title: Characterization of soluble soybean polysaccharide film incorporated essential oil intended for food packaging.
abstract: This study examines the development of new bio-active polysaccharide-based bioplastics through casting and solvent-evaporation. Soluble soybean polysaccharide (SSPS) films incorporated with Zataria multiflora Boiss (ZEO) or Mentha pulegium (MEO) at various concentrations were prepared and characterized. The presence of ZEO and MEO improved polysaccharide interactions, reducing the films' water solubility and water vapor barrier properties, but did not markedly modify their moisture content or thickness. Differing amounts of ZEO or MEO had no significant effect on mechanical behavior, with the exception of 3% oil concentration, which decreased tensile strength and significantly increased elongation at break. DMTA curves revealed a single Tg, which may indicate the compatibility of essential oil and SSPS. The electron scanning micrograph for the composite film was homogeneous, without signs of phase separation between the components. These results suggest that ZEO and MEO can potentially be directly incorporated into SSPS to prepare active biodegradable films for food-packaging applications.
authors.affiliation: Department of Food Science and Technology, Sabzevar Branch, Islamic Azad University, Sabzevar, Iran.
authors.forename: Davoud
authors.initials: D
authors.lastname: Salarbashi
authors.forename: Sima
authors.initials: S
authors.lastname: Tajik
authors.forename: Mehran
authors.initials: M
authors.lastname: Ghasemlou
authors.forename: Saeedeh
authors.initials: S
authors.lastname: Shojaee-Aliabadi
authors.forename: Mostafa
authors.initials: M
authors.lastname: Shahidi Noghabi
authors.forename: Ramin
authors.initials: R
authors.lastname: Khaksar
mesh_terms: D018857:Food Packaging / Q000379:methods*; D055595:Mechanical Phenomena; D027541:Mentha / Q000737:chemistry*; D009822:Oils, Volatile / Q000737:chemistry*; D010539:Permeability; D011134:Polysaccharides / Q000737:chemistry*; D012995:Solubility; D013025:Glycine max / Q000737:chemistry*; D013696:Temperature; D014835:Volatilization; D014867:Water / Q000737:chemistry
chemical_list: D009822:Oils, Volatile; D011134:Polysaccharides; D014867:Water
keywords: Atomic force microscopy; Essential oil; Moisture uptake; Soluble soybean polysaccharide