Thorough evaluation of sweet potato starch and lemon-waste pectin based-edible films with nano-titania inclusions for food packaging applications

International Journal of Biological Macromolecules
Kshirod K DashD Mohanta

Abstract

Biodegradable starch-pectin‑titanium oxide nanoparticles (TiO2 - NPs) blend edible films were developed by casting filmogenic solution of sweet potato starch and lemon waste pectin incorporated with TiO2 nanoparticles. The effect of incorporating different concentration of TiO2 nanoparticle (0.5-4% wt) on the different properties of starch and pectin based edible film was evaluated. Surface color measurement, light transmission, scanning electron microscopy, fourier transform infrared spectroscopy, X-ray diffraction, differential scanning calorimetry and thermogravimetric analysis techniques were used to characterize the developed films. Increasing the level of TiO2-NPs led to significant decreases in the moisture content, solubility, and moisture uptake of the films. Addition of low concentration of TiO2 - NPs into starch-pectin films significantly improved the mechanical and moisture barrier properties. SEM analysis also revealed that good particles dispersion could be obtained when nano-TiO2 particles content was low (0.5-2% wt). The glass transition temperatures (Tg) shifted to higher temperature with increasing the TiO2 concentrations and the thermal stability of the films was increased. The transmittance percentage was al...Continue Reading

Citations

Jul 9, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·M Maiti, J Smotlacha
May 28, 2020·Science China. Life Sciences·Xiaoyu WangChunying Chen
Dec 19, 2020·Comprehensive Reviews in Food Science and Food Safety·Moira K Lauer, Rhett C Smith
Oct 26, 2020·International Journal of Biological Macromolecules·Hend E Salama, Mohamed S Abdel Aziz
Mar 20, 2021·International Journal of Biological Macromolecules·Danielly de Oliveira BegaliClaire I G L Sarantopoulos
Aug 26, 2021·Environmental Science and Pollution Research International·Shanxue JiangZhiliang Yao

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