
  4. 4. FUNCTION OF LIPIDS Main Function: Concentrated form of Energy which help maintain body temperature and protect Body Tissues and Organs. Other Functions: Formation of Adipose Tissue (used as energy reserve/insulates/protection), Source of Essential Fatty Acids and provide Fat Soluble Vitamins (A,D,E,K) Sources: Meat and Fish, Confectionary, Butter/Lard, Processed Foods, Dairy Products, Egg Yolk
  5. 5. VITAMINSFunctions and Sources
  6. 6. VITAMIN C Function: Works as an antioxidant needed for the formation of Collagen to hold cells together, Healthy teeth, gums and blood vessels, Improves iron absorption and resists infection Sources: Mainly found in Vegetables (Broccoli, Brussel Sprouts, Green and Red Peppers, Cabbage) and Fruit (Lemon, Lime, Pineapples and Strawberries)
  7. 7. FAT SOLUBLE VITAMINS (A,D,E,K) Vitamin A: Needed for new cell growth, healthy skin, hair, and tissues, and vision in dim light.Dark green and yellow Vegetables (Broccoli, Spinach, Carrots, Sweet Potatoes) and Fruit (Apricots) and Animal Sources (Milk/Cheese, Liver, Eggs) Vitamin D: Needed for absorption of Calcium and Phosphate for healthy, strong bones and teeth. Dairy Products (Milk/ Cheese), Liver, Eggs, Salmon, Fortified Margarine. Naturally Sourced from Sunlight!
  8. 8. FAT SOLUBLE VITAMINS (A,D,E,K) Vitamin E: Protects red blood cells and helps prevent destruction of vitamin A and C. Found in Margarine and Vegetable Oil (Soybean, Corn and Safflower) and Green leafy vegetables. Vitamin K: Needed for normal blood clotting and synthesis of proteins found in plasma, bone, and kidneys. Found in Spinach, Lettuce, Cabbage, Cauliflower, Wheat Bran, Organ Meats, Cereals, some Fruits, Meats, Dairy Products, Eggs.
  9. 9. VITAMIN B (B1, B2, B3, B12) Vitamin B1 (Thiamine): Needed for energy metabolism and the proper function of the nervous system. Found in Whole Grains, Soybeans, Peas, Liver, Kidney, Seeds and Nuts. Vitamin B2 (Riboflavin): Needed for energy metabolism, building tissue, and helps maintain good vision. Found in Dairy Products, Lean Meats, Poultry, Fish, Grains, Broccoli, Asparagus, Spinach, and Enriched food products.
  10. 10. VITAMIN B (B1, B2, B3, B12) Vitamin B3: Essential for releasing energy from Carbohydrates, Fats and Proteins. Necessary for healthy skin, nerves and digestive system. Found in Salmon, Chicken Breast, Asparagus, Halibut (fish), Calfs Liver, and Turkey. Vitamin B12: Needed for building proteins in the body, red blood cells, and normal function of nervous tissue. Found in Liver, Kidney, Yogurt, Dairy Products, Fish (Sardines, Salmon, Oysters)