Researchers at Russia’s Reshetnev University have carried out a study aiming to devise an environmentally sound substitute for conventional plastic packaging. Experts focused on investigating the impact of additives, which increase material flexibility, on the characteristics of biodegradable films and the shelf life of preserved goods. Details regarding this project were presented in a university website publication.
During the course of their trials, the specialists evaluated three types of biocompatible plasticizers to determine precisely how they alter the material’s composition. It was observed that certain additives increased the film’s surface porosity and unevenness, whereas one specific component demonstrated almost no effect on the polymer’s original structure. This suggests superior compatibility between that substance and the base material, allowing for the preservation of the packaging’s robustness and consistency.
The research team further simulated product storage conditions across various environments, including aqueous, saline, and acidic settings. They determined that over time, the additives partially leach out from the material, with the most significant release occurring in acidic conditions, leading to a gradual degradation of the film’s mechanical attributes. However, when the most suitable plasticizer was employed, this effect was minimized.
The testing confirmed that a film based on biodegradable polymer, incorporating the optimal additive, proves maximally effective for safeguarding chicken fillets. Within this packaging, the product remained fresh for as long as seven days under refrigeration, without any compromise in flavor or deterioration of aroma. Significantly, in this optimal scenario, the degree of film components migrating into the food was minimal, staying well within established international safety standards.
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