摘要
Rapid determination of the properties of lignocellulosic material is highly desirable for biomass produc- tion and utilization. In the present study, measurements of woody biomass digestibility and chemical composition using near-infrared reflectance （NIR） spectroscopy were calibrated. Poplar and eucalyptus materials were recorded in NIR spectrum as well as determined for their chemical compositions of Klason lignin, a-cellulose, holocellulose, lignin syringyl/guaiacyl （S/G） ratio and enzymatic digestibility. Fitting of the NIR information with chemical properties and digestibility by partial least-squares （PLS） regression generated a group of trained NIR models that were able to be used for rapid biomass measurement. Applying the models for woody biomass measurements led to a reliable evaluation of the chemical composition and digestibility, suggesting the feasibility of using NIR spectroscopy in the rapid characterization of biomass properties.
Rapid determination of the properties of lignocellulosic material is highly desirable for biomass produc- tion and utilization. In the present study, measurements of woody biomass digestibility and chemical composition using near-infrared reflectance （NIR） spectroscopy were calibrated. Poplar and eucalyptus materials were recorded in NIR spectrum as well as determined for their chemical compositions of Klason lignin, a-cellulose, holocellulose, lignin syringyl/guaiacyl （S/G） ratio and enzymatic digestibility. Fitting of the NIR information with chemical properties and digestibility by partial least-squares （PLS） regression generated a group of trained NIR models that were able to be used for rapid biomass measurement. Applying the models for woody biomass measurements led to a reliable evaluation of the chemical composition and digestibility, suggesting the feasibility of using NIR spectroscopy in the rapid characterization of biomass properties.
基金
supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (KSCX2-YW-G-033 and KSCX2-YW-N-070)
the Hi-Tech Research and Development (863) Program of the Ministry of Science and Technology of China (2009AA10Z101) to L.L.
