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LIPIDS

LIPIDS. Chapter 6. omega end alpha end (methyl group) (carboxyl group). Typical Fatty Acid Structure. H H H H H H H H H H H H H H H H H O H-C--C--C--C--C--C--C--C--C--C--C--C--C--C--C--C--C-C-OH H H H H H H H H H H H H H H H H H.

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LIPIDS

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  1. LIPIDS Chapter 6

  2. omega end alpha end (methyl group) (carboxyl group) Typical Fatty Acid Structure H H H H H H H H H H H H H H H H H O H-C--C--C--C--C--C--C--C--C--C--C--C--C--C--C--C--C-C-OH H H H H H H H H H H H H H H H H H

  3. Degrees of Saturation • Saturated • Unsaturated • Monounsaturated • Polyunsaturated

  4. omega end alpha end All single bonds to hydrogen Saturated Fatty Acid Structure H H H H H H H H H H H H H H H H H O H-C--C--C--C--C--C--C--C--C--C--C--C--C--C--C--C--C-C-OH H H H H H H H H H H H H H H H H H

  5. omega end alpha end One double bond Monounsaturated Fatty Acid Structure H H H H H H H H H H H H H H H O H-C--C--C--C--C--C--C--C--C=C--C--C--C--C--C--C--C--C-OH H H H H H H H H H H H H H H H H H

  6. omega end alpha end > 2 double bonds Polyunsaturated Fatty Acid Structure H H H H H H H H H H H H H O H-C--C--C--C--C--C=C--C--C=C--C--C--C--C--C--C--C--C-OH H H H H H H H H H H H H H H H H H

  7. omega end alpha end 1st double bond is located on the 3rd carbon from the omega end Essential Fatty Acid Omega-3 (alpha-linolenic acid) H H H H H H H H H H H H H H H H H O H-C--C--C=C--C--C =C--C--C=C--C--C--C--C--C--C--C--C-OH H H H H H H H H H H H

  8. omega end alpha end 1st double bond is located on the 6th carbon from the omega end Essential Fatty AcidOmega-6 (alpha-linoleic acid) H H H H H H H H H H H H H O H-C--C--C--C-- C--C =C--C--C=C--C--C--C--C--C--C--C--C-OH H H H H H H H H H H H H H H H H H

  9. (Ester bond) Glycerol + 3 FA’s Triglyceride + 3 H20 Triglycerides H O H--C--O--C-- O H--C--O--C-- O H--C--O--C-- H H H--C--OH H--C--OH H--C--OH H O HO-C-R O HO-C-R O HO-C-R R + H2O + R + H20 R + H20

  10. esterification deesterfication Triglycerides Fatty Acid Fatty Acid Fatty Acid H O H--C--O--C-- O H--C--O--C-- O H--C--O--C-- H H H--C--OH H--C--OH H--C--OH H Fatty Acid + Fatty Acid Fatty Acid

  11. Functions of Triglycerides • Provide energy • Efficient storage of energy • Insulation • Protection • Transport fat-soluble vitamins • Satiety • Flavor and texture

  12. Emulsification

  13. Cholesterol Content in Food

  14. Digestion of lipids

  15. Absorption of lipids

  16. Chylomicrons

  17. Transport of Lipids

  18. Transport of Lipids

  19. Transport of Lipids

  20. Atherosclerosis

  21. Cis and Trans Fatty Acid

  22. Hydrogenation Process

  23. Trans Fatty Acids in Foods

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