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- Title
Characterization and Comparison of Cellulose Extraction from Ginger Stalk by Two Different Chemical Treatments.
- Authors
CanCan Zhou; XiaoMing Song; Shuai Wang; FuShan Chen
- 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°C. 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.
- Subjects
CELLULOSE; GINGER; AGRICULTURAL wastes; BIOMASS energy; POTASSIUM hydroxide
- Publication
Paper & Biomaterials, 2017, Vol 2, Issue 2, p1
- ISSN
2096-2355
- Publication type
Article
- DOI
10.26599/pbm.2017.9260008