Characterization of Semolina Protein Film with Incorporated Zinc Oxide Nano Rod Intended for Food Packaging

Abstract

This study intended to provide biopolymer fi lms used as food packaging, which will result in reducing environmental pollution produced by the activities of synthetic food packaging. We used zinc oxide nanorods (ZnO-nr) and we prepared nanocomposite fi lms by means of solvent casting. FTIR and SEM were employed to characterize the fi nal fi lms. SEM images revealed that ZnO-nr particles were homogenously distributed throughout the fi lm surface. The thermal, optical, and heat sealability properties of the fi lms were also examined. Adding ZnO-nr signifi cantly reduced oxygen permeability and heat sealability. The semolina fi lms' UV absorbance was highly impacted by the degree of ZnO-nr addition. The nanocomposite fi lms absorbed above 90% of the near infrared spectra. In addition, the zeta potential revealed the surface charge of ZnO-nr had a negative charge of about -33.9 mV.

Application of antimicrobial active packaging film made of semolina flour, nano zinc oxide and nano‐kaolin to maintain the quality of low‐moisture mozzarella cheese during low‐temperature storage

“…12 As one of such biopolymer packaging films, Jafarzadeh et al 13 have proposed an edible semolina film. Semolina, a roughly milled endosperm of Durum wheat high in protein and gluten, is cheap and forms a tight and compact structure to produce biodegradable and sustainable packaging film with low gas barrier property 14 . However, like most biopolymer films, the semolina-based film is low in water resistance and physical strength.…”

Physico-mechanical and microstructural properties of semolina flour films as influenced by different sorbitol/glycerol concentrations

“…Plastic has been extensively applied as packaging material; however, because of disposal and environmental problems due to the waste from these materials, petroleum-based plastics are presently being replaced by natural and compostable materials. [1] Edible films and coatings have recently attracted increasing interest due to concerns with the environmental hazards, cost, and supply of petroleum. [2] Materials available for forming edible films and coatings are generally classified as polysaccharides, proteins, and lipids.…”

Ecofriendly and Biodegradable Soybean Protein Isolate Films Incorporated with ZnO Nanoparticles for Food Packaging

“…The stability of the nanoparticle dispersions depends on the interactions between the particles and solvent and the negative charges on the ZnONPs surface arise from zinc salt hydrolysis under alkaline conditions . The larger the zeta potential (absolute value), the stronger is the repulsion and more stable the system. , Hence, the absolute zeta potential (above 30 mV) indicates high stability in the aqueous medium.…”