Enhanced properties of TEMPO-oxidized bacterial cellulose films via eco-friendly non-pressurized hot water vapor treatment for sustainable and smart food packaging

Rahmadiawan D 1 , Abral H 2 , Azka MA 3 , Sapuan SM 3 , Admi RI 4 , Shi SC 1 Show all authors , Zainul R 5 , Azril 6 , Zikri A 7 , Mahardika M 8

Affiliations 

  • 1 Department of Mechanical Engineering, National Cheng Kung University (NCKU) Tainan Taiwan
  • 2 Department of Mechanical Engineering, Andalas University 25163 Padang Sumatera Barat Indonesia habral@yahoo.com
  • 3 Advanced Engineering Materials and Composites Research Centre, Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
  • 4 Laboratory of High-Temperature Coating, Research Center for Physics Indonesian Institute of Sciences (LIPI) Serpong Indonesia
  • 5 Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Padang West Sumatera 25171 Indonesia
  • 6 Department of Biomedical Engineering, National Cheng Kung University Tainan Taiwan
  • 7 Department of Mechanical Engineering, Faculty of Engineering, Bursa Uludag University Bursa 16850 Turkey
  • 8 Research Center for Biomass and Bioproducts, National Research and Innovation Agency (BRIN) Cibinong Indonesia
RSC Adv, 2024 Sep 12;14(40):29624-29635.
PMID: 39297036 DOI: 10.1039/d4ra06099g

Abstract

Developing a simple and environmentally friendly method to vary the physical, mechanical, and thermal properties of cellulose films is of great importance. This study aimed to characterize 2,2,6,6-tetramethylpiperidinyl-1-oxyl (TEMPO)-oxidized bacterial cellulose (BC) films prepared using non-pressurized hot water vapor (NPHWV) method. A wet BC-pellicle that had been oxidized with TEMPO was treated with NPHWV for 60, 120, and 240 minutes, respectively. As a control, a TEMPO-oxidized BC (TOBC) film without NPHWV was prepared. The results show that the longer NPHWV duration of the TOBC film increased the tensile and thermal properties. This film became more hydrophobic and showed lower moisture absorption, thermal conductivity and organic solvent uptake, more crystalline structure, and higher fiber density after NPHWV treatment. The acquired results provide a simple, inexpensive, and ecologically friendly method for varying TOBC film properties.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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