11:067:330 Lecture Notes - Lecture 12: Lipoprotein Lipase, Pancreatic Lipase Family, Adipose Tissue
21 Jul 2017
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Document Summary
Most lipids of dietary significance: fats or glycolipids (cid:1543) principle lipids in forages. Non-glycerol lipids contain compounds such as steroid hormones, lipids of the brain (sphingomyelin, cerebrosides) Glycerol-based compounds can be simple (animal fat / plant oils) or compound. Glycolipids contain 2 fatty acids: one replaced by a glucose (glucolipid) or galactose (galactolipid) molecule. Most important nutrients in lipids: long chain fatty acids. Contain c atoms, usually c16 and c18 molecules. Triglyceride formed by esterification of 1 mole of glycerol with 3 moles of fa chains. Fats (cid:1543) animal origin, high melting points (solid at room temperature) Oils (cid:1543) plant origin, low melting points (liquid at room temperature) Fas classified by structure (c chain length), degree of saturation (# of double bonds), and position of double bonds. Saturated fas (cid:1543) no db, every c surrounded by h. Chain length (cid:1542) = melting point (cid:1542) Of double bonds (cid:1542) = melting point (cid:1544) Chylomicrons are lipoproteins found in blood plasma.
