RT info:eu-repo/semantics/article T1 Glycerolysis of sardine oil catalyzed by a water dependent lipase in different tert-alcohols as reaction medium T2 Glicerolisis de aceite de sardina catalizada por una lipasa dependiente de agua en diferentes tert-alcoholes como medio de reacción A1 García Solaesa, Ángela A1 Sanz Díez, Mª Teresa A1 Melgosa Gómez, Rodrigo A1 Bucio López, Silvia Liliana A1 Beltrán Calvo, Sagrario K1 Fish oil K1 Glycerolysis K1 Lipase K1 Monoacylglycerol K1 Rhizomucor miehei K1 Tert-alcohols K1 Aceite de pescado K1 Glicerolisis K1 Lipasa K1 Monoacilglicéridos K1 Tert-alcoholes K1 Ingeniería química K1 Chemical engineering AB The production of monoacylglycerol rich in polyunsaturated fatty acids (PUFA) via enzymaticglycerolysis of sardine oil in a homogeneous system was evaluated. Reactions were conducted in two differenttert-alcohols. Based on the phase equilibrium data, the amount of solvent added to create a homogeneoussystem has been calculated and optimized. The immobilized lipase used in this work was Lipozyme RM IMfrom Rhizomucor miehei, a water dependent lipase. The amount of water added as well as other reaction parameterswere studied to evaluate the optimum conditions for monoacylglycerol obtencion. An initial reactant moleratio glycerol to sardine oil 3:1, 12 wt% of water based on glycerol content and 10 wt% of lipase loading (basedon weight of reactants), achieved a MAG yield of around 70%, with nearly 28 wt% PUFA, with low free fattyacid content (lower than 18 wt%). PB Consejo Superior de Investigaciones Científicas SN 0017-3495 YR 2015 FD 2015-10 LK http://hdl.handle.net/10259/4246 UL http://hdl.handle.net/10259/4246 LA eng NO Spanish Governmentthrough MINECO and the European RegionalDevelopment Fund (ERDF) for financial supportto the project CTQ2012-39131-C02-01. They wishto thank Novozymes A/S for kindly supplying theenzymes. RM acknowledges MINECO for an FPIgrant (reference BES-2013-063937). DS Repositorio Institucional de la Universidad de Burgos RD 24-dic-2024