Effect of Contamination and Cleaning of a Microfiltration Membrane in Filtration of an Aqueous Extract of Dog-Rose

The main factors responsible for decrease in the filtration flux (membrane throughput) in removal of pectin substances from an aqueous extract from dog-rose fruits and reasons for membrane contamination were studied. The method for membrane cleaning with distilled water and additional cleaning agents, aqueous solutions of NaOH and HNO3, was optimized.