林产化学与工业2017，Vol.37Issue(3)：82-88,7.DOI:10.3969/j.issn.0253-2417.2017.03.011
酶水解对马尾松纤维细胞壁结构及微纤丝制备的影响
Effects of Enzymatic Hydrolysis on Cell Wall Structure of Masson Pine and Preparation of Microfibrillated Cellulose
摘要
Abstract
The microfibrillated cellulose (MFC) was prepared from cellulose hydrolyzed masson pine fibers by high-pressure homogenization.The properties of enzymatic hydrolyzed fibers were characterized by surface area and porosity analyzer,X-ray diffractometer and Fourier transform infrared spectrometer.The effect of enzymatic hydrolysis on the preparation of MFC was investigated based on the analysis of the degree of polymerization (Dp),morphology and diameter distribution of MFC.The results showed that the specific surface area,crystallinity and pore structure of fibers could be changed by enzymatic hydrolysis.As the fiber were homogenized 30 times under 100 MPa,the Dp and diameter distribution of MFC obtained from raw fibers were 354 and 20-50 nm respectively,while the Dp and diameter distribution of MFC obtained from enzymatic fibers which was hydrolyzed by 10 FPU/g cellulase at 50 ℃ for 2 h were 229 and 10-40 nm respectively.关键词
酶水解/孔隙分布/结晶度/比表面积/MFCKey words
enzyme pretreatment/pore distribution/crystallinity/specific surface area/microfibrillated cellulose分类
化学化工引用本文复制引用
朱晶航,李新平,王转,杜敏,陈立红..酶水解对马尾松纤维细胞壁结构及微纤丝制备的影响[J].林产化学与工业,2017,37(3):82-88,7.基金项目
国家自然科学基金资助项目(31370578) （31370578）
陕西省科技厅自然科学基础研究面上项目(2015JM3083) （2015JM3083）
陕西省科技厅省级重点实验室项目(2011 HBSZS014) （2011 HBSZS014）
