Glycerol belongs to the alcohol family of organic compounds.It is not apolymer of glucose.After ethanol and carbon dioxide, glycerol is the most abundant product of yeast fermentation .It is a syrupy, sweet, colorless or yellowish liquid,obtained from fats and oils as a byproduct of saponification and used as a solvent, an antifreeze, a plasticizer, and a sweetener and in the manufacture of dynamite, cosmetics, liquid soaps, inks, and lubricants.