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Vol. 36 No. 5 (2026): Journal of Science and Technology – Engineering and Technology for Sustainable Development (11/ 2026)
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Research article
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Dinh Mai, L., Tran Gia, H., Le Thi, V., Nguyen Thi Quynh, A., Nguyen Huy, T., Dao Minh, H., Ngo Van, H., & Phan Thi Tuyet, M. (2026). Microfibrilled Cellulose from Banana Stem Waste for High-Performance Bio Hydrogels. Engineering and Technology For Sustainable Development, 36(5). https://jst.vn/index.php/etsd/article/view/1109

Microfibrilled Cellulose from Banana Stem Waste for High-Performance Bio Hydrogels

Linh Dinh Mai1, Hung Tran Gia1, Vinh Le Thi2, Anh Nguyen Thi Quynh2, Tung Nguyen Huy2, Hieu Dao Minh2, Hoanh Ngo Van3, Mai Phan Thi Tuyet2,
1 School of Chemistry and Life Sciences, Hanoi University of Science and Technology, Ha Noi, Vietnam
2 VNU University of Science, Vietnam National University, Ha Noi, Vietnam
3 Institute of Chemistry and Materials, Ha Noi, Vietnam

Main Article Content

Abstract

process of alkaline pretreatment with 0.5M NaOH solution at 90°C for x h (x = 2, 4, 6, 8 h), bleaching with 5% wt. H2O2 solution at 80oC for 2h, and acid hydrolysis with 4M HNO3 solution at 70oC for 8h, respectively. Obtained MFC samples were characterized by Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), and X-Ray Diffraction (XRD). The results confirmed that increasing alkali-treated time from 2 h to 8 h raised the crystalline index from 66.1% to 84.3%, respectively, and revealed morphological transformation from hollow to ribbon fibers. Notably, the stable MFC suspensions were obtained at 2 h and 8 h, highlighting the potential of banana stem waste as a material for manufacturing MFC. These MFC samples were used as a performance enhancer for bio-hydrogel films. The addition of MFC significantly increased the mechanical properties and water vapour permeability (WVP) of the alginate-based hydrogel film. Results also revealed that the performance of the bio-hydrogel films was strongly dependent on the morphology and crystallinity of MFCs: MFC hollow fibers with low CrI favored vapor permeability, whereas MFC ribbon fibers with high CrI improved mechanical strength. The obtained results have demonstrated the potential conversion of banana stem waste to value-added products, MFC, and high-performance bio-hydrogel for food packaging applications.

Keywords

: Microfibrilled cellulose, Hollow fiber, Banana stem waste, Alkali treated time, Crystalline index.

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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