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9 Cards in this Set
- Front
- Back
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Iodine number |
Iodine number is defined as the number of grams of iodine taken up by 100g of fat. Butter- 28 Sunflower oil- 130 |
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Rancidity |
Appearance of an unpleasant smell and taste for fats and oils, on exposure to air, moisture or heat. |
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Triacylglycerol |
Esters of fatty acid with glycerol. Fuel reserves Located in adipose tissue. Lipase- breakdown of triacyl glycerol. |
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Waxes |
Esters of fatty acids with higher molecular weight alcohol. Takes up water without dissolving. Ointments, polishes, candles. |
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Lecithin |
Nitrogen containing phospholipid, Glycerol+fatty acid+phosphoric acid+choline(quarternary nitrogenous base) Dipalmitoyl lecithin- surfactant LS ratio- indicates lung maturity, =2. |
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Cephalin (Phosphatidylethanolamine) |
Nitrogenous base is ethanolamine instead of choline. Found in biomembranes and possess amphipathic properties. |
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Phosphatidylinositol |
Phosphatidic acid is esterified to inositol. Phosphatidylinositol biphosphate is present in biomembranes, acts as secondary messenger. |
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Phosphatidyl glycerol |
Esterification of phosphatidic acid to glycerol... Diphosphatidyl glycerol or cardiolipin- major lipid of mitochondrial membrane. Commercially extracted from myocardium. |
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Plasmalogens |
Long aliphatic alcohols in ether linkage with the first OH of glycerol... Found in biomembranes in brain and muscle Phosphatidic acid attached with ethanolamine or choline. |
