Innovative Polymer Solutions for Sustainable Food Packaging

Submission Deadline: 30 June 2025 View: 3 Submit to Special Issue

Guest Editors

Prof. Dr. Raja Venkatesan

Email: rajavenki101@gmail.com

Affiliation: School of Chemical Engineering, Yeungnam University

Homepage:

Research Interests: polymer synthesis, food packaging, polymer/inorganic (nano) composites

Summary

Biodegradable polymers like polylactic acid (PLA), polyhydroxyalkanoates (PHA), poly(butylene adipate-co-terephthalate) (PBAT), and starch-based materials have emerged as promising alternatives to conventional plastics. These materials are derived from renewable resources and can break down into non-toxic components under appropriate conditions, minimizing environmental impact.

Moreover, the addition of natural bio-based additives, such as essential oils, plant extracts, and antimicrobial agents, can further enhance the functionality of biodegradable films. These additives offer improved barrier properties, antioxidant activity, and antimicrobial effects, helping to inhibit microbial growth, prevent oxidation, and ultimately extend the shelf life of perishable food products. Incorporating nanotechnology into biodegradable packaging materials is also gaining traction. Nanoparticles, including silver, zinc oxide, and clay, have been shown to enhance the mechanical, thermal, and barrier properties of biodegradable films, while providing additional antimicrobial protection.

This research topic focuses on exploring the latest advancements in biodegradable packaging materials that incorporate natural and nanotechnology-based additives to improve food preservation. It aims to gather cutting-edge research on the development of innovative packaging solutions that meet both sustainability goals and consumer demands for safe and long-lasting food products.

· Explore and produce innovative biodegradable polymers from renewable sources, such as polylactic acid (PLA), polyhydroxyalkanoates (PHA), and starch-based materials, which can serve as eco-friendly alternatives to conventional plastics.

· Investigate ways to enhance the mechanical strength, barrier properties, and thermal stability of biodegradable packaging materials to ensure they meet the performance standards required for food packaging.

· Incorporate natural bio-based additives (e.g., essential oils, plant extracts) and advanced nanomaterials (e.g., nanoparticles) that provide antimicrobial, antioxidant, and oxygen/moisture barrier properties to extend the shelf life of food products.

· Encourage the design of packaging materials that are fully biodegradable or compostable, thus reducing plastic waste, contributing to the circular economy, and addressing global environmental challenges related to food packaging.

Keywords