NUSCTX 10 Lecture Notes - Lecture 16: Folic Acid, Decarboxylation, Vitamin B12
1 Nov 2016
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Document Summary
Fortification: process of adding nutrients to goods. The added nutrients are generally not found in the food or are added in much larger amounts. Enrichment: adding nutrients back to foods that have lost nutrients to processing. Another source of vitamins in the modern diet. Can contain some combination of vitamins, minerals, herbs, botanicals, amino acids, enzymes, or extracts. Cannot replace the benefits of a diet containing a variety of foods. Vitamins must be absorbed by the body in order to perform their functions. 40-90% of vitamins are absorbed in the small intestine. Water-soluble vitamins may require transport molecules or specific molecules in the gi tract. Some vitamins are absorbed in inactive provitamin of vitamin precursor forms that must be converted into active forms by the body. The vitamin combines with a chemical group to form the functional coenzyme (active vitamin) The functional coenzyme combines with the incomplete enzyme to form the active enzyme.
