Projects per year
Abstract
This study develops sustainable, antibacterial food packaging films using carboxymethylcellulose and fungi-derived chitin nanofibrils (ChNFs) reinforced with clay to enhance mechanical strength, moisture resistance, and gas barrier properties. ChNFs significantly improve tensile strength and permeability by forming a dense, hydrogen-bonded network within the carboxymethylcellulose matrix. However, excessive ChNF content led to agglomeration, reducing mechanical performance slightly. At 30% ChNFs content, films demonstrated antibacterial activity against Escherichia coli, Staphylococcus aureus, and Listeria monocytogenes and also presented a 52.1 ± 3.2% degradation rate in four weeks. Life cycle assessment revealed a reduced carbon footprint (5.0–5.3 kg CO₂-equiv. per kg film) and low plastic litter generation (35–44 g/kg), underscoring environmental benefits compared to conventional packaging. These carboxymethylcellulose/ChNF-based films are a promising, eco-friendly alternative for food packaging applications, offering antibacterial properties and enhanced sustainability in the packaging of perishable food products.
Original language | English |
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Article number | 110987 |
Number of pages | 13 |
Journal | Food Hydrocolloids |
Volume | 162 |
Early online date | 21 Dec 2024 |
DOIs | |
Publication status | E-pub ahead of print - 21 Dec 2024 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Antibacterial films
- Biodegradability
- Carboxymethylcellulose
- Food packaging
- Life cycle assessment
- Nanochitin
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IMD1/Kontturi: Intelligent Medical Device Solutions to Global Market
Kontturi, E. (Principal investigator), Abidnejad, R. (Project Member), Borges Vilches, J. (Project Member), Zhu, Y. (Project Member), Keerakkara Arumughan, V. (Project Member), Suutari, T. (Project Member), Mayer, F. (Project Member), Abousharabia, I. (Project Member), Helle, V. (Project Member), Smal, I. (Project Member), Phi, T.-L. (Project Member), Goyal, P. (Project Member) & Lerche, J. (Project Member)
01/03/2023 → 28/02/2026
Project: Business Finland: Strategic centres for science, technology and innovation (SHOK)
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VALUEBIOMAT: Bio-oils based polymeric composites; value chain from syntheisis to additive manufacturing
Seppälä, J. (Principal investigator), Äkräs, L. (Project Member), Revitzer, H. (Project Member), van Bochove, B. (Project Member), Baniasadi, H. (Project Member), Farzan, A. (Project Member), Dienel, K. (Project Member), Teotia, A. (Project Member), Borandeh, S. (Project Member) & Madani, M. (Project Member)
01/06/2019 → 28/02/2023
Project: Academy of Finland: Strategic research funding
Equipment
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Bioeconomy Research Infrastructure
Seppälä, J. (Manager)
School of Chemical EngineeringFacility/equipment: Facility
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OtaNano - Nanomicroscopy Center
Seitsonen, J. (Manager) & Rissanen, A. (Other)
OtaNanoFacility/equipment: Facility