By: Dr. Maryam Adilah Zainal Arifin

Senior Lecturer

Faculty of Food Science and Technology

UPM

Biodegradable packaging has emerged as a key innovation in modern food systems, offering a sustainable alternative to petroleum-based plastics. These materials are designed to decompose through natural biological processes into non-toxic end products such as water, carbon dioxide, and biomass. They are commonly derived from renewable sources, including starch, cellulose, proteins, and microbial polymers. Materials such as polylactic acid (PLA), as well as protein- and starch-based films, are increasingly explored for food packaging applications due to their potential to combine functional performance with environmental responsibility. Unlike traditional plastics, biodegradable materials are intended to minimize long-term environmental persistence after disposal.

Beyond environmental benefits, biodegradable packaging must provide essential functional requirements in food protection. Packaging materials are expected to maintain food safety, quality, and shelf life by acting as effective barriers against moisture, oxygen, and physical damage. Recent advances in material science have significantly improved the mechanical strength, flexibility, and barrier properties of biodegradable polymers, expanding their suitability across a wide range of food products. Although challenges remain, ongoing research continues to refine these materials to enhance their performance.

Biodegradable packaging also supports global sustainability initiatives and aligns closely with the United Nations Sustainable Development Goals (SDGs). Its development contributes directly to SDG 12 (Responsible Consumption and Production) by promoting the use of renewable resources and more sustainable end-of-life management. Additionally, it supports SDG 14 (Life Below Water) and SDG 15 (Life on Land) by reducing the risk of persistent plastic pollution in aquatic and terrestrial ecosystems.

Applications of biodegradable packaging are rapidly expanding across the food sector. These materials are increasingly used for fresh produce, dry foods, and single-use food products, where relatively short product lifespans align well with biodegradable solutions. As consumer awareness grows and regulatory pressures intensify, interest in biodegradable packaging continues to increase, driving both innovation and industrial adoption.

While early developments primarily focused on replacing conventional plastics, current research is shifting toward enhancing material functionality. Biodegradable packaging is no longer viewed solely as a passive barrier but as a platform for advanced packaging technologies. This evolution opens opportunities for systems that go beyond containment to actively contribute to food quality and safety.

In the next article of this series, we will explore active packaging and examine how biodegradable materials are being engineered to interact with food and its surrounding environment. Building on the foundation of biodegradable packaging, active systems aim to extend shelf life, improve food quality, and enhance safety while maintaining sustainability at their core.

Date of Input: 20/01/2026 | Updated: 20/01/2026 | nurulizzah