Quince seed mucilage films incorporated with oregano essential oil: Physical, thermal, barrier, antioxidant and antibacterial properties

SEM micrographs of cross-section of QSM films. 0% OEO (control) (a), 1% OEO (b), 1.5% OEO (c), 2% OEO (d). S = Surface in contact with air during drying and C = cross-section of the films.