Category: Science & Technology | Exam Relevance: OPSC Odisha Civil Services Examination
By: Brajabandhu Mahanta
In a significant innovation with strong implications for food safety, sustainability, and waste reduction, researchers at the National Institute of Technology (NIT), Rourkela have developed an intelligent food packaging film that can visually indicate the freshness of seafood. This ground-breaking discovery has placed Odisha’s premier institution at the forefront of food technology innovation.
A Smart Solution Using Natural Materials
The research, led by Prof. Preetam Sarkar, Associate Professor in the Department of Food Process Engineering at NIT Rourkela, has introduced a pH-sensitive film made from:
- Kodo millet starch (a climate-resilient grain)
- Gum tragacanth (a natural thickening agent)
- Beetroot peel extract (a food industry by-product rich in betalains)
These components work synergistically to detect spoilage in seafood. As seafood begins to decay, it releases volatile amines. The smart film responds by changing its colour, providing a real-time, non-invasive indicator of freshness.
Sustainability Meets Innovation
What sets this innovation apart is its commitment to sustainability:
- Biodegradable & Eco-Friendly: Unlike plastic packaging, the film decomposes naturally without harming the environment.
- Waste-to-Value: It utilizes beetroot peels, a common food waste, turning them into high-value antimicrobial and colour-changing components.
- Low Production Cost: While the current lab-scale cost is ₹900/kg, mass production could reduce it to ₹400–₹600/kg, making it commercially viable.
“Our goal was to create a material that is natural, effective, and scalable,” said Prof. Sarkar.
India’s First Use of Kodo Millet in Smart Packaging
This innovation marks the first reported use of Kodo millet starch for food packaging. It positions traditional Indian grains as modern scientific solutions, especially relevant under schemes promoting millet consumption (International Year of Millets 2023).
Global Collaboration and Real-World Testing
The research is not just a solo effort. It’s a collaborative venture involving:
- Lovely Professional University
- IIT Roorkee
- South Dakota State University, USA
Currently, the team is engaging with seafood industry stakeholders to test this innovative film in real-world supply chains and markets.
Relevance for OPSC Aspirants
For aspirants of the OPSC Odisha Civil Services Examination, this topic is important under:
- Science & Technology (GS Paper III)
- Environmental Sustainability
- Innovation & Research in Odisha
- Food Security and Safety
Understanding such breakthroughs helps connect local innovation with global challenges, a key skill in descriptive and analytical questions.
Conclusion
NIT Rourkela’s smart packaging film is a true confluence of tradition, science, and sustainability. It not only brings glory to Odisha’s academic and research capabilities but also offers a promising step towards food security, consumer safety, and environmental protection.