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Figure 2 | Plant Methods

Figure 2

From: FTIR-ATR-based prediction and modelling of lignin and energy contents reveals independent intra-specific variation of these traits in bioenergy poplars

Figure 2

FTIR-ATR spectra of wood samples with low (L), medium (M) and high (H) lignin contents in the finger-print region. Each spectrum is the mean of three replicate samples. ATR-FTIR spectra were converted to transmission spectra by automatic correction for the wavenumber-dependent influence on the penetration depth on the radiation, then base-line corrected (Rubberband method) and pre-processed with the method of vector normalization. The lignin contents determined with the acetyl bromide method of the wood samples were L: 23.4%, M: 27.5% and H: 31.5%, respectively.

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Plant Methods

ISSN: 1746-4811