| abstract |
The present invention relates to a method for analyzing the content of lignin and extracts in coniferous wood, the powder sample manufacturing step of powdering the coniferous wood; Obtaining a near infrared spectrum of the powder sample; And multiple regression analysis (MLR) and partial least squares methods for the near-infrared spectrum measured in advance on a sample of a predetermined size and the measured content of lignin and extract, respectively, based on the wet analysis of the sample. (PLS), modified partial least squares (MPLS), principal component regression analysis (PCR), and neural network analysis (NNA), one or more regression methods selected from the group consisting of Provided is a method for analyzing the content of lignin and extract in coniferous wood, including a calibration step. |