FNU 203 Lecture Notes - Lecture 8: Short-Chain Fatty Acid, Portal Vein, Lactose Intolerance
1 Nov 2017
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Document Summary
Refined- removed the majority of the fiber that particular grain once had. 45-65% of total calories per day, mostly from whole grains. Helps with glucose levels, reduces heart disease, and helps with gi health. Refined vs. unrefined grains: whole grains- bran, fiber, 100% whole wheat. Does not re-add vitamin e, magnesium, or vitamin b6. Nutrient density- a measure of the nutrients compared to the calories of a food. Galactose- bound to glucose to make a disaccharide. Condensation reaction- joins sugar molecules together; releases water. Hydrolysis reaction- responsible for splitting two sugar molecules apart; adds water to the bond polysaccharides. Not digested by the gi tract but play a significant role in promoting the health of the good bacteria in the lower gi tract. Glycogen- storage form of glucose in the liver and muscles. Insoluble: wheat bran and rye bran, skins of fruit, and seeds. Functional fiber-isolated from a plant source, purified, and then added to a food item.
