Question

Why hydrogenation is done on vegetable oils?

Answer 1

This means that hydrogen atoms are added to the double bonds in vegetable oils. ... In this way unsaturated vegetable fats and oils can be transformed through partial or complete hydrogenation into fats and oils of higher melting point and thickness. Oil that is completely hydrogenated becomes solid at room temperature.

Answer 2

Trans Fatty Acids And Hydrogenated Vegetable Oils. Oils (such asvegetable, olive, sunflower) are liquids at room temperature. In the food industry, hydrogen is added to oils (in a process called hydrogenation) to make them more solid, or 'spreadable'.