Active Food Packaging Made of Biopolymer-Based Composites

Area of Science:

• Materials Science
• Food Science
• Environmental Science

Background:

• Conventional plastic food packaging derived from fossil fuels presents environmental sustainability challenges due to poor degradability.
• Natural biopolymers are gaining attention as eco-friendly alternatives owing to their abundance, biocompatibility, biodegradability, and non-toxicity.
• Active packaging systems utilize these biopolymers to surpass conventional barrier functions, actively maintaining food quality.

Purpose of the Study:

• To provide a comprehensive review of natural biopolymer materials for food packaging applications.
• To compare and discuss the antioxidant, water barrier, and oxygen barrier properties of biopolymer-based composites.
• To review biopolymer composites integrated with antimicrobial agents and discuss their mechanisms of action.

Main Methods:

• Literature review of natural biopolymer materials used in food packaging.
• Comparative analysis of antioxidant, water barrier, and oxygen barrier properties of biopolymer composites.
• Review of antimicrobial agents (inorganic nanostructures, natural products) integrated into biopolymer matrices.

Main Results:

• Natural biopolymer composites demonstrate promising antioxidant, water barrier, and oxygen barrier functionalities.
• Integration of antimicrobial agents into biopolymer composites enhances their efficacy in inhibiting microbial growth.
• Biopolymer-based active packaging systems effectively maintain food quality by preventing spoilage.

Conclusions:

• Natural biopolymer composites represent a sustainable and effective approach to active food packaging.
• These materials offer a viable alternative to conventional plastics, mitigating environmental concerns.
• Active food packaging systems based on biopolymers contribute to reduced microbial contamination and extended food shelf life.