Omega – 3 Fats
• A double bond third from the non-acid end
• May serve to reduce your chances of getting heart disease.
• Found in fish oils– Like cod liver oil
• Also in flaxseed– For omega – 3 enriched eggs
Fats and Oils
• Saponification – spit off fatty acids• Hydrogenation – add hydrogens thus
decreasing # of double bonds– Changes some cis double bonds to trans
double bonds (unnatural)– Trans pack better than cis so are more solid– Trans fats raise bad cholesterol and lower
good cholesterol– Saturated fats probably better
Fat or Oil Foods
• Margarine
• Butter, cream, milk– 80%, 35%, 4-2-1-.5%
• Mayonnaise – 80%
• Chocolate - ~30%
Lipids - Phospholipids
• Substitute phosphoric acid for one fatty acid on a fat molecule
• Main molecule of cell membranes
• Pam spray
Cholesterol
• ~250 grams/adult
• ~80% in bloodstream is manufactured in the body
• Used by body to produce:– Vitamin D, Cortisone, sex hormones, etc– Cell membranes
• Need it in your diet
Lipids - Waxes
• Used for Protection
• In plants, to conserve water
• On feathers, so they won’t water wet
• Why ear wax?
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