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Original Article | Open Access

Characterization and Comparison of Cellulose Extraction from Ginger Stalk by Two Different Chemical Treatments

CanCan Zhou1, XiaoMing Song1, Shuai Wang1, FuShan Chen2( )
College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, China
College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong Province, 266042, China
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Abstract

Agricultural residues are important renewable biomass resources that have not received much research attention. Ginger stalk is a major agricultural waste in China.The extraction of cellulose from ginger stalk would convert this waste into a high value-added product and, simultaneously, contribute to environmental protection. This research studied the characteristics of cellulose extracted from ginger stalk by two different treatments: (ⅰ) potassium hydroxide (KOH) treatment and (ⅱ) nitric acid-ethanol (NAE) treatment. The optimal condition for the KOH treatment was obtained, it was at 1∶30 solidto-liquid ratio (SLR) for 5 h extraction time with 14 wt% KOH. The optimal condition for the NAE treatment was as follows: 1∶40 SLR, 4 h extraction time, and a reaction temperature of 90℃. However, the cellulose obtained by NAE treatment was severely degraded than that by KOH treatment. The Fourier-transform infrared (FT-IR) spectroscopy analyses revealed that both treatments successfully dissolved the lignin and hemicellulose. Two treatments showed a higher cellulose yield, and the extracted cellulose had more crystal structure.

Keywords

ginger stalkcellulose extractionpotassium hydroxide treatmentnitric acid-ethanol treatment

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Paper and Biomaterials
Volume 2 Issue 2,
April 2017
Pages 1-7
DOI: 10.26599/PBM.2017.9260008
Cite this article:
Zhou C, Song X, Wang S, et al. Characterization and Comparison of Cellulose Extraction from Ginger Stalk by Two Different Chemical Treatments. Paper and Biomaterials, 2017, 2(2): 1-7. https://doi.org/10.26599/PBM.2017.9260008

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Received: 14 October 2016
Accepted: 02 December 2016
Published: 25 April 2017
© 2017 Paper and Biomaterials Editorial Board

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
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