Biopolymer-Based Active and Intelligent Food Packaging: Recent Advances in Materials, Technologies, and Applications

Area of Science:

• Materials Science
• Food Science
• Polymer Science

Background:

• The food packaging industry is shifting from petroleum-based materials to sustainable biopolymer alternatives.
• Biopolymers offer enhanced functionality beyond basic containment and protection.
• There's a growing need for eco-friendly packaging solutions that also improve food preservation.

Purpose of the Study:

• To review recent advancements in active and intelligent food packaging systems based on natural biopolymers.
• To explore the physicochemical properties, functional performance, and applications of various biopolymer-based packaging.
• To critically evaluate challenges and emerging solutions for commercial viability.

Main Methods:

• Comprehensive literature review of research on starch, chitosan, cellulose, pectin, bacterial cellulose, pullulan, gelatin, zein, and dextran-based packaging.
• Analysis of integrated antimicrobial agents, colorimetric indicators, and nanofillers.
• Evaluation of advanced fabrication techniques and chemical modifications.

Main Results:

• Development of multifunctional biopolymer packaging with antimicrobial and quality-monitoring capabilities.
• Demonstrated potential for extending shelf life and reducing environmental impact.
• Identification of specific biopolymers and composite formulations for preserving meat, fish, and fruits.

Conclusions:

• Biopolymer-based active and intelligent food packaging presents a sustainable alternative to conventional materials.
• Overcoming challenges in mechanical strength, water resistance, and scalability is crucial for industrial adoption.
• Further research on standardization, life cycle assessments, and consumer acceptance is needed for market integration.