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Allomorphic Transformation of Cellulose for Enhancing Enzymatic Accessibility.

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Title: Allomorphic Transformation of Cellulose for Enhancing Enzymatic Accessibility.
Authors: Kim, Geon-Woo1 (AUTHOR), Lee, Yunsong1 (AUTHOR), Kim, Seungjun1 (AUTHOR), Lee, Yong Ju1 (AUTHOR), Lee, Do Young1 (AUTHOR), Lee, Tai-Ju1 (AUTHOR), Kim, Hyoung Jin1 (AUTHOR) hyjikim@kookmin.ac.kr
Source: Polymers (20734360). Feb2026, Vol. 18 Issue 4, p441. 14p.
Subjects: Cellulose, Polymorphic transformations, Plant biomass, Chemical processes, Sodium hydroxide, Ethylenediamine, Crystal structure
Abstract: In recent decades, lignocellulosic biomass has attracted increasing attention as a sustainable alternative to fossil-fuel-based resources. However, the compact and highly crystalline structure of cellulose remains a major limitation to its effective utilization. In this study, the allomorphic transformation of cellulose was induced through chemical treatments using sodium hydroxide (NaOH) and ethylenediamine (EDA), enabling the conversion of native cellulose I into cellulose II and cellulose III, respectively. The resulting changes in the crystalline structure were systematically investigated using X-ray diffraction and Raman spectroscopy. Both NaOH- and EDA-treated celluloses exhibited enhanced enzymatic digestibility compared to untreated cellulose, consistent with the observed modifications in the crystal structure. Nevertheless, some results indicate that crystalline structure is not an absolute determining factor, but rather one of several parameters, including specific surface area, particle size, and degree of polymerization. [ABSTRACT FROM AUTHOR]
Copyright of Polymers (20734360) is the property of MDPI 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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PubType: Academic Journal
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  Data: Allomorphic Transformation of Cellulose for Enhancing Enzymatic Accessibility.
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  Data: <searchLink fieldCode="AR" term="%22Kim%2C+Geon-Woo%22">Kim, Geon-Woo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Yunsong%22">Lee, Yunsong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Seungjun%22">Kim, Seungjun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Yong+Ju%22">Lee, Yong Ju</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Do+Young%22">Lee, Do Young</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Tai-Ju%22">Lee, Tai-Ju</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Hyoung+Jin%22">Kim, Hyoung Jin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hyjikim@kookmin.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Feb2026, Vol. 18 Issue 4, p441. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Cellulose%22">Cellulose</searchLink><br /><searchLink fieldCode="DE" term="%22Polymorphic+transformations%22">Polymorphic transformations</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+biomass%22">Plant biomass</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+processes%22">Chemical processes</searchLink><br /><searchLink fieldCode="DE" term="%22Sodium+hydroxide%22">Sodium hydroxide</searchLink><br /><searchLink fieldCode="DE" term="%22Ethylenediamine%22">Ethylenediamine</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+structure%22">Crystal structure</searchLink>
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  Data: In recent decades, lignocellulosic biomass has attracted increasing attention as a sustainable alternative to fossil-fuel-based resources. However, the compact and highly crystalline structure of cellulose remains a major limitation to its effective utilization. In this study, the allomorphic transformation of cellulose was induced through chemical treatments using sodium hydroxide (NaOH) and ethylenediamine (EDA), enabling the conversion of native cellulose I into cellulose II and cellulose III, respectively. The resulting changes in the crystalline structure were systematically investigated using X-ray diffraction and Raman spectroscopy. Both NaOH- and EDA-treated celluloses exhibited enhanced enzymatic digestibility compared to untreated cellulose, consistent with the observed modifications in the crystal structure. Nevertheless, some results indicate that crystalline structure is not an absolute determining factor, but rather one of several parameters, including specific surface area, particle size, and degree of polymerization. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Polymers (20734360) is the property of MDPI 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: 10.3390/polym18040441
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 441
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      – SubjectFull: Cellulose
        Type: general
      – SubjectFull: Polymorphic transformations
        Type: general
      – SubjectFull: Plant biomass
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      – SubjectFull: Chemical processes
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      – SubjectFull: Sodium hydroxide
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      – SubjectFull: Ethylenediamine
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      – SubjectFull: Crystal structure
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      – TitleFull: Allomorphic Transformation of Cellulose for Enhancing Enzymatic Accessibility.
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            NameFull: Kim, Geon-Woo
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              Text: Feb2026
              Type: published
              Y: 2026
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