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A scalable solvent-exchange strategy for the drying of colorless Japanese cedar (Cryptomeria japonica).

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Title: A scalable solvent-exchange strategy for the drying of colorless Japanese cedar (Cryptomeria japonica).
Authors: Chin, Yi Hien1,2 (AUTHOR) yi_hien.chin@uca.fr, Horikawa, Yoshiki3 (AUTHOR), Vial, Christophe1 (AUTHOR), Gril, Joseph1,4 (AUTHOR), Moutou Pitti, Rostand1,5 (AUTHOR), Ouldboukhitine, Salah-Eddine1 (AUTHOR), Labonne, Nicolas2 (AUTHOR), Biwole, Pascal1,6,7 (AUTHOR)
Source: Drying Technology. 2025, Vol. 43 Issue 3, p510-526. 17p.
Subjects: Cryptomeria japonica, Lumber drying, Wood, Tensile architecture, Preservation of wood
Abstract: The thermal insulation properties of wood can be improved by wood modification nanotechnology, but scaling up drying techniques remains a challenge. This study aims to enhance the industrial feasibility of drying colorless (lignin-free) wood by solvent-exchange strategy. In this work, the delignification of Japanese cedar wood was applied through combined organosolv and sodium chlorite bleaching, and different drying techniques were compared to analyze their effects on porosity and dimensional stability, with water, ethanol, or acetone as solvents. The results show that the dimensional stability of colorless wood is strongly influenced by the liquid's surface tension in the porous structure. Ethanol-exchanged samples dried at 80 °C showed the best balance between drying efficiency and preservation of wood structure, reducing density to 0.16 g cm3 and increasing specific surface area to 7.2 m2 g−1. The results describe how the drying step is optimized for the potential large-scale production of functionalized wood scaffolds or bio-based thermal insulators. The findings contribute to understanding colorless wood drying mechanisms and guide the selection of appropriate techniques for desired end-use properties, advancing wood modification nanotechnology. [ABSTRACT FROM AUTHOR]
Copyright of Drying Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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PubTypeId: academicJournal
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  Data: A scalable solvent-exchange strategy for the drying of colorless Japanese cedar (Cryptomeria japonica).
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  Data: <searchLink fieldCode="AR" term="%22Chin%2C+Yi+Hien%22">Chin, Yi Hien</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> yi_hien.chin@uca.fr</i><br /><searchLink fieldCode="AR" term="%22Horikawa%2C+Yoshiki%22">Horikawa, Yoshiki</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vial%2C+Christophe%22">Vial, Christophe</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gril%2C+Joseph%22">Gril, Joseph</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moutou+Pitti%2C+Rostand%22">Moutou Pitti, Rostand</searchLink><relatesTo>1,5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ouldboukhitine%2C+Salah-Eddine%22">Ouldboukhitine, Salah-Eddine</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Labonne%2C+Nicolas%22">Labonne, Nicolas</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Biwole%2C+Pascal%22">Biwole, Pascal</searchLink><relatesTo>1,6,7</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Drying+Technology%22">Drying Technology</searchLink>. 2025, Vol. 43 Issue 3, p510-526. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Cryptomeria+japonica%22">Cryptomeria japonica</searchLink><br /><searchLink fieldCode="DE" term="%22Lumber+drying%22">Lumber drying</searchLink><br /><searchLink fieldCode="DE" term="%22Wood%22">Wood</searchLink><br /><searchLink fieldCode="DE" term="%22Tensile+architecture%22">Tensile architecture</searchLink><br /><searchLink fieldCode="DE" term="%22Preservation+of+wood%22">Preservation of wood</searchLink>
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  Label: Abstract
  Group: Ab
  Data: The thermal insulation properties of wood can be improved by wood modification nanotechnology, but scaling up drying techniques remains a challenge. This study aims to enhance the industrial feasibility of drying colorless (lignin-free) wood by solvent-exchange strategy. In this work, the delignification of Japanese cedar wood was applied through combined organosolv and sodium chlorite bleaching, and different drying techniques were compared to analyze their effects on porosity and dimensional stability, with water, ethanol, or acetone as solvents. The results show that the dimensional stability of colorless wood is strongly influenced by the liquid's surface tension in the porous structure. Ethanol-exchanged samples dried at 80 °C showed the best balance between drying efficiency and preservation of wood structure, reducing density to 0.16 g cm3 and increasing specific surface area to 7.2 m2 g−1. The results describe how the drying step is optimized for the potential large-scale production of functionalized wood scaffolds or bio-based thermal insulators. The findings contribute to understanding colorless wood drying mechanisms and guide the selection of appropriate techniques for desired end-use properties, advancing wood modification nanotechnology. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Drying Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/07373937.2024.2434890
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      – Code: eng
        Text: English
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        PageCount: 17
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      – SubjectFull: Lumber drying
        Type: general
      – SubjectFull: Wood
        Type: general
      – SubjectFull: Tensile architecture
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      – SubjectFull: Preservation of wood
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      – TitleFull: A scalable solvent-exchange strategy for the drying of colorless Japanese cedar (Cryptomeria japonica).
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            NameFull: Chin, Yi Hien
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            NameFull: Ouldboukhitine, Salah-Eddine
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              M: 02
              Text: 2025
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