title: Edible arabinoxylan-based films. 1. Effects of lipid type on water vapor permeability, film structure, and other physical characteristics.
abstract: Arabinoxylans (AX) are natural fibers extracted from maize bran, an industrial byproduct. To promote this polymer as a food ingredient, development of edible coatings and films had been proposed. Indeed, composite arabinoxylan-based films were prepared by emulsifying a fat: palmitic acid, oleic acid, triolein, or a hydrogenated palm oil (OK35). Lipid effects on water vapor permeability (WVP), surface hydrophobicity (contact angles), lipid particle size, and mechanical properties were investigated. Results showed that OK35-AX emulsion films had the lowest WVP. Emulsified films presented a bimodal particle size distribution; however, the smallest particle mean diameter (0.54 microm) was observed in OK35-AX emulsion films. Contact angles of water comparable to those observed for LDPE films (>90 degrees ) are measured on the OK35-AX film surface. Finally, only triolein-AX emulsion films had elongation higher than films without lipid. These results suggest that OK35 enhances functional properties of AX-based films and should be retained for further research.
authors.affiliation: ENSBANA-GPAB, Université de Bourgogne, 1 esplanade Erasme, F-21000 Dijon, France. cperoval@univ-bourgogne.fr
authors.forename: Claudine
authors.initials: C
authors.lastname: Péroval
authors.forename: Frédéric
authors.initials: F
authors.lastname: Debeaufort
authors.forename: Denis
authors.initials: D
authors.lastname: Despré
authors.forename: Andrée
authors.initials: A
authors.lastname: Voilley
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004655:Emulsions; D018857:Food Packaging; D005524:Food Technology; D019301:Oleic Acid / Q000737:chemistry; D000073878:Palm Oil; D019308:Palmitic Acid / Q000737:chemistry; D010316:Particle Size; D010539:Permeability; D010938:Plant Oils / Q000737:chemistry; D011108:Polymers; D013499:Surface Properties; D014304:Triolein / Q000737:chemistry; D014867:Water; D014990:Xylans / Q000737:chemistry*; D003313:Zea mays / Q000737:chemistry
chemical_list: D004655:Emulsions; D010938:Plant Oils; D011108:Polymers; D014990:Xylans; D014867:Water; D014304:Triolein; D019301:Oleic Acid; D019308:Palmitic Acid; D000073878:Palm Oil; C085118:arabinoxylan