NUTR 222 Lecture Notes - Lecture 3: Galactose, Starch, Hemicellulose
27 Sep 2017
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Found in fruit, honey, corn and processed foods. Tuesday, september 26, 2017: galactose, component of lactose, disaccharides, sucrose. Lactose: milk sugar, glucose + galactose, maltose, plant sugar. Gastrointestinal bacteria break some of it down for us. #2: all bers are non digestible but some of them get broken down by bacteria in our gi tract, humans don"t have the enzyme that will break down cellulose. This is a good thing bc they can have lots of health bene ts without the calories: cellulose, vegetables, fruits, legumes. Tuesday, september 26, 2017: bonds, starch has 1,4 alpha. Fiber has 1,4 beta: types of fiber, soluble, pectin, gums, mucilages, can be dissolved in water, when dissolved, form a viscous mixture, can be easily fermented (digested) by bacteria in our colon. The breakdown is good for our colon: delayed transit time (takes you longer to have to poop , sources: barley, beans, fruits, oats.
