乙酸法制浆副产物半纤维素降解糖的初步研究

A primary investigation on by-product degraded hemicellulose separated by acetosolv pulping

乙酸法制浆是分离木质纤维素原料的主要组分-木素、纤维素、半纤维素,以便于其进一步利用的简单、可行的方法。本文主要研究了乙酸法分离得到的半纤维素降解糖的特点,利用较新型的离子色谱法分析了半纤维素降解糖中的单糖组成和含量;利用超滤系统进行了半纤维素降解糖的初步分级及相对质量百分含量测定,分析了其分子量分布情况;利用红外光谱对半纤维素降解糖结构进行了一定的分析。

Acetosolv pulping is a simple and easy means to fractionate the main components (lignin, cellulose and hemicellulose) of lignocellulose materials and these fractionations can be further utilized. The paper mainly investigated the characteristics of degradative hemicellulose fractionated by acetosolv pulping. Monosaccharide components and content in hemicellulose fractionation were analyzed by a new analysis meansion chromatography. degradative hemicellulose was separated into different molecular weight sect...