NFS284H1 Lecture Notes - Lecture 4: Dietary Fiber, Lactase, Microbiological Culture
19 Sep 2018
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Document Summary
Recall physiology fundamentals (in order: digestion & absorption, transport throughout body, metabolism in the cells, elimination of metabolic waste. Large intestine intestinal microflora: the slow movement of components favors the growth of bacteria, bacteria can sometimes breakdown indigestible food components such as dietary fibre, fermentation, products include intestinal gas. Indigestible carbohydrates in fruits & vege: added to foods in purified form (e. g. insulin, support the growth of beneficial microflora. Canadian regulations yogurt choosing: needs specific name of probiotic in the ingredients, permitted health claim, nutrient-function claim. Improve immune function: percent diarrhea, modify colon cancer risk, affect body weight, forming a bio-layer above the surface, secreting the bio- compounds, have systemic effects, go through the colon into the blood stream. Absent in adults: fats, gastric lipase -> for the digestion of the fat. More important in the infant: pancreatic digestive enzymes -> most of the fat digestion in adults.
