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Development and characterization of novel edible films based on Cordia dichotoma gum incorporated with Salvia mirzayanii essential oil nanoemulsion.
- Source :
-
Carbohydrate polymers [Carbohydr Polym] 2021 Apr 01; Vol. 257, pp. 117606. Date of Electronic Publication: 2021 Jan 04. - Publication Year :
- 2021
-
Abstract
- Salvia Mirzaiani essential oil (SMEO) was extracted using hydrodistillation and its GC-MS analysis identified 54 compounds. SMEO nanoemulsion (SMEO-NE) was produced using ultrasound. Then, gum-based films extracted from Cordia dichotoma containing SMEO-NE were prepared at concentrations of 0 (control), 1, 1.5 and 2% (v/v). Addition of SMEO-NE increased thickness, contact angle and elongation at break of the films. It decreased moisture content, water solubility, ultimate tensile strength, water vapor permeability, percentage of light transmission in the visible and ultraviolet range with a significant change in color factors. Formation of new hydrogen bonds between SMEO-NE and film matrix was confirmed by FTIR. Besides, dynamic mechanical-thermal analysis showed a decrease in storage modulus and glass transition temperature of the films. Electron microscope images showed that presence of SMEO-NE led to changes in microstructure of the films. Furthermore, increasing the concentration of SMEO-NE increased antioxidant and antibacterial activity of the films.<br /> (Copyright © 2020 Elsevier Ltd. All rights reserved.)
- Subjects :
- Anti-Bacterial Agents chemistry
Antioxidants chemistry
Food Packaging
Free Radical Scavengers
Hydrogen Bonding
Listeria monocytogenes drug effects
Microbial Sensitivity Tests
Microscopy, Electron
Permeability
Solubility
Spectroscopy, Fourier Transform Infrared
Steam
Temperature
Tensile Strength
Cordia metabolism
Edible Films
Emulsions chemistry
Nanoparticles chemistry
Oils, Volatile metabolism
Salvia metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1879-1344
- Volume :
- 257
- Database :
- MEDLINE
- Journal :
- Carbohydrate polymers
- Publication Type :
- Academic Journal
- Accession number :
- 33541639
- Full Text :
- https://doi.org/10.1016/j.carbpol.2020.117606