NUTR 120 Lecture Notes - Lecture 5: Hydrogenation, Conjugated Linoleic Acid, Peanut Butter
Document Summary
Review: according to the dri recommendations, the rda for vitamin c for men aged 19-30 is 90mg/day. 18:2n-6 it"s linoleic acid and is an omega-6. 18:3n-3 it"s -linolenic acid is an omega -3: which are the legumes, which are the tree nuts: Protects skeleton and vital organs: energy reserve: Reduces levels by oxidizing/burning fat only if intake>expenditure: precursor for other biomolecules: * eicosanoids and phospholipids are from fatty acids. Purposes: transforms and oil (l) into a harder fat for the purpose of spreadability (ex. margarine) and baking (ex. vegetable oil shortening, to enhance shelf life of processed foods. A category of fatty acids formed during hydrogenation: most naturally occurring fatty acids have (cid:862)(cid:272)is(cid:863) dou(cid:271)le (cid:271)onds. Sides are on the same side of the double bond (cid:271)) hydrogenation produ(cid:272)es (cid:862)trans(cid:863) dou(cid:271)le (cid:271)onds. Sides are on the opposite side of the double bond. Minority: dairy foods (formed naturally in the rumen of cow; conjugated linoleic acid) about 6% of trans in diet.
