Research Center of Biomass Clean Utilization Engineering Research Center of Forestry Biomass Materials and Bioenergy College of Materials Science and Technology Beijing Forestry University Beijing 100083 China;
Key Laboratory of Pulp and Paper Science&Technology of Ministry of Education/Shandong Province Qilu University of Technology(Shandong Academy of Sciences) Ji''nan Shandong Province 250353 China;
hemicellulose; extraction; purification; modification; application;