Predicting the chemical composition of juvenile and mature woods in Scots pine (Pinus sylvestris L.) using FTIR spectroscopy

被引:24
|
作者
Funda, Tomas [1 ,2 ,3 ]
Fundova, Irena [1 ,4 ]
Gorzsas, Andras [5 ]
Fries, Anders [1 ]
Wu, Harry X. [1 ,6 ,7 ]
机构
[1] Swedish Univ Agr Sci, Umea Plant Sci Ctr, Dept Forest Genet & Plant Physiol, Umea, Sweden
[2] Czech Univ Life Sci Prague, Dept Genet & Breeding, Fac Agrobiol & Nat Resources, Prague, Czech Republic
[3] Nanjing Forestry Univ, Key Lab Forest Genet & Biotechnol, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing, Peoples R China
[4] Skogforsk Forestry Res Inst Sweden, Savar, Sweden
[5] Umea Univ, Dept Chem, Umea, Sweden
[6] Beijing Forestry Univ, Beijing Adv Innovat Ctr Tree Breeding Mol Design, Beijing, Peoples R China
[7] CSIRO, Natl Res Collect Australia, Canberra, ACT, Australia
基金
瑞典研究理事会;
关键词
NEAR-INFRARED SPECTROSCOPY; MECHANICAL-PROPERTIES; CELL-WALL; EXTRACTIVES; IR; HARDWOOD; RADIATA; BIOMASS; GROWTH; ENERGY;
D O I
10.1007/s00226-020-01159-4
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
The chemical composition of wood is one of the key features that determine wood quality. The focus of this study was on identifying differences between juvenile and mature woods in Scots pine (Pinus sylvestris L.) and developing models for predicting the chemical composition of these two wood types. Chemical traits, determined by traditional wet chemistry techniques, included the proportion of lignin, polysaccharides and extractives. Partial least squares regression of Fourier transform infrared (FTIR) spectra was used for model building. The model performance was primarily evaluated by root mean squared error of predictions (RMSEP). High predictive power was attained for the content of lignin (RMSEP of 0.476 and 0.495 for juvenile and mature woods, respectively) and extractives (0.302 and 0.471), good predictive power for cellulose (0.715 and 0.696) and hemicelluloses in juvenile wood (0.719) and low predictive power for hemicelluloses in mature wood (0.823). A distinct band was observed at 1693 cm(-1), and its intensity was strongly associated with the content of extractives (r = 0.968 and 0.861 in juvenile and mature woods, respectively). FTIR has proved suitable for the rapid, non-destructive, cost-efficient assessment of the chemical composition of juvenile and mature woods in Scots pine. The band at 1693 cm(-1) is to be further investigated to unravel its link with individual extractive components.
引用
收藏
页码:289 / 311
页数:23
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