NUTR 2105 Lecture Notes - Lecture 4: Ketosis, Tooth Enamel, Dental Caries
10 Apr 2017
School
Department
Course
Professor
Document Summary
Carbs simplest form is glucose. we need at least 130g/day. The brain needs glucose, but it cannot store it. We get carbs from pretty much everything but meat and fat. i. e. milk, dairy, vegiges, fruit, grains, etc Glucose: blood sugar, essential energy source, part of every disaccharide. Galactose: only in a few foods. not very sweet. Disaccharides: mono pairs, condensation links two monosaccharides together, and hydrolysis breaks a disaccharide in two. Glycogen: storage form of energy in the body, linked together in highly branched chains. Starches: storage form of energy in plants, linked together in beached or unbranched chains. Functional bers: extracted and added to foods. Phytic acid: component in ber that binds minerals. Digestion ultimate goal is to turn carbs into glucose for absorption and use. Role of ber is satiety or staying full longer. Small intestine: where most carb digestion occurs, pancreatic amylase, speci c disaccharide enzymes. Lactase activity peaks immediately after birth and declines with age.
