CHE 108 - Lipids

CHE 108 - Lipids - CHAPTER 17: LIPIDS Fatty acids o...

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CHAPTER 17: LIPIDS Fatty acids o Characteristics Fatty acids are long straight-chained monocarboxylic acids Fatty acids contain an even number of carbon atoms Essential fatty acid: cannot be synthesized by the body Fatty acids only have cis- double bonds Saturated fatty acid: has no double bonds Unsaturated fatty acid: has double bonds o Name and structures to know Saturated Palmitic C15H31COOH Stearic C17H35COOH Arachidic C19H39COOH Unsaturated Palmitoleic C15H29COOH 9 Oleic C17H33COOH 9 Linoleic C17H31COOH 9, 12 Linolenic C15H29COOH 9, 12, 15 Arachidonic C19H31COOH 5, 8, 11, 14 Classification o Saponifiable: base-catalyzed hydrolysis of an ester to form a salt and alcohol Simple saponifiable Waxes Triglycerides Complex saponifiable Phosphoglycerides Sphingolipids o Non-saponifiable Steroids Prostaglandins o Glycerides Esterification may occur at one, two, or all three alcohol positions producing… Monoglyceride
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CHE 108 - Lipids - CHAPTER 17: LIPIDS Fatty acids o...

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