Sustainable active packaging developed using starch-based foam incorporating 1-Methylcyclopropene@α-Cyclodextrin

Area of Science:

• Food Science and Technology
• Materials Science
• Agricultural Engineering

Background:

• Fruit spoilage during long-distance transport is a major challenge.
• 1-Methylcyclopropene (1-MCP) effectively inhibits ethylene and slows ripening, but its controlled release is difficult with current materials.
• Existing carriers like paper, chitosan, and microcapsules are unsatisfactory for 1-MCP delivery.

Purpose of the Study:

• To develop an innovative and sustainable active packaging system for controlled 1-MCP release.
• To improve fruit freshness preservation during long-distance transportation.
• To enhance the shelf life and quality of climacteric fruits.

Main Methods:

• Development of a "sandwich" structured packaging using starch-based foam sheets.
• Utilizing the hydrophilic and porous properties of the foam for controlled 1-MCP release.
• Assessing the mechanical durability for physical damage protection during transport.

Main Results:

• Achieved significant reductions in ethylene production (up to 60.49%) and respiration rates (up to 57.50%).
• Extended the shelf life of climacteric fruits by 5-10 days.
• Demonstrated effective cushioning to minimize physical damage.

Conclusions:

• The novel starch-based foam packaging provides a controllable and slow release of 1-MCP.
• This active packaging system effectively prolongs fruit shelf life and maintains quality.
• The packaging is economical, environmentally friendly, and biodegradable.