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Ultrafiltration of milk on mineral membranes: improved performance *
Author(s) -
BENNASAR M.,
ROULEAU D.,
MAYER R.,
FUENTE B. TARODO DE LA
Publication year - 1982
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/j.1471-0307.1982.tb02711.x
Subject(s) - ultrafiltration (renal) , membrane , chemistry , porosity , dairy industry , chromatography , raw material , flux (metallurgy) , chemical engineering , materials science , pulp and paper industry , food science , engineering , biochemistry , organic chemistry
A new generation of inorganic ultrafiltration (UF) alumina membranes was tested on milk considering membrane porosity, UF pressure. duration of treatment. concentration factor, and ultrafiltrate flux. The experiments were carried out on whole raw milk at a low temperature to simplify the technology and to limit bacteriological growth while considerably reducing the cost of energy. Different modifications were studied to improve the UF process: pre‐remitting, enrichment of milk with calcium, and flow regime. The results indicate that it is possible to increase the ultrafiltrate flux considerably while maintaining a high level of retention of nitrogen compounds, thus opening the way to industrial application. A simple cleaning and sanitizing cycle ensures a longer live for this new alumina material and eliminates the technical and economical problems associated with current polymeric membranes .