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General properties (chemical characterstics) of fat soluble vitamins – A,D,E, and K Are not easily destroyed by the ordinary cooking methods Are stored in the body (although an excess intake can lead to toxicity and is a called hypervitaminosis) They Continue reading Fat Soluble Vitamins
It is a group of substances having similar biological activity.The first compound of this group was isolated from alfalfa and other from putrified fish meal.It is essential because of its role in synthesis of prothrombin and other blood clotting factors. Continue reading What are Vitamins
Vitamin E (Tocopherol) Chemically vitamin E designates the group of compounds (tocol and tocotrienol derivatives) which exhibits qualitatively the biological activity of alpha tocopherol. Chemical characterstics of vitamin E Biological activity associated with vitaminE is exhibited by four compounds designated Continue reading Vitamin E
General properties( chemical characterstics)Â of water soluble vitamins- B group vitamins and Vitamin C They are affected by preparation practices, e.g. if the water in which the food is cooked isthrown away can cause the loss of these vitamins( through Continue reading Vitamin B
Chemical composition and characterstics of Vitamin C The chemical structure of vitamin C is almost identical to that of glucose. All animals except humans,monkeys and guinea pigs can synthesize ascorbic acid from glucose. Ascorbic acid exists in nature both as Continue reading Vitamin C
Vitamin A is an essential human nutrient. It exists not as a single compound, but in several forms. In foods of animal origin, the major form of vitamin A is an alcohol (retinol), but can also exist as an aldehyde Continue reading Vitamin A
Chemical characterstics of vitamin D There are two biological precursors of vitaminD 7-dehydrocholestrol and ergosterol. Under the influence of uv-rays each undergoes a chemical change yielding vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol). Vitamin D is stable over long periods Continue reading Vitamin D
A vitamin is a vital substance. It is needed in very small quantity for growth and good health.They are vital body regulators. It is a name given to a group of potent organic compounds which are not carbohydrates, proteins or Continue reading Introduction to Vitamins