《食品专业英语》5食品专业英语课件5-food chemistry and nutrition.pptxVIP

English for Food Speciality;Food Basics: Nutritional Elements of Food;Introduction;;Nutritional Elements of Food;;Fats: They contain fatty acids and glycerol. If a molecule of fat has all its carbon atoms bonded to hydrogen atoms, it is known as a saturated fat. In case, some of its carbon atoms are doubly bonded to each other, it is an unsaturated fat. [3] Saturated fats are solids while unsaturated fats are liquids. Fats disintegrate forming fatty acids and glycerol. [4] Fatty acids are an essential dietary need while glycerol is used to produce glucose. This makes fats the energy stores of our body. Apart from this, they act as a buffer for diseases, they maintain body temperature and assist the functioning of cells. [5] Fats act as solvents for vitamins A, D, E and K. Body can absorb these vitamins only with the help of fats. Nuts, oil and butter contain fats. Fats are also responsible for healthy skin and hair.;Vitamins: Vitamins work like hormones. They regulate cell and tissue growth. They are vital nutrients. Each of the vitamins if consumed in amounts less than those required by the body,;Vitamin B comes in different forms such as B1, B2, B3, B5, B6, B7, B9 and B12. Rice bran is a major source of vitamin B1 while B2 is found in eggs. Liver provides other forms of this vitamin. B6 plays a role in protein metabolism and formation. It is necessary for the development of a healthy immune system. It plays a crucial role in fertility. Vitamin B12 is important for proper functioning of the nervous tissue. B1 with the chemical name thiamine is responsible for neural function and carbohydrate metabolism. It is necessary for healthy mucus membranes. B2 is instrumental in the maintenance of normal vision and healthy skin. It is a coenzyme used in metabolism of energy. Deficiencies of vitamins B6 and B12 may lead to Anemia. Deficiency of B9 in pregnant women leads to birth defects in children.;Vitamin C is an antioxidant. It helps maintain