0 引言
1 材料与方法
1.1 实验材料与仪器
1.2 实验方法
2 结果与分析
2.1 预处理剂使用量对秸秆酶解糖化的影响
Fig. 1 The concentration of reducing sugar as a function of time under different pretreating dose图1 不同预处理剂加入量对玉米秸秆酶解效果与反应时间的关系 |
2.2 预处理时间对玉米秸秆水解糖化的影响
Fig. 2 Effect of pretreating time on the enzymolysis of corn straw at 24 h图2 不同预处理时间对玉米秸秆24 h酶解的影响 |
2.3 预处理温度对玉米秸秆水解糖化的影响
Fig. 3 Effect of pretreating temperature on the enzymolysis of corn straw at 24 h图3 不同预处理温度对玉米秸秆24 h酶解效果的影响 |
2.4 强碱性双氧水预处理玉米秸秆机理研究
Fig. 4 Effect of different pretreating agents on the enzymolysis of corn straw at 24 h图4 不同预处理剂对玉米秸秆24 h酶解效果的影响 |
Fig. 5 Lignocellulose content of straw pretreated by different pretreatment agents图 5 不同预处理剂预处理后秸秆木质纤维素含量 |
Fig. 6 Images of scanning electron microscope (SEM) of straw surface pretreated by different pretreatment agents: (a) untreated straw (Blank), (b) H2O, (c) H2O2, (d) NaOH, (e) alkaline hydrogen peroxide; (f) leaching liquor picture of straw pretreated by different pretreating agents图6 不同预处理剂处理后秸秆表面SEM图像:(a)未处理(Blank),(b)经H2O处理,(c)经H2O2处理,(d)经NaOH处理,(e)经碱性双氧水处理;(f)不同预处理秸秆浸出液 |
Fig. 7 GC-MS image of straw leach liquor: (a) H2O; (b) H2O2; (c) NaOH; (d) H2O2 + NaOH图7 秸秆浸出液GC-MS分析:(a)H2O处理;(b)H2O2处理;(c)NaOH处理;(d)H2O2+NaOH处理 |
Table 1 GC-MS analysis of straw leach liquor pretreated by alkaline hydrogen peroxide表1 碱性双氧水预处理秸秆浸出液GC-MS成分分析 |
Number | Molecular formula | Cas number | Strutural formula | Similarity |
---|---|---|---|---|
1 | C6H10O2 | 1072-21-5 | | 86 |
2 | C10H18O | 32730-40-8 | | 82 |
3 | C8H14O3 | 22241-34-5 | | 81 |
4 | C10H18O | 1728-46-7 | | 81 |
5 | C11H20O | 32362-97-3 | | 81 |
6 | C6H12O2 | 931-17-9 | | 83 |
7 | C10H18O | 31053-82-4 | | 81 |
8 | C6H10O2 | 1192-78-5 | | 81 |
9 | C7H14O | 7443-70-1 | | 80 |
10 | C6H10O2 | 533-60-8 | | 80 |
11 | C8H16O2 | 56805-30-2 | | 80 |
12 | C7H14O | 41065-97-8 | | 80 |
13 | C10H16N2O3 | 66398-55-8 | | 80 |