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Advisor(s)
Abstract(s)
Lipases have become powerful tools in the manufacture of structured fats either via randomization of their
glyceride composition or incorporation of externally supplied fatty acid residues in such glycerides. The
present communication reports on changes that occurred in the fatty acid pool of anhydrous butterfat subject
to interesterification and to acidolysis with oleic acid catalyzed by a commercial lipase immobilized by plain
physical adsorption onto hydrophobic hollow fibers at 40°C under controlled water activity. The main goal
of this research effort was to engineer butterfat so as to increase its level of unsaturated fatty acid residues
and concomitantly decrease its level of medium- and long-chain saturated fatty acid residues (viz. lauric and
myristic acids). Although a certain degree of net hydrolysis of butterfat was observed, the triacylglycerols
of butterfat subject to acidolysis were found to possess more (approximately 30% w/w) oleic acid and
significantly less (8% w/w) lauric acid and less (2% w/w) myristic acid than those of the original butterfat.
Description
Keywords
Immobilized lipase Acidolysis Acidolysis Butter Hollow-fiber reactor Free fatty acids Randomization
Citation
BALCÃO, Victor M. ; MALCATA, F. X.; - Interesterification and acidolysis of butterfat with oleic acid by Mucor javanicus lipase: changes in the pool of fatty acid residues. Enzyme and Microbial Technology. ISSN 0141-0229. Vol. 22 (1998), p. 511–519
Publisher
Elsevier