Effective strategies of sustained release and retention enhancement of essential oils in active food packaging films/coatings

Three functional packaging films were prepared by adding quercetin into three different polymers, carboxymethyl cellulose (CMC), gelatin, and poly(lactic acid) (PLA). Quercetin was more compatible ...

Fabrication of Quercetin-Loaded Biopolymer Films as Functional Packaging Materials

Preparation and characterization of B, S, and N-doped glucose carbon dots: Antibacterial, antifungal, and antioxidant activity

Inorganic nanoparticles (NPs) and natural antioxidant compounds are an emerging trend in the food industry. Incorporating these substances in biobased and biodegradable matrices as polysaccharides (e.g., starch, cellulose, and chitosan) and proteins has highlighted the potential in active food packaging applications due to more significant antimicrobial, antioxidant, UV blocking, oxygen scavenging, water vapor permeability effects, and low environmental impact. In recent years, the migration of metal NPs and metal oxides in food contact packaging and their toxicological potential have raised concerns about the safety of the nanomaterials. In this review, we provide a comprehensive overview of the main biobased and biodegradable polymer nanocomposites, inorganic NPs, natural antioxidants, and their potential use in active food packaging. The intrinsic properties of NPs and natural antioxidant actives in packaging materials are evaluated to extend shelf-life, safety, and food quality. Toxicological and safety aspects of inorganic NPs are highlighted to understand the current controversy on applying some nanomaterials in food packaging. The synergism of inorganic NPs and plant-derived natural antioxidant actives (e.g., vitamins, polyphenols, and carotenoids) and essential oils (EOs) potentiated the antibacterial and antioxidant properties of biodegradable nanocomposite films. Biodegradable packaging films based on green NPs-this is biosynthesized from plant extracts-showed suitable mechanical and barrier properties and had a lower environmental impact and offered efficient food protection. Furthermore, AgNPs and TiO2 NPs released metal ions from packaging into contents insufficiently to cause harm to human cells, which could be helpful to understanding critical gaps and provide progress in the packaging field.

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

chilled meat is extremely susceptible to microbial contamination during processing and storage. Therefore, a new edible starch-based antibacterial composite film with thyme oil microemulsions(ME) or microcapsules(TMS) was prepared. The slow-release characteristic, bacteriostatic property and the preservation effect on chilled meat of the films were evaluated. The results showed that the cumulative release rates of composite films containing 5% microemulsion and 5% microcapsule were much less than the film containing 5% thyme oil. The antibacterial effect of film containing thyme oil microemulsion (ME-S) was stronger than that of film containing thyme oil microcapsule (TMS-S), but both of their antibacterial effect increased as the concentration increased. The overall fresh-keeping effect of composite films on chilled meat at 0–4 was blank

Peng Yunyan

Papers

Effect of potato starch-based antibacterial composite films with thyme oil microemulsion or microcapsule on shelf life of chilled meat