FDST 100 Lecture 6: FDSTVitamins&Minerals
8 Feb 2017
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A vital nutrient that an organism requires in limited amounts. Co(cid:373)es fro(cid:373) (cid:862)vital(cid:863) a(cid:374)d (cid:862)a(cid:373)i(cid:374)e,(cid:863) (cid:373)ea(cid:374)i(cid:374)g the (cid:862)a(cid:373)i(cid:374)e of life(cid:863) Needed in limited amounts to sustain life and prevent certain diseases. Identified by their biochemical activity, not their chemical structure. Enzyme cofactors or coenzymes (b complex vitamins) Can be categorized as fat- soluble (4) and water-soluble (9) Vitamin a: vision, infection resistance, only found in animals, some foods do contain carotene, formed by the consumed yellow pigments, deficiency. Vitamin d: normal tooth and bone development, can make by converting sterols and uv light, deficiency. Antioxidant against polyunsaturated fatty acids: deficiency. Vitamin k: blood clotting, synthesized by bacteria in intestine, can be destroyed by antibiotics, deficiency. Stable to heat in acid foods, less stable in neutral and alkaline foods: deficiency. Beriberi (numbness hands/ feet, muscle function, swell legs) Vitamin b2 (riboflavin: oxidation and reduction of materials, sensitive to light, deficiency. Vitamin b3 (niacin: regulation of reduction reactions.
