Cationic Surfactant-assisted Microwave-NaOH Pretreatment for Enhancing Enzymatic Hydrolysis and Fermentable Sugar Yield from Peanut Shells
Cationic Surfactant-assisted Microwave-NaOH Pretreatment for Enhancing Enzymatic Hydrolysis and Fermentable Sugar Yield from Peanut Shells
复制标题
阳离子表面活性剂辅助微波-NaOH预处理提高花生壳酶解和发酵糖产率
DOI：
10.15376/biores.9.1.1290-1302
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发表时间：
2014-01
期刊：
影响因子：
1.5
通讯作者：
Zhen Guo
中科院分区：
文献类型：
--
作者：
Kun-lun Liu;Fu-sheng Chen;Li-fen Zhang;Zhen Guo
由于原料的不同，从木质纤维生物质生产生物乙醇是困难的。需要一种有效的前处理方法，既能降低总的工艺经济性，又能提高总的工艺效率。在阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)存在下，用微波-NaOH对花生壳进行前处理，再用酶解，可显著提高前处理效率。采用傅立叶变换红外光谱(FTIR)、X射线衍射仪(X射线衍射仪)、扫描电子显微镜(SEM)等测试手段，检测了前处理前后的结构变化。傅立叶变换红外光谱和扫描电子显微镜显示了处理前后样品的差异。X射线衍射图表明，经处理的材料的结晶度高于未处理的材料。这些变化也验证了CTAB在花生壳前处理中的作用。
Production of bioethanol from lignocellulosic biomass is difficult due to differences in the feedstock. There is a need for an efficient pretreatment method that not only reduces the total process economy but also increases the total process efficiency. Following microwave-NaOH pretreatment of peanut shells in the presence of the cationic ionic surfactant cetyltrimethylammonium bromide (CTAB) and enzymatic hydrolysis, the pretreatment efficiency was significantly enhanced. The structural changes before and after pretreatment were detected by Fourier transform infrared (FTIR) analysis, X-ray diffraction (XRD), and scanning electron microscopy (SEM). FTIR and SEM showed the differences between the untreated and pretreated samples. The XRD profile showed that the degree of crystallinity was higher for pretreated materials than for untreated ones. These changes also verified the effect of CTAB during pretreatment of peanut shells.
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