RT journal article
T1 Characterization of Olive Leaf Extract Polyphenols Loaded by Supercritical Solvent Impregnation into PET/PP Food Packaging Films
A1 Cejudo Bastante, Cristina
A1 Casas Cardoso, Lourdes
A1 Fernández Ponce, María Teresa
A1 Mantell Serrano, Casimiro
A1 Martínez de la Ossa Fernández, Enrique José
A2 Ingeniería Química y Tecnología de Alimentos
AB An olive leaf extract (OLE) obtained by enhanced solvent extraction (ESE) with high antioxidant was used as the active substance in supercritical solvent impregnation (SSI) of PET/PP films. The extract was characterised by UPLC-QTOF-MS and it was then compared with the profile of the impregnated polyphenols for different operational conditions, namely pressure (100, 200, 300 and 400 bar) and time (5 min and 1, 2, and 22 h), in order to evaluate the possible selective impregnation. Oleuropein and luteolin-7-glucoside were the main phenolic antioxidants in both the extracts and the impregnated matrices. 400 bar and 1 h were stablished as the best impregnation conditions due to the higher concentration and wider variety of OLE compounds observed in the matrix. After study the migration of compounds into food simulants, the effectiveness of the impregnated film against lipid oxidation was evaluated during the storage of sunflower seeds.
PB Elsevier
SN 0896-8446
YR 2018
FD 2018
LK http://hdl.handle.net/10498/30166
UL http://hdl.handle.net/10498/30166
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026