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TitleExtraction of lipids from aqueous protein-rich streams using near-critical dimethylether
Publication TypeJournal Article
Year of Publication2007
AuthorsCatchpole, O.J., Tallon S.J., Grey J.B., Fenton K.A., Fletcher K., and Fletcher A.J.
JournalChemical Engineering and Technology
Pagination501 - 510
Date Published2007
ISSN09307516 (ISSN)
KeywordsDairy products, Denaturation, Dimethylether, Equations of state, Ethers, Extraction, Feed ratio, Lipids, Peng-Robinson equation, Phase equilibria, Proteins
AbstractAn extraction process for obtaining lipids from aqueous protein/lipid mixtures has been developed using near-critical dimethylether (DME) as the solvent. The process has been demonstrated on fresh and reconstituted egg yolks, and on selected dairy by-product streams. The lipid yield is dependent on the processing temperature, solids content and feed ratio of solvent to liquid. The extent of protein denaturation is also dependent on these parameters. The phase equilibria of DME-water-phospholipid mixtures are presented with modeling of the DME-water system using the Peng-Robinson equation of state. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

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