PROCEDE POUR LA PREPARATION D'UN CONCENTRE DE BIOPOLYMERE ACTIF

摘要

A method of concentrating an aqueous, highly-pseudoplastic biopolymer solution or preconcentrate having an apparent viscosity of at least about 3,000 centipoise comprising subjecting said solution or preconcentrate to membrane ultrafiltration at a linear flow velocity of at least about 40 cm/sec across said membrane surface, while exerting an average pressure differential across said membrane of at least about 2.0 atmospheres.