Summary of water soluble vitaminsWord

Summary of water soluble vitaminsWord - Summary of...

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Summary of Vitamins: Name plant provitamin active and storage forms? chemistry of act- ive site site of attachment to enzyme? group that is transferred? deficiency condition foods that lead to deficiency? Vitamin A carotenoids β-carotene oxidized by 15-15’- dioxgenase to be- come all-trans retin- ol, oxidized to all- trans retinal (and iso- merized to 11-cis retinal); oxidized to all-trans retinoic acid night blindness, permanent blindess (Xerophthalmia - due to keratinization of cornea), death; birth defects with too much or too little VitA due to poor epithelial differentiation Vitamin D ergoesterol cholecalciferol (D3) - 1,25-di- hyrdoxyVitD; ergocalciferol (D2) - less active than D3 demineralization in bone; infants -- Rickets, adoles- cent-adults -- osteomalacia, middle age-elderly -- osteo- porosis Vitamin K Vit K2 - mena- quinone (unsaturated side chain) Vit K1 - phyl- loquinone (satur- ated side chain) saturated chain of VitK1 can bind to enzyme active sites rare deficiency - synthes-
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This note was uploaded on 12/30/2010 for the course NUTR 3210 taught by Professor Kirkland during the Winter '10 term at University of Guelph.

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Summary of water soluble vitaminsWord - Summary of...

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