Analysis of Pinus radiata D. Don Bark by Near Infrared Spectroscopy
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L. R. Schimleck
Summary
The estimation of a range of Pinus radiata D. Don bark properties by calibrated near infrared (NIR) spectroscopy is reported. A series of P. radiata samples were characterised in terms of hot water extractives, NaOH extractives and Stiasny value. NIR spectra were obtained from the milled bark of each sample and used to develop calibrations for each parameter. Coefficients of determination (R2) ranged from 0.84 (NaOH extractives) to 0.94 (Stiasny value). Standard errors of calibration ranged from 0.96 (NaOH extractives) to 2.47 (Stiasny value). When applied to a separate test set, the hot water extractives and Stiasny value calibrations performed well, while the NaOH calibration was disappointing. The calibration developed for Stiasny value could be of considerable practical importance as the method used to determine Stiasny value is particularly time consuming.
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
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- The Need for Unequivocally Defined Reference Fungi-Genomic Variation in Two Strains Named as Coniophora puteana BAM Ebw. 15
- The Oriented Structure of Lignin and its Viscoelastic Properties Studied by Static and Dynamic FT-IR Spectroscopy
- Formation of β-O-4 Lignin Models -A Theoretical Study
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