Enzyme Recovery and Reuse via Ultrafiltration in Dairy Processing

Abstract

This study examines the feasibility of enzyme recovery and reuse in dairy processing through
ultrafiltration. The objective was to devise a process for membrane retention that would allow for maximal
enzymatic activity post several cycles of use. An experimental set up was constructed to test the retention of
lactase and protease at various transmembrane pressures and enzyme concentrations. Results showed that it
was achievable to maintain activity retention above 85% with minimal degeneration in activity loss over
three cycles. This method improves enzyme preservation and dairy industry sustainability by lowering waste
and production costs.