Arabinoxylan and nanocellulose from a Kilogram-scale extraction of Barley Husk

被引：0

作者：

Börjesson M. ^{[1
]}

Härdelin L. ^{[1
]}

Nylander F. ^{[1
]}

Karlsson K. ^{[2
]}

Larsson A. ^{[1
]}

Westman G. ^{[1
]}

机构：

[1] Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg

[2] Department of Industrial and Material Science, Chalmers University of Technology, Gothenburg

来源：

BioResources | 2019年 / 13卷 / 03期

关键词：

Alkali extraction; Arabinoxylan; Barley husk; Cellulose nanocrystals; Hemicellulose; Nanocellulose;

D O I：

10.15376/biores.13.3.6201-6220

中图分类号：

学科分类号：

摘要：

Processes of extracting hemicellulose from annual plants usually neglect the cellulose fraction. This study explored the possibility of obtaining both a hemicellulose and a cellulose fraction of sufficient quality for further use, with barley husks used as the raw material. An alkaline extraction was used to isolate the biopolymers by a process in which sodium dithionite replaced the traditional sodium borohydride as the reducing agent. The cellulose fraction was successfully transformed into nanocellulose by sulfuric acid hydrolysis, and the obtained hemicellulose (i.e., arabinoxylan) displayed carbohydrate composition characteristics similar to those previously reported in the literature for processes of extracting hemicellulose from barley husks. Using this methodology, both the cellulose and hemicellulose can be isolated in high quantities of dry material and used for transformation into new bio-based materials. © 2018, BioResources.

引用

页码：6201 / 6220

页数：19

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