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Title: Utilization of deep eutectic solvent as a degumming protocol for Apocynum venetum bast

Abstract

Deep eutectic solvent (DES) pretreatment coupled with alkaline degumming on Apocynum venetum bast was studied for developing an eco-friendly and effective degumming method. Here, a 1:2 mixture of choline chloride and urea was used in a microwave-assisted DES pretreatment optimized to 60 min and 110 °C. The impact of the deep eutectic solvent pretreatment on the properties of produced semi-degummed and refined dry fibers were assessed by examining the fiber chemical composition, surface microstructure, cellulose crystallinity, degree of polymerization, and fiber thermal properties. The combined DES and alkaline degumming treatment effectively removed the gummy matter including hemicellulose and lignin from the A. venetum bast, providing a smooth and clean fiber surface. This combined DES and alkaline degumming treatment also shows the ability to extract amorphous cellulose, leading to an increase of fiber crystallinity and a decrease of the average cellulose molecular weight. The thermal stability of the fibers was improved significantly after the degumming treatment. The refined dry fibers produced by this combined DES-alkaline treatment exhibited comparable chemical and physical properties (e.g. residual gum content, fiber length, fiber fineness, breaking tenacity) compared with traditionally alkali degumming method. These results revealed that DES is a practical and feasible pretreatment protocol formore » A. venetum bast degumming.« less

Authors:
 [1];  [1];  [2];  [3];  [3];  [2];  [4]
+ Show Author Affiliations
  1. Qingdao Univ. (China). College of Textiles
  2. Qingdao Univ. (China). College of Textiles; State Key Lab. of Biopolyssacharide Fiber Forming and Eco-Textile, Qingdao (China)
  3. State Key Lab. of Biopolyssacharide Fiber Forming and Eco-Textile, Qingdao (China)
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE; National Key Research and Development Plan; Natural Science Foundation of the Shandong of China; National Science Foundation of China; Natural Science Foundation of the Jiangsu of China
OSTI Identifier:
1649141
Grant/Contract Number:  
AC05-00OR22725; 2017YFB0309702; ZR2019QEM007; 51706044; BK20170666
Resource Type:
Accepted Manuscript
Journal Name:
Cellulose
Additional Journal Information:
Journal Volume: 26; Journal Issue: 13-14; Journal ID: ISSN 0969-0239
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; apocynum venetum; fiber; deep eutectic solution; alkaline; degumming; lignin

Citation Formats

Song, Yan, Kai, Nie, Jiang, Wei, Zhang, Yuanming, Ben, Haoxi, Han, Guangting, and Ragauskas, Arthur J. Utilization of deep eutectic solvent as a degumming protocol for Apocynum venetum bast. United States: N. p., 2019. Web. https://doi.org/10.1007/s10570-019-02654-z.
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Song, Yan, Kai, Nie, Jiang, Wei, Zhang, Yuanming, Ben, Haoxi, Han, Guangting, & Ragauskas, Arthur J. Utilization of deep eutectic solvent as a degumming protocol for Apocynum venetum bast. United States. https://doi.org/10.1007/s10570-019-02654-z
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Song, Yan, Kai, Nie, Jiang, Wei, Zhang, Yuanming, Ben, Haoxi, Han, Guangting, and Ragauskas, Arthur J. Tue . "Utilization of deep eutectic solvent as a degumming protocol for Apocynum venetum bast". United States. https://doi.org/10.1007/s10570-019-02654-z. https://www.osti.gov/servlets/purl/1649141.
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@article{osti_1649141,
title = {Utilization of deep eutectic solvent as a degumming protocol for Apocynum venetum bast},
author = {Song, Yan and Kai, Nie and Jiang, Wei and Zhang, Yuanming and Ben, Haoxi and Han, Guangting and Ragauskas, Arthur J.},
abstractNote = {Deep eutectic solvent (DES) pretreatment coupled with alkaline degumming on Apocynum venetum bast was studied for developing an eco-friendly and effective degumming method. Here, a 1:2 mixture of choline chloride and urea was used in a microwave-assisted DES pretreatment optimized to 60 min and 110 °C. The impact of the deep eutectic solvent pretreatment on the properties of produced semi-degummed and refined dry fibers were assessed by examining the fiber chemical composition, surface microstructure, cellulose crystallinity, degree of polymerization, and fiber thermal properties. The combined DES and alkaline degumming treatment effectively removed the gummy matter including hemicellulose and lignin from the A. venetum bast, providing a smooth and clean fiber surface. This combined DES and alkaline degumming treatment also shows the ability to extract amorphous cellulose, leading to an increase of fiber crystallinity and a decrease of the average cellulose molecular weight. The thermal stability of the fibers was improved significantly after the degumming treatment. The refined dry fibers produced by this combined DES-alkaline treatment exhibited comparable chemical and physical properties (e.g. residual gum content, fiber length, fiber fineness, breaking tenacity) compared with traditionally alkali degumming method. These results revealed that DES is a practical and feasible pretreatment protocol for A. venetum bast degumming.},
doi = {10.1007/s10570-019-02654-z},
journal = {Cellulose},
number = 13-14,
volume = 26,
place = {United States},
year = {2019},
month = {7}
}
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https://doi.org/10.1007/s10570-019-02654-z
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