热带作物学报2018，Vol.39Issue(1)：156-161,6.DOI:10.3969/j.issn.1000-2561.2018.01.024
新鲜椰衣纤维表面半纤维素含量的测定及去除
Determination and Removal of Hemicellulose Content on the Surface of Coir Fiber
摘要
Abstract
Fresh coconut fiber has a certain amount of loose coconut bran on its surface.The main components of coco coir are hemicellulose and pentosan,not conducive to modifying coir fiber,must be removed.Dilute sulphuric acid was used to remove the hemicellulose bran on the surface of fresh coconut fiber,and the content of hemicellulose was determined by spectrophotometry.The effect of hemicellulose removal on coir fiber was investigated.The results showed the highest removal of hemicellulose could be achieved when hydrolyzed for 2 h in 1.3 mol/L sulfuric acid with a solid-liquid ratio 1∶5 under 102℃.Under the above conditions the hemicellulose adhesion to the surface of semi fresh coconut fiber was 14.58％.Reproducibility test and standard recovery test confirmed the method was effective.The change of the surface of coconut fiber was observed under infrared scanning electron microscope.关键词
椰衣纤维/硫酸加热水解/分光光度法/半纤维素Key words
fresh coconut crude fiber/atmospheric sulfuric acid hydrolysis method/spectrophotometry/hemicellulose分类
化学化工引用本文复制引用
王政,黄广民,赵斌,李山丹,胡旦..新鲜椰衣纤维表面半纤维素含量的测定及去除[J].热带作物学报,2018,39(1):156-161,6.基金项目
海南省自然科学基金项目(No.20153161) （No.20153161）
海南省研究生创新科研课题(No.Hys2016-46). （No.Hys2016-46）
