4.7 Article

Environmental Consequences of Shelf Life Extension: Conventional versus Active Packaging for Fresh-Cut Salads

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AGRONOMY-BASEL
卷 13, 期 11, 页码 -

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MDPI
DOI: 10.3390/agronomy13112749

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active packaging; environmental performance; fresh product packaging; LCA; sustainable production

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The use of active coatings in fresh food packaging is an innovative technique that improves the functional properties of films and reduces food waste. This study compares the environmental performance of active packaging (AP) and conventional packaging (CP) for fresh-cut products, and finds that AP has a positive impact on reducing food production and environmental effects.
The use of active coatings in fresh food packaging is an innovative technique that optimizes the functional properties of films, resulting in a longer product shelf life and reduced food waste. But, which is more sustainable, active packaging (AP) or conventional packaging (CP) for the packaging of fresh-cut products? To answer this research question, this study analyzes the environmental performance of AP during its life cycle for packaging a minimally processed fresh salad mix compared with CP, in terms of its manufacture and use. The AP is a bag that includes a bioactive component, oregano essential oil (OEO), which is an inhibitor of microbial growth, incorporated into an ethylene vinyl alcohol copolymer (EVOH) coating on a conventional polypropylene (PP) film. To this end, a Life Cycle Assessment (LCA) was carried out based on ISO 14040 and 14044, using the ReCiPe methodology. The results showed that using active packaging has a beneficial affect, reducing the amount of produced food by 30% compared with conventional packaging over the same period. The reductions in the studied impact categories were greater than 50% in most of them, with a 62% reduction in global warming. The proposed sensitivity analysis showed the difference between the disposal or treatment of waste generated by the packaging production process and the packaged product, indicating that this step is of great importance for the environmental impacts and sustainability of this process. In 80% of the scenarios analyzed, the AP achieved better results than the CP in terms of damage categories.

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