University of Oulu

Hong, S., Song, Y., Yuan, Y., Lian, H., & Liimatainen, H. (2020). Production and characterization of lignin containing nanocellulose from luffa through an acidic deep eutectic solvent treatment and systematic fractionation. Industrial Crops and Products, 143, 111913. https://doi.org/10.1016/j.indcrop.2019.111913

Production and characterization of lignin containing nanocellulose from luffa through an acidic deep eutectic solvent treatment and systematic fractionation

Saved in:
Author: Hong, Shu1,2; Song, Yandan1; Yuan, Yang1;
Organizations: 1College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
2Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.6 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2022021018496
Language: English
Published: Elsevier, 2020
Publish Date: 2022-02-10
Description:

Abstract

In this study, lignin and hemicelluloses were partially separated from non-wood biomass of luffa sponge using an acidic deep eutectic solvent (ADES) composed of choline chloride and oxalic acid dihydrate, and the obtained cellulose-rich residue was further disintegrated into lignin containing cellulose nanocrystal (OA-CNC) and nanofiber (OA-CNF) fractions with a two-step ultrasonication treatment. The ADES had a dual purpose: to produce fractions of biomass and to accelerate the nanofibrillation of cellulose. Under optimal reaction conditions (at 90 °C for 150 min), solid fractions with cellulose content of 76.4 wt% (initially 51.8 wt%) and residual lignin content of 10.7 wt% (initially 17.8 wt%) were achieved. Ultrasonication resulted in lignin containing nanocelluloses with a high total yield (59.1 wt% vs. 50.5 wt% from reference 60% sulfuric acid hydrolysis). They consisted mainly of elongated cellulose nanofibers (OA-CNF) with an average diameter of 28 nm. The OA-CNF were further converted to flexible and foldable self-standing films with tensile strength of 134 MPa and elongation at break of 10.6%. This simplified method also presents great potential for using biomass waste (e.g., wheat straw, branches, and sawdust) to produce lignin containing nanocellulose.

see all

Series: Industrial crops and products
ISSN: 0926-6690
ISSN-E: 1872-633X
ISSN-L: 0926-6690
Volume: 143
Article number: 111913
DOI: 10.1016/j.indcrop.2019.111913
OADOI: https://oadoi.org/10.1016/j.indcrop.2019.111913
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
220 Industrial biotechnology
216 Materials engineering
221 Nanotechnology
Subjects:
Funding: This research was supported by grants from the National Natural Science Foundation of China (31370567), the Doctorate Fellowship Foundation of Nanjing Forestry University, the National First-Class disciplines, the Priority Academic Program Development of Jiangsu Higher Education Institutions, and the Academy of Finland project “Bionanochemicals” (298295).
Academy of Finland Grant Number: 298295
Detailed Information: 298295 (Academy of Finland Funding decision)
Copyright information: © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http:/creativecommons.org/licenses/by-nc-nd/4.0/
  https://creativecommons.org/licenses/by-nc-nd/4.0/