BIO 111 Lecture Notes - Lecture 6: Tunxis Community College, Coconut Oil, Safflower
6 Jan 2021
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Chain length determines method of fat digestion and absorption (will come into play later) and affects how fats function in the body. Fa absorbed directly into blood bound to albumin transported directly to liver. Long-chain: >12 c lipids broken down to fa, glycerol, chop, and pl. Repackaged as chylomicron (type of lipoprotein) soluble in water due to phospholipids transported in lymph to blood (mixes via thoracic duct) to. Micelles (water soluble droplets of fat made by emulsification with bile acids) are taken up by enterocyte (si cell) 10 lauric type mainly in coconut oil. 12 myristic other type in coconut oil. 16 palmitic - show in bottom example above. Unsaturated - don"t stack as easily due to bends in backbone, liquid at room temp (plant sources have more unsaturated fatty acids) Monounsaturated: 1 double bond. (sources of mufa: olive oil, canola oil, cashews, avocado) Polyunsaturated: 2+ double bonds (sources of pufa: safflower oil, corn oil, walnuts)
