纤维素科学与技术2024，Vol.32Issue(3)：32-37,6.DOI:10.16561/j.cnki.xws.2024.03.08
逆流冲泡法快速测定植物纤维原料热水可溶物的分析方法研究
Study on Analytical Method for Rapid Determination of Hot Water-Soluble Substances in Plant Fiber Raw Materials by Countercurrent Brewing Method
摘要
Abstract
The content of hot water soluble matter can indirectly reflect the performance of plant fiber raw materials for pulp and paper making,and a quick and accurate judgment of its content is necessary for traditional pulp and paper making,cellulose fiber purification and other related industries.However,the hot water static extraction method adopted in the current national standard requires 4 h of extraction time and at least 5 h of drying and equilibrium time,and such a time-consuming detection process is unfavorable for the rapid judgment of the content of hot water soluble matter.In view of this,this paper adopts multiple countercurrent brewing method for rapid extraction of plant fiber raw materials,and the subsequent high-temperature drying process was studied.The optimized conditions for rapid and relatively accurate determination of soluble matter content in hot water are as follows:the mass of plant fiber raw material to be tested is 1.50±0.2 g,the particle size is 60～80 mesh,the liquid volume of a single brewing is 100 mL,the number of times of brewing is 4 times(the total time consumed for the brewing is about 15 min),and the drying temperature is 120℃for 3 h.The results of the verification of the accuracy of the method show that the reproducibility and generalizability are good,and it can be used to extract the soluble matter content in hot water quickly.The results show that this method has good repeatability and universality,and it can be used as an alternative method to analyze the content of hot water soluble matter in plant fiber raw materials relatively quickly and accurately in relevant factories or research institutes,and it has a certain value of popularization and application.关键词
造纸纤维原料/热水可溶物/逆流冲泡法/摩卡壶/快速分析方法Key words
papermaking fiber raw materials/hot water soluble matter/countercurrent brewing method/mocha pot/rapid analysis method分类
轻工纺织引用本文复制引用
殷顺阳,彭丽娟,李梅,余盛江,陈正春,赵金涛,李伟,梁胜,何亮..逆流冲泡法快速测定植物纤维原料热水可溶物的分析方法研究[J].纤维素科学与技术,2024,32(3):32-37,6.基金项目
中国烟草总公司云南省公司科技计划项目(2023530000241028) （2023530000241028）
国家自然科学基金(No.22008097). （No.22008097）
