title: [The research progress in determining lignocellulosic content by near infrared reflectance spectroscopy technology].
abstract: Near infrared reflectance spectroscopy technology, as a new analytic method, can be used to determine the content of lignin, cellulose and hemi-cellulose which is faster, effective, easier to operate, and more accurate than the traditional wet chemical methods. Nowadays it has been widely used in measuring the composition of lignocelluloses in woody plant and herbaceous plant. The domestic and foreign research progress in determining the lignin, cellulose and hemi-cellulose content in woody plant ( wood and bamboo used as papermaking raw materials and wood served as potential biomass energy) and herbaceous plant (forage grass and energy grass) by near infrared reflectance spectroscopy technology is comprehensively summarized and the advances in method studies of measuring the composition of lignocelluloses by near infrared reflectance spectroscopy technology are summed up in three aspects, sample preparation, spectral data pretreatment and wavelength selection methods, and chemometric analysis respectively. Four outlooks are proposed combining the development statues of wood, forage grass and energy grass industry. First of all, the authors need to establish more feasible and applicable models for a variety of uses which can be used for more species from different areas, periods and anatomical parts. Secondly, comprehensive near infrared reflectance spectroscopy data base of grass products quality index needs to be improved to realize on-line quality and process control in grassproducts industry, which can guarantee the quality of the grass product. Thirdly, the near infrared reflectance spectroscopy quality index model of energy plant need to be built which can not only contribute to breed screening, but also improve the development of biomass industry. Besides, modeling approaches are required to be explored and perfected any further. Finally, the authors need to try our best to boost the advancement in the determination method of lignin, cellulose and hemi-cellulose by near infrared reflectance spectroscopy from the laboratory to the practical applications. Along with the method of determining the lignin, cellulose and hemi-cellulose by near infrared spectroscopy being unceasingly perfected and matured, this technique will actively have a positive effect on the development of papermaking, forage grass and energy grass industry.
authors.affiliation: Beijing Key Laboratory for Grassland Science/college of Technology/national Energy R & D Center for Non-food Biomass, China dujuan890926@163.com
authors.forename: Juan
authors.initials: J
authors.lastname: Du
authors.affiliation: College of Information and Electrical Engineering, China Agricultural University, Beijing, China.
authors.forename: Dong
authors.initials: D
authors.lastname: An
authors.affiliation: Beijing Key Laboratory for Grassland Science/college of Technology/national Energy R & D Center for Non-food Biomass, China
authors.forename: Tian
authors.initials: T
authors.lastname: Xia
authors.affiliation: Beijing Key Laboratory for Grassland Science/college of Technology/national Energy R & D Center for Non-food Biomass, China
authors.forename: Yan-Hua
authors.initials: YH
authors.lastname: Huang
authors.affiliation: Beijing Key Laboratory for Grassland Science/college of Technology/national Energy R & D Center for Non-food Biomass, China
authors.forename: Hong-Chao
authors.initials: HC
authors.lastname: Li
authors.affiliation: Beijing Key Laboratory for Grassland Science/college of Technology/national Energy R & D Center for Non-food Biomass, China
authors.forename: Yun-Wei
authors.initials: YW
authors.lastname: Zhang
mesh_terms: D018533:Biomass; D002482:Cellulose / Q000032:analysis*; D008031:Lignin / Q000032:analysis*; D006109:Poaceae; D011134:Polysaccharides / Q000032:analysis*; D019265:Spectroscopy, Near-Infrared; D014934:Wood
chemical_list: D011134:Polysaccharides; C036909:lignocellulose; C007916:hemicellulose; D002482:Cellulose; D008031:Lignin