Patents

The invention relates to a process for the preparation of sodium salts of N-acyl condensates of karanja seed protein hydrolysates and fatty acids obtained from vegetable oils such as karanja, coconut and palm kernel oils. The process comprising (i) extraction of protein isolate from karanja deoiled cake (ii) hydrolysis of karanja protein isolate (iii) condensation of karanja protein hydrolysates and fatty acid mixtures prepared from karanja, coconut and palm kernel oils to get the N-acyl condensates. The N-acyl condensates of karanja protein hydrolysates were evaluated as their sodium salts for surfactant properties namely surface tension, wetting ability, foam characteristics and emulsifying power. The surfactant properties namely emulsifying power and surface tension of sodium salts of N-acyl condensates prepared were found to be superior whereas wetting and foam characteristics were found to be inferior compared to sodium lauryl sulphate (SLS). The surfactant properties of the sodium salts of N-acyl condensates revealed that they have potential as biosurfactants in the place of traditional surfactants.