Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood
Molecular weight (MW) and related conformational data of three commercially available technical lignins (Alcell L, kraft L, and soda L) have been studied by means of analytical ultracentrifugation, taking advantage of some recent developments in both sedimentation velocity and sedimentation equilibr...
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| Format: | Article |
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De Gruyter
2016
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| Online Access: | https://eprints.nottingham.ac.uk/41702/ |
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| author | Alzahrani, Qushmua E. Adams, Gary G. Gillis, Richard B. Besong, Tabot M.D. Kök, M. Samil Fong, Emily Harding, Richard A. van Dam, Jan E.G. Gosselink, Richard J.A. Rowe, Arthur J. Harding, Stephen E. |
| author_facet | Alzahrani, Qushmua E. Adams, Gary G. Gillis, Richard B. Besong, Tabot M.D. Kök, M. Samil Fong, Emily Harding, Richard A. van Dam, Jan E.G. Gosselink, Richard J.A. Rowe, Arthur J. Harding, Stephen E. |
| author_sort | Alzahrani, Qushmua E. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Molecular weight (MW) and related conformational data of three commercially available technical lignins (Alcell L, kraft L, and soda L) have been studied by means of analytical ultracentrifugation, taking advantage of some recent developments in both sedimentation velocity and sedimentation equilibrium determinations. The lignins were dissolved in dimethyl sulphoxide (with ca. 90% solubility), and solutions were studied with regards to their oligomeric state, heterogeneity profiles (distribution of sedimentation coefficients), and molecular weight distributions (MWD). Alcell L and soda L have similar properties showing one major low MW component and two minor high MW components, whereas kraft L appears to be larger and more uniform, i.e., it shows a more monodisperse MWD. Weight average molecular weight (Mw) data from sedimentation equilibrium obtained by the new SEDFIT-MSTAR procedure in conjunction with MULTISIG analysis were found to be ~18 kDa (Alcell L), 25 kDa (kraft L), and 15 kDa (soda L). Further analysis of the data by means of the routines MULTISIG and M_INVEQ confirmed the presence of additional components in Alcell L and soda L, and the larger size and high degree of monodispersity of kraft L. The intrinsic viscosity data of the three lignins were found to be very similar in the range of 22–24 ml g-1, and all data were consistent with an elongated plate shape molecular structure with an equivalent discoid aspect ratio ~30. |
| first_indexed | 2025-11-14T19:46:21Z |
| format | Article |
| id | nottingham-41702 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:46:21Z |
| publishDate | 2016 |
| publisher | De Gruyter |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-417022020-05-04T17:28:29Z https://eprints.nottingham.ac.uk/41702/ Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood Alzahrani, Qushmua E. Adams, Gary G. Gillis, Richard B. Besong, Tabot M.D. Kök, M. Samil Fong, Emily Harding, Richard A. van Dam, Jan E.G. Gosselink, Richard J.A. Rowe, Arthur J. Harding, Stephen E. Molecular weight (MW) and related conformational data of three commercially available technical lignins (Alcell L, kraft L, and soda L) have been studied by means of analytical ultracentrifugation, taking advantage of some recent developments in both sedimentation velocity and sedimentation equilibrium determinations. The lignins were dissolved in dimethyl sulphoxide (with ca. 90% solubility), and solutions were studied with regards to their oligomeric state, heterogeneity profiles (distribution of sedimentation coefficients), and molecular weight distributions (MWD). Alcell L and soda L have similar properties showing one major low MW component and two minor high MW components, whereas kraft L appears to be larger and more uniform, i.e., it shows a more monodisperse MWD. Weight average molecular weight (Mw) data from sedimentation equilibrium obtained by the new SEDFIT-MSTAR procedure in conjunction with MULTISIG analysis were found to be ~18 kDa (Alcell L), 25 kDa (kraft L), and 15 kDa (soda L). Further analysis of the data by means of the routines MULTISIG and M_INVEQ confirmed the presence of additional components in Alcell L and soda L, and the larger size and high degree of monodispersity of kraft L. The intrinsic viscosity data of the three lignins were found to be very similar in the range of 22–24 ml g-1, and all data were consistent with an elongated plate shape molecular structure with an equivalent discoid aspect ratio ~30. De Gruyter 2016-02-01 Article PeerReviewed Alzahrani, Qushmua E., Adams, Gary G., Gillis, Richard B., Besong, Tabot M.D., Kök, M. Samil, Fong, Emily, Harding, Richard A., van Dam, Jan E.G., Gosselink, Richard J.A., Rowe, Arthur J. and Harding, Stephen E. (2016) Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood. Holzforschung, 70 (2). ISSN 0018-3830 Alcell L; analytical ultracentrifugation; disc shape; DMSO; kraft L; soda L; viscometry https://www.degruyter.com/view/j/hfsg.2016.70.issue-2/hf-2014-0318/hf-2014-0318.xml doi:10.1515/hf-2014-0318 doi:10.1515/hf-2014-0318 |
| spellingShingle | Alcell L; analytical ultracentrifugation; disc shape; DMSO; kraft L; soda L; viscometry Alzahrani, Qushmua E. Adams, Gary G. Gillis, Richard B. Besong, Tabot M.D. Kök, M. Samil Fong, Emily Harding, Richard A. van Dam, Jan E.G. Gosselink, Richard J.A. Rowe, Arthur J. Harding, Stephen E. Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood |
| title | Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood |
| title_full | Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood |
| title_fullStr | Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood |
| title_full_unstemmed | Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood |
| title_short | Matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood |
| title_sort | matrix-free hydrodynamic study on the size distribution and conformation of three technical lignins from wood and non-wood |
| topic | Alcell L; analytical ultracentrifugation; disc shape; DMSO; kraft L; soda L; viscometry |
| url | https://eprints.nottingham.ac.uk/41702/ https://eprints.nottingham.ac.uk/41702/ https://eprints.nottingham.ac.uk/41702/ |