Foods and Nutrition 1030E Lecture Notes - Lecture 10: Branched-Chain Amino Acid, Carbohydrate Metabolism, Thiamine
20 Oct 2015
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Document Summary
Which nutrients contain energy? (fats, carbs, proteins) Are necessary for obtaining energy from macronutrients. Often function as coenzymes (primary role of b-complex vitamins) Apathy (failure to respond emotionally to external stimuli; indifference) Carbohydrate metabolism and metabolism of branched chain amino acids (leucine, valine, isoleucine) Enriched cereals and whole grains are good sources. Beriberi: deficiency of thiamin resulting in muscle wasting and nerve damage (dry) and edema (wet), lungs, cardiovascular system, we see beriberi if unenriched processed grains are primary food source (white rice), wernicke- Korsakoff syndrome- confusion, lack of memory associated with increased alcohol and decreased food intake, treated with lipid soluble, thiamine derived products, so not excreted as quickly, neurologically based so could lead to death. Involved in redox (oxidation-reduction) reactions in fat and cho metabolism. Fmn= flavin mononucleotide; fad= flavin adenine dinucleotide. Fad works with the antioxidant enzyme glutathione peroxidase (hydrogen peroxide) Milk is a good source of riboflavin; yogurt; cereals.
