林产化学与工业2018，Vol.38Issue(1)：121-126,6.DOI:10.3969/j.issn.0253-2417.2018.01.018
漆酶预处理前后蔗渣半纤维素的提取及性质研究
Effect of Laccase Pretreatment on Extract of Bagasse Hemicellulose
摘要
Abstract
A novel laccase pretreatment was developed to enhanced hemicelluloses extraction from bagasse by microwave-assistedalkali extracting method. The morphology and porosity characterization of bagasse and relative molecular weight of hemicelluloses were characterized by scanning electron microscope, surface and aperture analyzer and gel permeation chromatograph. The results indicated that the surface structure of bagasse was fractured and a number of holes were discovered after laccase pretreatment,and the total pore volume and surface area were increased by 26.7% and 90.5%, respectively. The maximum yield of hemicelluloses(approximately 89.0%) and higher molecular weights were obtained under the conditions of the dosage of laccase 160 U/g,sodium hydroxide concentration 8%, microwave power 800 W and extraction time 50 min, ratio of solid and liquid 1:20,extraction temperature 90℃.关键词
半纤维素/漆酶/微波/蔗渣/预处理Key words
hemicellulose/laccase/microwave/bagasse/pretreatment分类
化学化工引用本文复制引用
李娇阳,黄吉振,刘玉新,孙兵,梁星,张宝..漆酶预处理前后蔗渣半纤维素的提取及性质研究[J].林产化学与工业,2018,38(1):121-126,6.基金项目
国家自然科学基金项目资助(31460176,1466017) （31460176,1466017）
广西清洁化制浆造纸与污染控制重点基金资助(F201602) （F201602）
