RT info:eu-repo/semantics/article
T1 Omega–3 encapsulation by PGSS-drying and conventional drying methods. Particle characterization and oxidative stability
A1 Melgosa Gómez, Rodrigo
A1 Benito Román, Oscar
A1 Sanz Díez, Mª Teresa
A1 Paz Barragán, Esther de
A1 Beltrán Calvo, Sagrario
K1 Omega–3
K1 Supercritical carbon dioxide
K1 Emulsion
K1 Oxidation
K1 Ingeniería química
K1 Chemical engineering
K1 Alimentos
K1 Food
AB Particles from Gas-Saturated Solutions (PGSS)-drying has been used as a green alternative to encapsulate omega–3 polyunsaturated fatty acids (n–3 PUFAs) at mild, non-oxidative conditions. PGSS-dried particles have been compared to those obtained by conventional drying methods such as spray-drying and freeze-drying, finding encapsulation efficiencies (EE) up to 98% and spherical morphology for PGSS- and spray-dried particles. Freeze-dried powders showed irregular morphology and EE from 95.8 to 98.6%, depending on the freezing method. Differential scanning calorimetry (DSC) analysis revealed glass-transition and melting peaks of OSA-starch and a cold-crystallization peak corresponding to the encapsulated n–3 PUFA concentrate. Compared to conventionally dried powders, PGSS-dried microparticles showed lower primary and secondary oxidation after 28 days of storage at 4 °C. Ascorbic acid addition combined with the mild processing conditions of PGSS-drying yielded particles with a maximum peroxide value of 2.5 meq O2/kg oil after 28 days of storage at 4 °C.
PB Elsevier
SN 0308-8146
YR 2019
FD 2019-01
LK http://hdl.handle.net/10259/4919
UL http://hdl.handle.net/10259/4919
LA eng
NO Junta de Castilla y León and the European Regional Development Fund for financial support of the project BU055U16
DS Repositorio Institucional de la Universidad de Burgos
RD 25-abr-2024