Akademik Veri Yönetim Sistemi
Food Packaging and Shelf Life, cilt.37, 2023 (SCI-Expanded)
Composite biodegradable edible films of sodium alginate were incorporated with Vitis vinifera (V. vinifera) leaf extract (VVLE) and quercetin to develop antioxidative and antimicrobial food packaging. Ultrasound-assisted (US) and bioactive molecule effects on the characteristics of the developed films were investigated. The films were analyzed for structural and physical properties, as well as antioxidative and antimicrobial activities. The incorporation of VVLE significantly improved the bioactive and antimicrobial activity of the developed films. Thickness, elongation at break, and moisture content of ultrasound-assisted pretreated films significantly decreased in comparison to non-treated samples. Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM) indicated good compatibility of the components and well-dispersion of bioactive compounds in the alginate matrix. US pretreated film samples had smoother and more homogeneous surfaces than untreated films. The thermal stabilities of films were confirmed with thermogravimetric analysis, which suggested US significantly increased the thermal stability. The biodegradability of the films was demonstrated by soil degradation properties. In particular, the addition of VVLE and application of US pretreatment improved the structural and antimicrobial as well as the antioxidant activities of the developed alginate-based edible films. The overall findings of this study suggest that US pretreatment and VVLE incorporation have a good potential to develop biodegradable edible active films for food packaging.