HSS 2342 Lecture 3: Carbohydrates
14 Dec 2015
School
Department
Course
Professor
Document Summary
Found in unrefined plant foods; grains, vegetables, legumes, fruits building blocks of glucose single bonds aldohexose; double bonds - keto hexhexose (cid:2) (cid:2) (cid:2) Glucose: needed by every cell especially brain and nervous system. Single sugars put together through condensation (reactants from one larger (cid:2) molecule by releasing water) or hydrolysis (water molecule splits to two h and oh to complete monosaccharide) Sucrose: table or white sugar, made of glucose and fructose (cid:2) (cid:2) lactose: principle carbohydrate of milk, made of glucose and galactose contributes half the energy from fat-free milk. Maltose: plant sugar composed of 2 glucose molecules o: produced in digestion of carbohydrates and fermentation of alcohol. Dri 45-65% of energy (225-235 kcal/day); dv 300g/day. Lactose intolerance lactase activity highest immediately after birth, declines with age cause by lactase deficiency: body does not produce enough lactase to digest lactose from milk (cid:2) (cid:2) (cid:2) parts that the body can use.
