文献类型：期刊文献

英文题名：Preparation and characterization of cellulose nanofibers from de-pectinated sugar beet pulp

作者：Li, Meng[1];Wang, Li-jun[2];Li, Dong[1];Cheng, Yan-Ling[3];Adhikari, Benu[4]

第一作者：Li, Meng

通讯作者：Li, D[1]

机构：[1]China Agr Univ, Coll Engn, Natl Energy R&D Ctr Nonfood Biomass, Beijing 100083, Peoples R China;[2]China Agr Univ, Beijing Key Lab Funct Food Plant Resources, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China;[3]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[4]RMIT Univ, Sch Appl Sci, Melbourne, Vic 3001, Australia

第一机构：China Agr Univ, Coll Engn, Natl Energy R&D Ctr Nonfood Biomass, Beijing 100083, Peoples R China

通讯机构：[1]corresponding author), China Agr Univ, Coll Engn, Natl Energy R&D Ctr Nonfood Biomass, POB 50,17 Qinghua Donglu, Beijing 100083, Peoples R China.

年份：2014

卷号：102

期号：1

起止页码：136-143

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20135217129198);Scopus(收录号：2-s2.0-84890455129);WOS:【SCI-EXPANDED(收录号:WOS:000331779600018)】；

基金：This research was supported by Beijing Municipal Science and Technology Commission Project (Z121100001312010 and D12110003112002), National Natural Science Foundation of China (31000813), High Technology Research and Development Program of China (2011AA100802), Science and Technology Support Project of China (2013BAD10B03), Commonweal Guild Agricultural Scientific Research Program of China (201003077), and Chinese Universities Scientific Fund (2012YJ092, 2012QJ009, and 2013YJ007).

语种：英文

外文关键词：Cellulose nanofibers; Sugar beet; High pressure homogenization; Morphology; Thermal degradation

摘要：Cellulose nanofibers (diameter =10-70 nm) were produced using chemical treatments (alkali treatment and bleaching) and high pressure homogenization from de-pectinated sugar beet pulp (DSBP). Chemical analysis and Fourier transform infrared spectroscopy (FTIR) indicated that the chemical treatments greatly removed the hemicellulose and lignin from the DSBP and significantly increased the cellulose content. The crystallinity of the cellulose nanofibers increased from 35.67% to 69.62% after alkali treatment and bleaching. The thermal degradation temperature of DSBP cellulose nanofibers was 271.7 degrees C which was found to be 47.3 degrees C higher than that of the untreated DSBP. The DSBP cellulose nanofibers can be preferably used as reinforcement in the biocomposite material at high temperature. (C) 2013 Elsevier Ltd. All rights reserved.