Enhanced ultrafine nanofibril biosynthesis of bacterial nanocellulose using a low-cost material by the adapted strain of Komagataeibacter xylinus MSKU 12.

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ID: 67501
2019
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Ranked #76 of 200 articles by views in International journal of biological macromolecules

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Abstract
Bacterial nanocellulose (BNC) is a renewable and biodegradable biopolymer which has currently received considerable attention due to the rapid increase in environmental issues. In this study, a cost-effective strategy for BNC production was successfully improved in the adapted strain, C30, which was obtained from Komagataeibacter xylinus MSKU 12 by a repetitive cultivation in a low-cost coconut water containing acetic acid and ethanol (CW-AE medium) at 37 °C. The adaptive procedure allowed the strain C30 to be adapted to grow and produce BNC with a higher yield in a limiting nutrient CW-AE medium, than that in a standard HS-AE medium. This strain could produce a high yield of BNC (9.69 g/L dry weight) in a low-cost medium, a modified CW-AE medium supplemented with sucrose and ammonium sulfate. Moreover, SEM images showed that BNC pellicle produced by the strain C30 in the modified CW-AE medium exhibited finer nanofibrils with a narrower range of width compared with those of MSKU 12 while no significant differences in their physicochemical characteristics were detected among these BNCs produced. Therefore, this finding demonstrates, not only the potential strain for the cost-effective BNC production at high temperature, but also the superior ultrafine nanofibrils production useful for further applications.
Reference Key
naloka2019enhancedinternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Naloka, Kallayanee;Matsushita, Kazunobu;Theeragool, Gunjana;
Journal International journal of biological macromolecules
Year 2019
DOI
S0141-8130(19)34284-9
URL
Keywords
komagataeibacter xylinus bacterial nanocellulose coconut water low-nutrient adaptation ultrafine nanofibrils

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