Saturated and Unsaturated Fats

  1. Saturated fats molecules are molecules where the fatty acids contain single carbon-carbon
    (– C – C –) covalent bonds. 
  2. Unsaturated fat molecules are molecules where the fatty acids that contain single (– C – C –) and double ( – C = C – ) covalent bonds between carbon atoms in their hydrocarbon chain.
  3. Unsaturated fats can be converted to saturated fats when react with hydrogen gas at temperature 180° in the presence of nickel as catalyst.
  4. The reaction is an addition reaction.
  5. This process is used in manufacturing margarine.
  6. Table below summarise the difference between saturated fat and unsaturated fat.

Saturated Fats Unsaturated Fats

  1. Consist of saturated fatty acids. Saturated fatty acids have no double bonds between the carbon atoms of the fatty acid chains.
  2. Higher melting point.
  3. Exist as solid at room temperature.
  4. Cannot be hydrogenated.
  5. High cholesterol content

  1. Consist of unsaturated fatty acids, which contain one or more than one double bond in the fatty acid chains.
  2. Lower melting point.
  3. Exist as liquid at room temperature.
  4. Can be hydrogenated.
  5. No cholesterol content


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