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Investigating the Environmental Benefits of Novel Films for the Packaging of Fresh Tomatoes Enriched with Antimicrobial and Antioxidant Compounds through Life Cycle Assessment

Author

Listed:
  • Christina Tsouti

    (Draxis Environmental SA, Athens Branch, 317 Mesogeion Avenue & Lokridos, 15231 Athens, Greece)

  • Christina Papadaskalopoulou

    (Draxis Environmental SA, Athens Branch, 317 Mesogeion Avenue & Lokridos, 15231 Athens, Greece)

  • Angeliki Konsta

    (Draxis Environmental SA, Athens Branch, 317 Mesogeion Avenue & Lokridos, 15231 Athens, Greece)

  • Panagiotis Andrikopoulos

    (Draxis Environmental SA, Athens Branch, 317 Mesogeion Avenue & Lokridos, 15231 Athens, Greece)

  • Margarita Panagiotopoulou

    (Laboratory of Process Analysis and Design, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechneiou, 15780 Athens, Greece)

  • Sofia Papadaki

    (Laboratory of Process Analysis and Design, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechneiou, 15780 Athens, Greece)

  • Christos Boukouvalas

    (Laboratory of Process Analysis and Design, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechneiou, 15780 Athens, Greece)

  • Magdalini Krokida

    (Laboratory of Process Analysis and Design, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechneiou, 15780 Athens, Greece)

  • Katerina Valta

    (Draxis Environmental SA, Athens Branch, 317 Mesogeion Avenue & Lokridos, 15231 Athens, Greece)

Abstract

Food systems account for 21–37% of total net anthropogenic greenhouse gas emissions. At the same time, in the European Union, the retail and consumption stages account for half of the total food waste produced across the entire food supply chain. For this, there is a continuous development of novel packaging materials to extend the shelf life of fresh products and thus reduce food waste produced at these stages. The aim of the present research is to examine the environmental performance of such materials enriched with antioxidant and antimicrobial compounds by considering their effect on the shelf-life extension of packed fresh tomatoes. In particular, two novel packaging films, a film with incorporated tomato leaf-stem extract and Flavomix through extrusion and a film coated with zein nanofibers containing the aforementioned bio-active compounds through electrospinning were studied for the packaging of fresh tomatoes and compared to conventional polypropylene packaging film. An antioxidant effect was recorded for both films achieving a shelf life prolongation of three days. Moreover, both films exhibited in vitro antibacterial activity against Staphylococcus aureus and Escherichia coli . In addition, antimicrobial activity was observed against yeast and molds and the total viable bacterial count in packed fresh tomatoes. The environmental benefits were evaluated using a life cycle assessment. The results indicated a decrease in the environmental impacts by 14% considering the entire food supply chain for both novel films. The environmental performance of novel film production by extrusion shows an increased impact of 31% compared to conventional film, while nanocoating shows an increased impact of 18%.

Suggested Citation

  • Christina Tsouti & Christina Papadaskalopoulou & Angeliki Konsta & Panagiotis Andrikopoulos & Margarita Panagiotopoulou & Sofia Papadaki & Christos Boukouvalas & Magdalini Krokida & Katerina Valta, 2023. "Investigating the Environmental Benefits of Novel Films for the Packaging of Fresh Tomatoes Enriched with Antimicrobial and Antioxidant Compounds through Life Cycle Assessment," Sustainability, MDPI, vol. 15(10), pages 1-22, May.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:10:p:7838-:d:1143966
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    References listed on IDEAS

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