Oils and FatsOpt

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13.6 Oils and Fats 100’s of free ppt’s from www.pptpoint.com library
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Chemical structure. Oils and fats – important for storing chemical energy in living things. Oils are liquids – fats are solids. Made from esters of propane-1,2,3,triol (glycerol) + long chain carboxylic acids RCOOH . H H-C-O-H H-C-O-H H-C-O-H H Propane-1,2,3-triol palmitic acid O H-O-C-(CH 2 ) 14 CH 3
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Table 11 Common fatty acids
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Types of triesters Triesters (triglycerides) 3 carboxylic acids react with triol. Mixed triesters three acid groups, not all alike often found in natural oils and fats. H H-C-O- R H-C-O- R’ H-C-O- R’’ H
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Fats and fatty acids. Unbranched hydrocarbon chains. Called fatty acids – occur in fats!!! Fully unsaturated / 3 or 4 double bonds. Still known by old names – systematic names too long. Thought to cause blockage of blood vessels and heart disease, especially the saturated ones.
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Fat facts!
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