Development of Multifunctional Pullulan/Chitosan-Based Composite Films Reinforced with ZnO Nanoparticles and Propolis for Meat Packaging Applications

Abstract

Pullulan/chitosan-based multifunctional edible composite films were fabricated by reinforcing mushroom-mediated zinc oxide nanoparticles (ZnONPs) and propolis. The ZnONPs were synthesized using enoki mushroom extract and characterized using physicochemical methods. The mushroom-mediated ZnONPs showed an irregular shape with an average size of 26.7 ± 8.9 nm. The combined incorporation of ZnONPs and propolis pointedly improved the composite film’s UV-blocking property without losing transparency. The reinforcement with ZnONPs and propolis improved the mechanical strength of the pullulan/chitosan-based film by ~25%. Additionally, the water vapor barrier property and hydrophobicity of the film were slightly increased. In addition, the pullulan/chitosan-based biocomposite film exhibited good antioxidant activity due to the propolis and excellent antibacterial activity against foodborne pathogens due to the ZnONPs. The developed edible pullulan/chitosan-based film was used for pork belly packaging, and the peroxide value and total number of aerobic microorganisms were significantly reduced in meat wrapped with the pullulan/chitosan/ZnONPs/propolis film.

Sulfur Quantum Dots as Fillers in Gelatin/Agar-Based Functional Food Packaging Films

“…Antioxidant activity is another important functional property of SQDs that SNPs do not possess. Various antioxidants such as natural plant extracts, ,, essential oils, ,− polyphenol compounds, , or food additives such as citric acid and ascorbic acid have been used to impart antioxidant activity to biopolymers for food packaging. On the other hand, SQD was more efficient as a multifunctional nanomaterial with strong antioxidant and antibacterial activity.…”

Ciprofloxacin-Loaded Titanium Nanotubes Coated with Chitosan: A Promising Formulation with Sustained Release and Enhanced Antibacterial Properties

“…The 2867 cm −1 peak is related to CH 2 stretching [ 42 ]. The peak at 1024 cm −1 is due to the vibrations of C–O in Cs [ 43 ], whereas that centered at 1375 cm −1 is ascribed to asymmetrical C–H bending of the CH 2 groups [ 44 ]. The peaks at 1655 and 1590 cm −1 are due to –C=O stretching (amide I) and NH stretching (amide II) [ 45 ].…”

Recent advances in biobased and biodegradable polymer nanocomposites, nanoparticles, and natural antioxidants for antibacterial and antioxidant food packaging applications

“…Similarly, the TiO 2 NPs and red APE synergism in CS‐based biodegradable matrices enhanced the antimicrobial and antioxidant properties of the packaging, showing the potential to extend the shelf‐life of foods (Lan et al., 2021). Moreover, a series of hybrid CS nanocomposites and their derivatives with other inorganic NPs, plant extract, and EOs have been reported to enhance the physicochemical properties of films, including tensile strength, oxygen barrier, and UV blocking (Roy et al., 2021; Sadadekar et al., 2022; Zhang et al., 2019).…”