[1]唐卫,何玉财,勇强.麦秆及其制浆废弃物的组分分离与结构特性表征[J].常州大学学报(自然科学版),2025,37(01):58-67.[doi:10.3969/j.issn.2095-0411.2025.01.007]
　TANG Wei,HE Yucai,YONG Qiang.Component separation and structural characterization of wheat straw and its pulping waste[J].Journal of Changzhou University(Natural Science Edition),2025,37(01):58-67.[doi:10.3969/j.issn.2095-0411.2025.01.007]
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麦秆及其制浆废弃物的组分分离与结构特性表征()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第37卷
期数:
2025年01期
页码:
58-67
栏目:
生物医药工程
出版日期:
2025-01-22

文章信息/Info

Title:
Component separation and structural characterization of wheat straw and its pulping waste
文章编号:
2095-0411(2025)01-0058-10
作者:
唐卫1; 何玉财1; 勇强2
1.常州大学 药学院, 江苏 常州 213164; 2.南京林业大学 化学工程学院, 江苏 南京 210018)
Author(s):
TANG Wei1;  HE Yucai1;  YONG Qiang2
1.School of Pharmacy, Changzhou University, Changzhou 213164, China; 2.School of Chemical Engineering, Nanjing Forestry University, Nanjing 210018, China
关键词:
麦秆;  麦糠;  纤维素;  半纤维素;  木质素
Keywords:
wheat straw;  waste wheat straw;  cellulose;  hemicellulose;  lignin
分类号:
Q 815
DOI:
10.3969/j.issn.2095-0411.2025.01.007
文献标志码:
A
摘要:
麦秆资源作为中国产量丰富的秸秆资源,可采用生物化学转化方法制备高价值的可发酵性和功能性糖。研究采用亚氯酸钠漂白法和磨木木质素提取法从麦秆及其制浆废弃物(麦糠)中分离获得高纯度的纤维素、半纤维素和木质素,并对其各组分结构特征及理化特性进行全面解析。结果表明,麦秆和麦糠中的纤维素主要由聚集态的葡聚糖组成,而半纤维素主要成分质量分数分别为82.6%木聚糖、5.3%阿拉伯聚糖、1.5%半乳聚糖和79.3%木聚糖、7.6%阿拉伯聚糖、2.0%半乳聚糖。麦秆和麦糠中的木质素中同时含有3种苯丙烷结构单元:紫丁香基单元、愈创木基单元和对羟基苯基单元,且结构单元之间的连接键主要由β-O-4,β-β和β-5所组成。麦秆和麦糠中的木质素的羟基含量和羧基含量也存在差异,总量分别为5.68,0.11 mmol/g和5.98,0.14 mmol/g。
Abstract:
Wheat straw resources, as the straw resources with abundant output in our country, can be used to prepare the high value fermentable and functional sugars by biochemical transformation method. In this work, high purity of cellulose, hemicellulose, and lignin were isolated from wheat straw and its pulping waste(waste wheat straw)by sodium chlorite bleaching method and milled-wood-lignin extraction method. The structural characteristics and physiochemical properties of each component were analyzed. The results showed that the cellulose of wheat straw and waste wheat straw was mainly composed of glucan, and the main components of hemicellulose were 82.6% xylan, 5.3% araban, 1.5% galactoan and 79.3% xylan, 7.6% araban, 2.0% galactoan, respectively. There are three phenylpropane structural units in the lignin of wheat straw and waste wheat straw: syringyl, guaiacyl and p-hydroxyphenyl, and the bonds between the structural units were mainly composed of β-O-4, β-β, and β-5. The hydroxyl and carboxyl contents of lignin were also slightly different, and the total contents were 5.68, 0.11 mmol/g and 5.98, 0.14 mmol/g, respectively.

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备注/Memo

备注/Memo:
收稿日期: 2024-09-26。
作者简介: 唐卫(1994—), 男, 江苏宿迁人, 博士, 讲师。 E-mail: tw2022@cczu.edu.cn
更新日期/Last Update: 1900-01-01