Chitosan-based aerogel food active packaging with integrated preservation and buffering functions

Area of Science:

• Materials Science
• Food Science
• Biotechnology

Background:

• Post-harvest handling of berries and vegetables often leads to spoilage due to impact and collision.
• Developing effective buffer packaging with integrated impact resistance and preservation is crucial for reducing losses.

Purpose of the Study:

• To prepare chitosan-based buffer packaging with enhanced mechanical damage and microbial infection resistance for berries.
• To create a multifunctional protective aerogel buffer package using specific composite materials.

Main Methods:

• Preparation of chitosan-based multifunctional protective aerogel buffer package.
• Incorporation of montmorillonite, clove essential oil, and nanocellulose immobilized copper nanoparticles antibacterial fiber (CMC-Cu).

Main Results:

• The CMC-Cu aerogel buffer packaging demonstrated excellent impact resistance, reducing fruit and vegetable damage.
• Immobilization of components led to delayed release of antibacterial and antioxidant agents, ensuring long-lasting preservation.
• Achieved nearly 100% inhibition of Escherichia coli and Staphylococcus aureus, with good antioxidant effects.
• Protected blueberries from damage during simulated transport, extending storage by 3 days.

Conclusions:

• The developed aerogel active packaging reduces loss and improves efficiency in berry transportation and storage.
• This offers a novel approach for the development of advanced food active packaging solutions.