Biopolymers in Multilayer Films for Long‐Lasting Protective Food Packaging: A Review

Sustainable biodegradable coatings for food packaging: challenges and opportunities

“…However, effective coating techniques on biopolyesters have been demonstrated, with the main goal of improving their barrier and making them antioxidant or antibacterial for food quality preservation. 81 For instance, Figueroa-Lopez et al 162 developed PHAs-based active multilayers electrospin-coated with CNC and PHBV active layer containing oregano essential oil (OEO) and ZnONPs (as antibacterial material) (Fig. 13a and b).…”

“…Laminates or coatings on biopolyesters are a reliable and emerging way for producing lightweight multilayer food packaging to minimize waste generation, reduce raw material use, and lower transportation costs. 81 3.2.2.1 Polyhydroxyalkanoate (PHA) coatings. PHAs are biodegradable biopolyesters associated with "cradle-to-cradle" sustainability (versus "cradle-to-grave" dead end for oil-based resources) 168,169 and are considered the carbon source synthesized intracellularly by microorganisms.…”

Grapefruit Seed Extract-Added Functional Films and Coating for Active Packaging Applications: A Review

“…[ 58 , 59 ]. In general, fruit packaging films have high vapor and gas barrier properties, so it is expected that the respiration of the fruit during storage creates a low oxygen environment and consequently limits the respiration rate [ 59 , 60 ]. Therefore, this section briefly describes the barrier properties of GSE with various packaging films.…”

“…Bioplastic-based films are generally insoluble in water, whereas biopolymer-based films tend to dissolve quickly, limiting their use as packaging materials. Even though biopolymers show high water solubility, in some applications, high water solubility can still be required where the film should be melted before use [ 60 , 61 ]. The mixing of GSE in the packaging matrix showed some impact on the packaging film’s water solubility and swelling degree.…”

Advanced biopolymer‐based edible coating technologies for food preservation and packaging

“…As soon as the multilayer method has become more popular, an active ingredient/layer is then inserted in between the inner (control) and outer (barrier) layers establishing a three‐layer coating architecture (see Figure 4a), which has been the most used structure nowadays (Wang et al., 2022). First, the barrier layer, which is the outmost layer, acts as a shield for the active layer and product (Bayer, 2021). It is made of substances that provide a good barrier to moisture and gas that can initiate food deterioration (Mazerolles et al., 2020).…”