Rapid Prediction of Solid Wood Lignin Content Using Transmittance Near-Infrared Spectroscopy

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• 作者：Ting-Feng Yeh ; Hou-min Chang ; and John F. Kadla
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2004
• 出版时间：March 24, 2004
• 年：2004
• 卷：52
• 期：6
• 页码：1435 - 1439
• 全文大小：85K
• 年卷期：v.52,no.6(March 24, 2004)
• ISSN：1520-5118

文摘

A rapid transmittance near-infrared (NIR) spectroscopic method has been developed to characterizethe lignin content of solid wood. Using simple, multiple regression, and partial least-squares statisticalanalysis the lignin contents of wood wafers, taken from increment cores, and synthetic wood, preparedby blending milled wood lignin and holocellulose, were compared and quantified. Strong correlationswere obtained between the predicted NIR results and those obtained from traditional chemicalmethods. In addition to the experimental protocol and method development, NIR results from woodsamples with different particle sizes and various lignin contents are discussed.Keywords: Loblolly pine (Pinus taeda); transmittance near-infrared spectroscopy (NIR); incrementcores; wood wafer; lignin content; prediction