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A new sodium alginate biofoam effectively manages moisture in frozen food packaging. This eco-friendly material preserves the quality of frozen fried chicken, reducing ice crystal damage and extending shelf life.

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Area of Science:

  • Food Science
  • Materials Science
  • Sustainable Packaging

Background:

  • Frozen food quality degrades due to ice crystal formation during storage.
  • Sustainable bio-based packaging solutions for frozen foods are limited.
  • Alginate biofoams offer potential for improved food packaging.

Purpose of the Study:

  • To synthesize and evaluate a sodium alginate-based biofoam for frozen fried chicken packaging.
  • To compare the performance of alginate biofoam with conventional packaging materials.
  • To assess the impact of alginate biofoam on the physicochemical quality of frozen foods.

Main Methods:

  • Facile one-pot synthesis of sodium alginate biofoam.
  • Characterization of biofoam's moisture, mechanical, and optical properties.
  • Assessment of frozen fried chicken quality (moisture, color, texture, pH, lipid oxidation) under various freezing conditions.

Main Results:

  • Alginate biofoam demonstrated over 2400% moisture absorption, indicating excellent moisture management.
  • Packaged chicken showed reduced moisture loss, lower lipid oxidation, and better color/texture stability compared to plastic and paper.
  • Biofoam packaging significantly improved quality preservation, especially under freeze-thaw cycles.

Conclusions:

  • Sodium alginate biofoam is a promising eco-friendly material for frozen food packaging.
  • The biofoam's properties effectively mitigate ice crystal-induced quality deterioration.
  • This material can help maintain the physicochemical integrity of frozen ready-to-eat foods.