Author/Authors :
Tianxue، نويسنده , , Yang and Li، نويسنده , , Yun and Haobo، نويسنده , , Hou and Beidou، نويسنده , , Xi and Liansheng، نويسنده , , He and Xiaowei، نويسنده , , Wang and Caihong، نويسنده , , Huang and Kun، نويسنده , , Wu and Ying، نويسنده , , Zhao and Bin-sheng، نويسنده , , Chen، نويسنده ,
Abstract :
Dynamic variation in the spatial structure of corn stover during alkali and biological co-pretreatment was investigated by X-ray diffraction. The result for crystallinity and microcrystalline size of cellulose showed periodic changes during the pretreatment process. The dominant destruction periods of crystalline areas were mainly located at 3–5 d and 7–17 d, and prevailing destroyed amorphous areas mainly occurred at 0–2 d and 5–7 d. On day 7, the relative crystallinity and microcrystalline size reached 52.81% and 8.56 nm, respectively, which were the maximum and minimum values during the whole co-pretreatment. The results indicated that spatial structure change was not uniform with pretreatment time, and this was contributed to explore the vital time point of destruction during the alkali–biological pretreatment.
Keywords :
Corn stover , X-ray diffraction , crystallinity , Microcrystalline size
