Optimization and Characterization of Bioactive Biocomposite Film Based on Orange Peel Incorporated with Gum Arabic Reinforced by Cr2O3 Nanoparticles

In this paper, the effect of adding gum arabic at levels 0–5%, and chromium oxide nanoparticles (Cr2O3 NPs) 0–3%, were optimized on orange peel-based films by response surface methodology. The obtained results reveal a significant increase in water vapor permeability, weight loss, tensile strength, Young's modulus film samples increasing percentage both (p < 0.05). Moreover, addition Cr2O3 NPs decreases thickness, water-solubility, L*, a*, b* indexes while elongation to breaking point. Furthermore, moisture content was decreased nanoparticles, however, increased parameter. from morphology indicated an roughness cracks as well creating smooth with arabic. Besides, Fourier-transform infrared spectroscopy revealed no new peak prepared samples, compared control sample. X-ray diffraction that simultaneously caused formation crystals crystallinity films. Based Thermogravimetric analysis results, thermal stability containing increased, meantime, antimicrobial properties control. Overall, those created peel including could enhance mechanical permeability samples.