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Determination of the syringyl/guaiacyl ratio of Eucalyptus globulus wood lignin by near infrared-based partial least squares regression models using analytical pyrolysis as the reference method

Citation

Alves, A and Simoes, R and Stackpole, DJ and Vaillancourt, RE and Potts, BM and Schwanninger, M and Rodrigues, J, Determination of the syringyl/guaiacyl ratio of Eucalyptus globulus wood lignin by near infrared-based partial least squares regression models using analytical pyrolysis as the reference method, Journal of Near Infrared Spectroscopy, 19, (5) pp. 343-348. ISSN 0967-0335 (2011) [Refereed Article]


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Copyright Statement

Copyright 2011 IM Publications

DOI: doi:10.1255/jnirs.946

Abstract

High syringly/guaiacyl (S/G) ratios are advantageous for chemical pulp production due to higher delignification rates, higher pulp yields and lower chemical consumption. Near infrared-based partial least-squares regression (PLS-R) models were developed to assess the S/G ratio of Eucalyptus globulus wood using analytical pyrolysis as the reference method. The PLS-R models obtained using the wavenumber range from 6100 cm -1 to 5450 cm -1 (1639-1835 nm) of the preprocessed spectra using first derivative (1stDer) and first derivative in combination with; vector normalisation (1stDerVN), multiplicative scatter correction (1stDerMSC) and straight-line-subtraction (1stDerSLS), and the second derivative (2ndDer), are well qualified for rapid screening the S/G ratio of Eucalyptus globulus wood. Overall, models using 1stDerVN and 1stDerMSC preprocess (78 samples) requiring only three PLS components have the best statistics with coefficient of determination (r 2) = 0.97, root mean square error of cross-validation (RMSECV) = 0.025 and residual prediction deviation (RPD) = 5.7 © IM Publications LLP 2011.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Forestry Sciences
Research Field:Forestry Product Quality Assessment
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Hardwood Plantations
Author:Stackpole, DJ (Mr Desmond Stackpole)
Author:Vaillancourt, RE (Professor Rene Vaillancourt)
Author:Potts, BM (Professor Brad Potts)
ID Code:75893
Year Published:2011
Web of Science® Times Cited:12
Deposited By:Plant Science
Deposited On:2012-02-20
Last Modified:2012-08-21
Downloads:4 View Download Statistics

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