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REVERSE OSMOSIS — CONCENTRATION APPLICATIONS
Author(s) -
Donnelly J. K.,
O'Sullivan A. C.,
Delaney R. A. M.
Publication year - 1974
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.1471-0307.1974.tb01687.x
Subject(s) - reverse osmosis , chemistry , skimmed milk , evaporation , chromatography , whey protein , forward osmosis , raw material , food science , membrane , biochemistry , thermodynamics , organic chemistry , physics
An examination is made of the influence of the main processing variables in the reverse osmosis (RO) concentration of both whey and skim milk. Up to a solids concentration ceiling of ca. 25 per cent, RO offers an economic advantage over thermal evaporation as a concentration technique, in terms of lower operating costs. Furthermore, RO possesses the additional advantage that it concentrates without heat, thereby retaining the native properties of the original raw material before concentration. In particular, there is no heat denaturation of the thermolabile whey proteins and, hence, no reduction of valuable functional properties and no cooked flavour development. Based on these inherent advantages of RO over thermal evaporation, various process and product applications of RO to whey and skim milk utilization have been suggested. Additional features of membrane processing by RO have also been discussed.