文献类型：期刊文献

中文题名：酶法制备甘蔗渣微晶纤维素及其性能研究

英文题名：Study on Enzymatic Preparation and Properties of Bagasse Microcrystalline Cellulose

作者：李小红 张杨 韦玉渠 刘天培 周朝亮 吴德智

第一作者：李小红

机构：[1]贵州理工学院食品药品制造工程学院

第一机构：贵州理工学院食品药品制造工程学院

年份：2018

卷号：18

期号：3

起止页码：78-83

中文期刊名：保鲜与加工

外文期刊名：Storage and Process

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：贵州省科技计划项目(黔科合LH字[2016]7094)

语种：中文

中文关键词：天然纤维素;微晶纤维素;Box-Behnken响应面法;甘蔗渣;性能

外文关键词：natural cellulose;microcrystalline cellulose;Box-Behnken response surface methodology;bagasse;properties

摘要：以甘蔗渣提取的天然纤维素为原料,酶法制备微晶纤维素,考察了pH、加酶量、水解温度对微晶纤维素得率的影响。通过单因素和响应面试验确定优化工艺条件,并对制备的甘蔗渣微晶纤维素的理化性质进行分析。结果表明,酶法制备甘蔗渣微晶纤维的最佳工艺条件为:pH 4.5,加酶量0.4%,水解温度45℃,在该工艺条件下制得的微晶纤维素的得率为94.9%,其持水力和膨胀力分别为(7.48±0.28)g·g-1、(5.61±0.17)m L·g-1。与市场上标准的微晶纤维素相比,该产品粒度更小;但与化学方法制备的甘蔗渣微晶纤维素相比,两者粒度基本相近。
Microcrystalline cellulose was prepared from natural cellulose extracted from bagasse by enzymatic method, and effects of pH, enzyme concentration, temperature on the yield of microcrystalline cellulose were studied. The optimal technology conditions were determined by single factor experiment and Box-Behnken response surface methodology. The results indicated that the optimized conditions for preparation of microcrystalline cellulose by ezzymatic method were as follows： pH 4.5, enzyme concentration 0.40%, temperature 45 ℃. Under these conditions, the yield of microcrystalline cellulose was 94.9%. The water holding capacity and swelling capacity of the microcrystalline cellulose were（7.48±0.28） g·g^-1 and（5.61±0.17） m L·g^-1, respectively. The granularity of the product was smaller than that of the standard microcrystalline cellulose in the market, but it was basically similar to the bagasse microcrystalline cellulose prepared by the chemical method.