RT info:eu-repo/semantics/article
T1 Lipase-catalyzed glycerolysis of anchovy oil in a solvent-free system: Simultaneous optimization of monoacylglycerol synthesis and end-product oxidative stability
A1 Palacios Santamaría, David
A1 Ortega Santamaría, Natividad
A1 Rubio Rodríguez, Nuria
A1 Busto Núñez, Mª Dolores
K1 Lipase PS-DI
K1 Monoacylglycerols (MAG)
K1 Oxidative stability
K1 Polyunsaturated fatty acids (PUFA)
K1 Solvent-free glycerolysis
K1 Bioquímica
K1 Biochemistry
K1 Alimentos
K1 Food
K1 Biotecnología
K1 Biotechnology
AB The production of mono- and diacylglycerols rich in polyunsaturated fatty acids is achieved in this study, by solvent-free glycerolysis of anchovy oil with lipase PS-DI from Burkholderia cepacia. Attention is focused on the oxidative stability of the reaction products, determined in terms of induction time (It). The effects of glycerol/triacylglycerol molar ratio, enzyme concentration, and reaction temperature on mono- and diacylglycerol production and It are all assessed. The operating conditions that optimized monoacylglycerol yields and oxidative stability were a glycerol/triacylglycerol ratio of 3/1, 9.0% (w/w) Lipase PS-DI, a stirring rate of 200 rpm, and a reaction time of 4 h, at 45.8 °C, producing a content of 24.8% and 51.9% of mono- and diacylglycerols, respectively, over an It of 1.41 h. The glycerolysis conditions determined by simultaneous optimization strategy increased the oxidative stability of the glycerolysis products by 68%, which rose from 0.84 h (individual optimization) to 1.41 h.
PB Elsevier
SN 0308-8146
YR 2019
FD 2019-01
LK http://hdl.handle.net/10259/9762
UL http://hdl.handle.net/10259/9762
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 12-dic-2024