可再生能源2014，Vol.32Issue(6)：876-880,5.
稀碱法预处理对橡子壳酶水解效果的影响
Effect of thin alkali pretreatment on enzymatic hydrolysis of oak shell
摘要
Abstract
The effect of alkali pretreatment on the composition and enzymatic hydrolysis rate of Sawtooth Oak (Quercus acutissima) shells were investigated for the first time.And the characteristic of fiber structure were studied with scanning electron microscopy(SEM),infrared spectrum (IR) and X-ray diffraction analysis (XRD).The result showed that after the pretreatment at room temperature with 2％ NaOH,the removal rate of the hemicellulose and lignin was 29.9％ and 15.6 ％,respectively.The cellulose content reached 47.0％ that increasing 36.2％ than before.The yield of enzymatic hydrolysis and total glucose reached 76.0％ and 73.5％ that increasing 77.6 ％ and 71.7％ than the untreated oak shell,respectively.The loss rate of cellulose was higher at 121℃ (0.15 MPa) for 1 h and total glucose yield was lower The surface area of oak shell fiber and pore volume increased and the crystallinity of cellulose decreased,which were favorable to increase the enzymatic hydrolysis rate.The experiment provided evidence for further research on oak shells enzymolysis.关键词
橡子壳/碱法/预处理/酶水解Key words
oak shell/ alkali/ pretreatment / enzymatic hydrolysis分类
能源科技引用本文复制引用
杨静,蒋剑春,张宁,卫民,赵剑..稀碱法预处理对橡子壳酶水解效果的影响[J].可再生能源,2014,32(6):876-880,5.基金项目
江苏省自然科学基金项目(BK2012515). （BK2012515）
