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Nutrition, Lipids

Nutrition, Lipids. 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

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Nutrition, Lipids

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  1. Nutrition,Lipids

  2. 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

  3. 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

  4. Fat or Oil Foods • Margarine • Butter, cream, milk • 80%, 35%, 4-2-1-.5% • Mayonnaise – 80% • Chocolate - ~30%

  5. Fake Fats • Why fake fats?

  6. Lipids - Phospholipids • Substitute phosphoric acid for one fatty acid on a fat molecule • Main molecule of cell membranes • Pam spray

  7. Lipids - Steroids • Have the following general shape • Include cholesterol and sex hormones

  8. Anabolic steroid Andro-6

  9. Cholesterol • Structure:

  10. 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

  11. Lipids - Waxes • Used for Protection • In plants, to conserve water • On feathers, so they won’t water wet • Why ear wax?

  12. H21 – C7 • 37, 38, 50, 62, 64

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