### Extraction of Lignin from Lignocellulosic Biomass Residue with Atmospheric Acetic Acid Pulping and Estimation of Chemical Nature of the Lignin

K. Ito, Y. Yagisawa, A. Ito, T. Takahashi & J. Kobayashi
One of the important issues in bio-ethanol production from lignocellulosic biomass is the effective usage of sacchararification residue. The sacchararification residue includes lignin, which is contained a variety of functional groups. It is possible to apply the lignin as raw martial for chemical agents and plastics, thus there is a need for an effective extraction technique of lignin from the sacchararification residue. In this study, enzymatic sacchararification residue was applied to the extraction technique that...