Starch-based edible nanocomposite films for intelligent food packaging
Volume Title: 1
Authors
1Caspian Faculty of Engineering, College of Engineering, University of Tehran, Guilan, Rezvanshar, Iran, P.O. Box 43841‑119.
2Caspian Faculty of Engineering, College of Engineering, University of Tehran, P.O. Box 43841-119, Guilan, Rezvanshar, Iran.
3Caspian Faculty of Engineering, College of Engineering, University of Tehran, Guilan, Rezvanshar, Iran, P.O. Box 43841‑119
4Caspian Faculty of Engineering, College of Engineering, University of Tehran, P.O. Box 43841-119, Guilan, Rezvanshar, Iran
Abstract
Biodegradable packaging in food materials is a green technology-based novel approach to replace the synthetic and conventional packaging systems. pH-sensitive starch-based films were developed by incorporating different amounts of zinc oxide nanoparticles and curcumin. Prepared films had suitable mechanical properties. However, starch-ZnO nanocomposite films exhibited higher moisture content and non-transparency than starch film. Among all films tested, nanocomposites film containing 0.1, 0.25, 0.5 and 1 wt% of ZnO on starch basis exhibited the best performance in antioxidant and antibacterial activities. Scanning electron microscopy showed nanoparticles were uniformly distributed in starch films. Also, color variations were observed in starch-based nanocomposites films containing curcumin by changing pH. Results suggested starch-ZnO-curcumin films could be used as a promising antioxidant and visible pH-sensing food packing materials.
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