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Supercritical fluid assisted, integrated process for the synthesis and separation of different lipid derivatives
Author(s) -
Weber Andreas,
Catchpole Owen,
Eltringham Wayne
Publication year - 2008
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200800082
Subject(s) - glyceride , supercritical fluid , chemistry , chromatography , fraction (chemistry) , separation process , fish oil , supercritical fluid extraction , organic chemistry , chemical engineering , fish <actinopterygii> , fatty acid , fishery , biology , engineering
Abstract The partial synthesis of ethyl esters from corn and fish oil was carried out in a stirred tank at supercritical conditions and the products were separated from the reaction mixture using the supercritical fluid. Corn oil can be almost completely converted to ethyl esters under optimized conditions and the rate of reaction is comparable to atmospheric pressure conditions. Some concentration of polyunsaturates occurs in the partially converted glyceride fraction of fish oil, as the enzyme used, Lipozyme® TL‐IM, allows preferential esterification of the saturates and mono‐unsaturates that are concentrated in positions 1 and 3 of the triglycerides. By judicious selection of the processing conditions, good separation of ethyl esters from the partially reacted glycerides was achieved.