Extraction and Characterization of Nanocrystalline Cellulose from Cassava Bagasse

Journal Article · Thu Feb 15 04:00:00 EST 2018 · Journal of Polymers and the Environment

DOI:https://doi.org/10.1007/S10924-017-0983-8· OSTI ID:22788246

Travalini, A. P. ^[1]; Prestes, E.; Pinheiro, L. A. ^[2]

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1. State University of Ponta Grossa (UEPG), Department of Food Engineering (Brazil)
2. State University of Ponta Grossa (UEPG), Department of Material Science (Brazil)

The objective of this study was to produce highly crystalline nanocellulose from cassava bagasse, which is a by-product from the cassava starch industry that contains 15 to 50 wt% cellulose fibers. For this purpose, the lignocellulosic fiber that was isolated from cassava bagasse was bleached with sodium chlorite and hydrolyzed with sulfuric acid. The obtained suspension was spray-dried and the resulting microparticles were characterized by X-ray diffractometry to determine the crystallinity index. Microcrystalline cellulose was subjected to the same processing conditions and considered as a reference. The crystallinity index of the nanocellulose extracted from the cassava bagasse was higher than the crystallinity index of the nanocellulose extracted from the microcrystalline cellulose; 84.1 and 78.7%, respectively. No other studies have reported cellulose nanocrystals from cassava bagasse with a high crystallinity index. The nanocrystalline cellulose produced in this study is very promising for use in innovative industrial applications.

• OSTI ID: 22788246
• Journal Information: Journal of Polymers and the Environment, Journal Name: Journal of Polymers and the Environment Journal Issue: 2 Vol. 26; ISSN 1566-2543
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
BAGASSE
BY-PRODUCTS
CASSAVA
CELLULOSE
CHLORATES
CRYSTALS
EXTRACTION
NANOSTRUCTURES
SODIUM COMPOUNDS
SPRAY DRYING
STARCH
SULFURIC ACID
X-RAY DIFFRACTION