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Development of Bio-Based Films and 3D Objects from Apple Pomace.

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Apple pomace, a food industry waste, can be transformed into sustainable biomaterials. This research developed eco-friendly methods to create bio-based films and fiberboards from apple pomace, offering potential for packaging and tableware.

Keywords:
apple pomacebio-based filmbiomaterialscompression moldingfiberboardsolution casting

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Area of Science:

  • Materials Science
  • Biotechnology
  • Sustainable Engineering

Background:

  • Apple pomace is a significant agricultural byproduct with disposal challenges.
  • Valorization of apple pomace into biomaterials addresses waste management and promotes circular economy principles.
  • Understanding the composition of apple pomace (sugars, hemicelluloses, cellulose, lignin) is crucial for material development.

Purpose of the Study:

  • To develop sustainable biomaterials from apple pomace.
  • To investigate the effects of different plasticizers (glycerol vs. natural sugars) on biomaterial properties.
  • To explore the production of bio-based films and 3D fiberboards from apple pomace.

Main Methods:

  • Chemical characterization of apple pomace components.
  • Production of bio-based films via solution casting.
  • Fabrication of 3D fiberboards using compression molding.
  • Mechanical testing (tensile strength, elongation) of produced biomaterials.

Main Results:

  • Apple pomace contains substantial free sugars, hemicelluloses, cellulose, and lignin.
  • Films plasticized with natural sugars exhibited higher elongation compared to glycerol-plasticized films.
  • Compression molded fiberboards showed good mechanical properties, suitable for structural applications.
  • Biomaterials demonstrated potential for applications in edible/disposable tableware and food packaging.

Conclusions:

  • Apple pomace is a viable feedstock for producing sustainable biomaterials.
  • The choice of plasticizer significantly influences the mechanical properties of apple pomace-based films.
  • Compression molding is effective for creating 3D objects from apple pomace, leveraging polysaccharide self-binding properties.