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This study developed a novel biobased nanocomposite film using konjac glucomannan (KGM) and modified MXene with natural deep eutectic solvents (NADES). The innovative food packaging effectively extends raspberry shelf life while maintaining fruit quality.

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Area of Science:

  • Food Science and Technology
  • Materials Science
  • Polymer Science

Background:

  • Natural polysaccharide films offer safety and biodegradability but suffer from poor mechanical and barrier properties.
  • Developing effective packaging for perishable fruits like raspberries remains a significant challenge.
  • Enhancing the functionality of biobased films is crucial for sustainable food preservation.

Purpose of the Study:

  • To create a novel biobased nanocomposite film for improved food packaging.
  • To enhance the mechanical strength, water resistance, and barrier properties of natural films.
  • To investigate the application of konjac glucomannan (KGM), gallic acid-modified MXene (MXene@GA), and natural deep eutectic solvents (NADES) in fruit preservation.

Main Methods:

  • Incorporation of konjac glucomannan (KGM) and gallic acid-modified MXene (MXene@GA) into a nanocomposite film.
  • Design and utilization of three natural deep eutectic solvent (NADES) systems (glycine-citrate-caffeic acid, l-carnitine-citrate-caffeic acid, amidosulfonic acid-citrate-caffeic acid) as green plasticizers.
  • Characterization of film properties including mechanical strength, water resistance, UV protection, and antioxidant activity.
  • Application of the developed nanocomposite films for raspberry preservation under different storage conditions.

Main Results:

  • The novel nanocomposite films demonstrated significantly enhanced mechanical strength, UV protection, water resistance, and antioxidant activity.
  • The inclusion of MXene@GA and NADES improved the dispersion and interaction within the polymer matrix, boosting mechanical and barrier performance.
  • Raspberry preservation using the developed films effectively extended shelf life at both room temperature and 4 °C.
  • Fruit quality was maintained throughout the storage period when using the innovative packaging.

Conclusions:

  • The developed biobased nanocomposite film offers a practical and innovative solution for perishable food packaging.
  • The combination of KGM, MXene@GA, and NADES creates a multifunctional material with superior properties.
  • This research contributes to the development of safe, sustainable, and high-performance food packaging materials.