酶解秸秆残渣中木质素提取方法的研究  

Extraction methods of lignin from fermentation residue

作　　者：张通 白富栋[1] 李政[1] 薛冬[1] 王领民[1] 乔凯[1] ZHANG Tong;BAIFudong;LI Zheng;XUE Dong;WANG Lingmin;QIAO Kai(Fushun Research Institute of Petroleum and Petrochemicals,SINOPEC,Fushun 113001,China)

机构地区：[1]中国石油化工股份有限公司抚顺石油化工研究院,辽宁抚顺113001

出　　处：《化学研究与应用》2018年第6期901-906,共6页Chemical Research and Application

基　　金：中国石油化工股份有限公司科技项目(SH1402;SH1601)资助

摘　　要：为了综合利用酶解秸秆残渣,分别采用碱溶酸析法、高沸点醇提取法、甲酸乙酸法及碱性乙醇法从残渣中提取木质素,并对得到的木质素产品进行了傅里叶红外光谱分析、凝胶色谱分析、^(13)C NMR及~1H NMR分析等表征。实验结果表明:四种提取方法得到的木质素产品的结构相差不大;采用碱性乙醇法提取木质素收率最高(提取率93.5%,纯度94.1%),且操作简便、经济性高、适合工业化应用。To utilize the fermentation residue of corn straw,the lignin component of fermentation residue was extracted by using acidification extraction,high boiling point alcohols extraction,formic acid-acetic acid-water extraction and alkaline-ethanol extraction methods,respectively.The obtained lignin products were characterized by fourier transform infrared spectroscopy（ FTIR）,gel permeation chromatography（ GPC）,carbon-13 nuclear magnetic resonance（^（13）C NMR） and proton nuclear magnetic resonance（^1H NMR）spectroscopy,etc.. Results showed that lignin products of different methods presented similar structures,and alkaline-ethanol extraction method exhibited several advantages over the others in terms of operability,lignin yield and economic efficiency which had a better prospect for industrialization.

关 键 词：酶解残渣 木质素 提取方法 表征 

分 类 号：O658[理学—分析化学]