title: Effect of oil lamination between plasticized starch layers on film properties.
abstract: To reduce the hygroscopic character of biodegradable starch-based films, rapeseed oil was incorporated by lamination (starch-oil-starch 3-layers technique). The lipid lamination followed by starch solution casting step induced an emulsion type structure of dried films. Composite films are more opalescent and glossier than fatty free starch films. For all the films, structure is heterogeneous in the cross-section only. Adding fat induced a twice decrease of the tensile strength. Thermal gravimetry analysis did not show differences between films with and without oil. Lipid reduced the moisture absorption particularly at higher RH as well as the surface swelling index, when water droplet contact occurred. Addition of lipids always decreases the contact angle for all liquid tested, except for water. Surface affinity of films for liquids less polar that water increased with rapeseed oil addition. The addition of rapeseed oil significantly reduces water vapour and oxygen permeability.
authors.affiliation: Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences-SGGW (WULS-SGGW), 159c Nowoursynowska St., 02-776 Warsaw, Poland; UMR A 102-02 PAM-PAPC, University of Burgundy/AgroSup Dijon, 1 Esplanade Erasme, 21000 Dijon, France.
authors.forename: Ewelina
authors.initials: E
authors.lastname: Basiak
authors.affiliation: UMR A 102-02 PAM-PAPC, University of Burgundy/AgroSup Dijon, 1 Esplanade Erasme, 21000 Dijon, France; Dpt Bioengineering, IUT-Dijon-Auxerre, University of Burgundy, 7 Blvd Docteur Petitjean, BP17867, 21078 Dijon, France. Electronic address: frederic.debeaufort@u-bourgogne.fr.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Debeaufort
authors.affiliation: Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences-SGGW (WULS-SGGW), 159c Nowoursynowska St., 02-776 Warsaw, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Lenart
mesh_terms: D005229:Fatty Acids, Monounsaturated; D010539:Permeability; D010938:Plant Oils / Q000737:chemistry*; D010968:Plasticizers / Q000737:chemistry*; D000074262:Rapeseed Oil; D013213:Starch / Q000737:chemistry*; D013499:Surface Properties; D014867:Water / Q000737:chemistry
chemical_list: D005229:Fatty Acids, Monounsaturated; D010938:Plant Oils; D010968:Plasticizers; D000074262:Rapeseed Oil; D014867:Water; D013213:Starch
keywords: Edible films; Emulsions; Interfacial energy; Permeabilities; Rapeseed oil; Structure; Wheat starch