Changes in the Dimensions of Lignocellulose Nanofibrils with Different Lignin Contents by Enzymatic Hydrolysis
Changes in the dimensions of lignocellulose nanofibrils (LCNFs) with different lignin contents from betung bamboo (<i>Dendrocalamus asper</i>) by enzymatic hydrolysis using endoglucanase (EG) were investigated. Lignin contents were adjusted from 3% to 27% by NaClO<sub>2</sub>...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-09-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/12/10/2201 |
| _version_ | 1797552601851494400 |
|---|---|
| author | Jae-Hyuk Jang Noriko Hayashi Song-Yi Han Chan-Woo Park Fauzi Febrianto Seung-Hwan Lee Nam-Hun Kim |
| author_facet | Jae-Hyuk Jang Noriko Hayashi Song-Yi Han Chan-Woo Park Fauzi Febrianto Seung-Hwan Lee Nam-Hun Kim |
| author_sort | Jae-Hyuk Jang |
| collection | DOAJ |
| description | Changes in the dimensions of lignocellulose nanofibrils (LCNFs) with different lignin contents from betung bamboo (<i>Dendrocalamus asper</i>) by enzymatic hydrolysis using endoglucanase (EG) were investigated. Lignin contents were adjusted from 3% to 27% by NaClO<sub>2</sub>/acetic acid treatment, and LCNFs were prepared using a wet disk-mill (WDM). The dimensions of the LCNFs significantly decreased with decreasing lignin content and increasing EG addition. With increasing EG content, the average diameter of the LCNFs significantly decreased, even though they contained parts of hemicellulose and lignin. The crystal structure showed the typical cellulose I structure in all samples, but the intensity of the diffraction peak slightly changed depending on the lignin and EG contents. The crystallinity index (CrI) values of the LCNFs increased a maximum of 23.8% (LCNF-L27) under increasing EG addition, regardless of the lignin content. With the EG addition of three times the LCNF amount, LCNF-L3 showed the highest CrI value (59.1%). By controlling the composition and structure of LCNFs, it is expected that the wide range of properties of these materials can extend the property range available for existing materials. |
| first_indexed | 2024-03-10T16:02:27Z |
| format | Article |
| id | doaj.art-2544ab6087054234adfaabad5d53e5ef |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T16:02:27Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-2544ab6087054234adfaabad5d53e5ef2023-11-20T15:06:14ZengMDPI AGPolymers2073-43602020-09-011210220110.3390/polym12102201Changes in the Dimensions of Lignocellulose Nanofibrils with Different Lignin Contents by Enzymatic HydrolysisJae-Hyuk Jang0Noriko Hayashi1Song-Yi Han2Chan-Woo Park3Fauzi Febrianto4Seung-Hwan Lee5Nam-Hun Kim6Department of Forest Biomaterials and Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, KoreaForestry and Forest Products Research Institute, Ibaraki 300-1244, JapanDepartment of Forest Biomaterials and Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, KoreaDepartment of Forest Biomaterials and Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, KoreaDepartment of Forest Products, Faculty of Forestry and Environment, IPB University (Bogor Agricultural University), Bogor 16680, IndonesiaDepartment of Forest Biomaterials and Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, KoreaDepartment of Forest Biomaterials and Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, KoreaChanges in the dimensions of lignocellulose nanofibrils (LCNFs) with different lignin contents from betung bamboo (<i>Dendrocalamus asper</i>) by enzymatic hydrolysis using endoglucanase (EG) were investigated. Lignin contents were adjusted from 3% to 27% by NaClO<sub>2</sub>/acetic acid treatment, and LCNFs were prepared using a wet disk-mill (WDM). The dimensions of the LCNFs significantly decreased with decreasing lignin content and increasing EG addition. With increasing EG content, the average diameter of the LCNFs significantly decreased, even though they contained parts of hemicellulose and lignin. The crystal structure showed the typical cellulose I structure in all samples, but the intensity of the diffraction peak slightly changed depending on the lignin and EG contents. The crystallinity index (CrI) values of the LCNFs increased a maximum of 23.8% (LCNF-L27) under increasing EG addition, regardless of the lignin content. With the EG addition of three times the LCNF amount, LCNF-L3 showed the highest CrI value (59.1%). By controlling the composition and structure of LCNFs, it is expected that the wide range of properties of these materials can extend the property range available for existing materials.https://www.mdpi.com/2073-4360/12/10/2201lignocellulose nanofibrilenzymatic hydrolysisendoglucanasepretreatment |
| spellingShingle | Jae-Hyuk Jang Noriko Hayashi Song-Yi Han Chan-Woo Park Fauzi Febrianto Seung-Hwan Lee Nam-Hun Kim Changes in the Dimensions of Lignocellulose Nanofibrils with Different Lignin Contents by Enzymatic Hydrolysis Polymers lignocellulose nanofibril enzymatic hydrolysis endoglucanase pretreatment |
| title | Changes in the Dimensions of Lignocellulose Nanofibrils with Different Lignin Contents by Enzymatic Hydrolysis |
| title_full | Changes in the Dimensions of Lignocellulose Nanofibrils with Different Lignin Contents by Enzymatic Hydrolysis |
| title_fullStr | Changes in the Dimensions of Lignocellulose Nanofibrils with Different Lignin Contents by Enzymatic Hydrolysis |
| title_full_unstemmed | Changes in the Dimensions of Lignocellulose Nanofibrils with Different Lignin Contents by Enzymatic Hydrolysis |
| title_short | Changes in the Dimensions of Lignocellulose Nanofibrils with Different Lignin Contents by Enzymatic Hydrolysis |
| title_sort | changes in the dimensions of lignocellulose nanofibrils with different lignin contents by enzymatic hydrolysis |
| topic | lignocellulose nanofibril enzymatic hydrolysis endoglucanase pretreatment |
| url | https://www.mdpi.com/2073-4360/12/10/2201 |
| work_keys_str_mv | AT jaehyukjang changesinthedimensionsoflignocellulosenanofibrilswithdifferentlignincontentsbyenzymatichydrolysis AT norikohayashi changesinthedimensionsoflignocellulosenanofibrilswithdifferentlignincontentsbyenzymatichydrolysis AT songyihan changesinthedimensionsoflignocellulosenanofibrilswithdifferentlignincontentsbyenzymatichydrolysis AT chanwoopark changesinthedimensionsoflignocellulosenanofibrilswithdifferentlignincontentsbyenzymatichydrolysis AT fauzifebrianto changesinthedimensionsoflignocellulosenanofibrilswithdifferentlignincontentsbyenzymatichydrolysis AT seunghwanlee changesinthedimensionsoflignocellulosenanofibrilswithdifferentlignincontentsbyenzymatichydrolysis AT namhunkim changesinthedimensionsoflignocellulosenanofibrilswithdifferentlignincontentsbyenzymatichydrolysis |