Department of Life System, Institute of Technology and Science, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan.
Department of Life System, Institute of Technology and Science, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan.
Bioresour Technol. 2015 Apr;182:245-250. doi: 10.1016/j.biortech.2015.02.005. Epub 2015 Feb 11.
This study investigated the effect of high-temperature saturated steam treatments on the chemical characteristics and enzymatic saccharification of softwood and hardwood. The weight loss and chemical modification of cedar and beech wood pieces treated at 25, 35, and 45 atm for 5 min were determined. Fourier transform infrared and X-ray diffraction analyses indicated that solubilization and removal of hemicellulose and lignin occurred by the steam treatment. The milling treatment of steam-treated wood enhanced its enzymatic saccharification. Maximum enzymatic saccharification (i.e., 94% saccharification rate of cellulose) was obtained using steam-treated beech at 35 atm for 5 min followed by milling treatment for 1 min. However, the necessity of the milling treatment for efficient enzymatic saccharification is dependent on the wood species.
本研究探讨了高温饱和蒸汽处理对软木和硬木化学特性和酶解糖化的影响。测定了在 25、35 和 45 大气压下处理 5 分钟的雪松和山毛榉木块的失重和化学修饰。傅里叶变换红外和 X 射线衍射分析表明，蒸汽处理导致半纤维素和木质素的溶解和去除。蒸汽处理木材的磨浆处理提高了其酶解糖化能力。使用在 35 大气压下处理 5 分钟然后进行 1 分钟磨浆处理的蒸汽处理山毛榉木，可获得最大的酶解糖化（即纤维素的 94%糖化率）。然而，对于高效酶解糖化，磨浆处理的必要性取决于木材种类。
