Studies on Membrane Processing of Sesame Protein Isolate and Sesame Protein Hydrolysate using Rotating Disk Module

Proteolytic enzyme modifications of sesame (Sesamum indicum L.) protein isolate produce a protein hydrolysate containing small peptides. These small peptides are mainly used for therapeutic applications. This work was carried out to fractionate protein hydrolysate into small peptides and large peptides fractions using ultrafiltration and to study the effect of different operating parameters to optimize the process. Membrane rotation reduces concentration polarization and enhances the permeate flux value and found to be more effective than stirrer rotation. Maximum rejection and minimum flux were observed at the isoelectric point of the protein. So, ultrafiltration is a potential route to produce sesame peptides of desired properties.