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Lipase-catalysed synthesis of palm oil-omega-3 structured lipids

journal contribution
posted on 2019-06-01, 00:00 authored by Q Xia, Taiwo Akanbi, R Li, B Wang, Wenrong YangWenrong Yang, Colin BarrowColin Barrow
In this work, Candida antarctica lipase A was applied to selectively remove saturated fatty acids from palm oil to prepare palm oil acylglycerol concentrate (POAC), where palmitic acid decreased from 40.0 to 28.7% and oleic acid increased from 40.0 to 50.5% after 3 h of hydrolysis. Lipozyme RMIM from Rhizomucor miehei was then used to incorporate either alpha linolenic acid (ALA) or eicosapentaenoic acid (EPA) into the resulting POAC. Optimum omega-3 incorporation was achieved when POAC to omega-3 ratio was 6:3, reaction temperature was 40 °C and reaction time was 18 h. Under these conditions, the ALA content in the separated ALA incorporated structured lipid (POAC-ALA) was 27.1%, and the EPA content in the EPA incorporated structured lipids (POAC-EPA) was 30.9%. The formed structured lipids had lower levels of saturated fatty acids, and significantly lower melting points, in both cases below 8 °C. The enzymatic process developed produces new structured lipids, with lower saturated fat and higher omega-3, with potential as a healthy palm oil derived lipid ingredient.

History

Journal

Food and function

Volume

10

Issue

6

Pagination

3142 - 3149

Publisher

Royal Society of Chemistry

Location

Cambridge, Eng.

ISSN

2042-6496

eISSN

2042-650X

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2019, The Royal Society of Chemistry