杨木APMP废液中半纤维素的羧甲基化改性及其生物活性研究  

Study on Hemicellulose Carboxymethylation and Biological Activity in Poplar APMP Waste Liquor

作　　者：刘海棠[1,2,3] 李洁 LIU Haitang;LI Jie(China Light Industry Key Laboratory of Papermaking and Biorefinery,Tianjin Key Laboratory of Pulp and Paper,College of Light Industry Science and Engineering,Tianjin University of Science&Technology,Tianjin 300457,China;Key Laboratory of Biomass Energy and Material,Jiangsu Province,Nanjing 210042,China;Key Laboratory of Marine Resources and Chemistry of Tianjin(Tianjin University of Science&Technology),Tianjin 300457,China)

机构地区：[1]中国轻工业造纸与生物质精炼重点实验室,天津市制浆造纸重点实验室,天津科技大学轻工科学与工程学院,天津300457 [2]江苏省生物质能源与材料重点实验室,南京210042 [3]天津市海洋资源与化学重点实验室,天津科技大学,天津300457

出　　处：《天津造纸》2021年第2期30-34,共5页Tianjin Paper Making

摘　　要：研究了通过酸除木素后醇沉的方法从杨木APMP废液中提取半纤维素,对提取的半纤维素进行羧甲基化改性,并对改性后的半纤维素和未改性的半纤维素进行表征和生物活性的探究。结果表明:木聚糖为废液中提取的半纤维素的主要成分,杨木羧甲基半纤维素的抗氧化性、吸湿性和保湿性均优于未改性半纤维素。Hemicellulose was extracted from poplar APMP waste liquid by acid removaling of lignin,and the hemicellulose extracted from APMP waste liquid was carboxymethylated and modified.Hemicellulose and unmodified hemicellulose were characterized and investigated for biological activity.The results showed that xylan is the main component of hemicellulose extracted from the waste liquid.The antioxidant activity,hygroscopicity and moisture retention performance of poplar wood carboxymethyl hemicellulose were better than unmodified hemicellulose.

关 键 词：杨木APMP废液 半纤维素 羧甲基化 生物活性 

分 类 号：X703[环境科学与工程—环境工程] TQ352.79[化学工程]