Environmentally benign extraction of cellulose from dunchi fiber for nanocellulose fabrication.

International Journal of Biological Macromolecules
Muhammad Naveed KhanMuhammad Imran Din

Abstract

In the current study, cellulose was extracted from the plant dunchi fiber by using an ecofriendly method followed by preparation of nanocellulose. The procedure involved an alkali treatment and chlorine-free bleaching for removal of lignin and hemicelluloses from material. Fourier transform infrared (FTIR) spectroscopy provided the evidence about removal of hemicellulose and lignin. The morphological changes in the surface of lignocellulosic fibers were studied through scanning electron microscopy (SEM). X-ray Diffraction (XRD) analysis measured the degree of crystallinity of extracted cellulosic material. By using Segal method, the degree of crystallinity was found 66.7%. Crystal thickness was determined by Scherrer equation and its value was found to be 40.07 Å. The values were closed to the values observed for commercial microcrystalline cellulose (MCC). The TGA curve showed the thermal degradation pattern of the cellulosic material and it was closed to the thermal behavior of pure cellulose. Finally, nanocellulose was produced by acid hydrolysis from the obtained cellulosic material. Transmission electron microscopy (TEM) showed the existence of nanocellulose with an average aspect ratio of 10.45 ± 3.44. In the future, dunc...Continue Reading

References

Feb 19, 2004·Journal of Agricultural and Food Chemistry·Xiao-Feng SunJing-Xia Sun
Apr 30, 2005·Angewandte Chemie·Dieter KlemmAndreas Bohn
Aug 21, 2008·Biopolymers·Zhenzhen WanShuxun Cui
May 14, 2011·Chemical Society Reviews·Robert J MoonJeff Youngblood
Mar 13, 2012·Trends in Biotechnology·Edmond LamJohn H T Luong
Oct 10, 2012·Carbohydrate Polymers·João Paulo Saraiva MoraisAna Ribeiro Cassales
Feb 13, 2013·Carbohydrate Polymers·Nibedita KasyapiAnil K Bhowmick
Feb 13, 2013·Carbohydrate Polymers·Eldho AbrahamS S Narine
Aug 31, 2013·Carbohydrate Polymers·Sonakshi MaitiDagang Liu
Sep 1, 2015·International Journal of Biological Macromolecules·Martin George ThomasSabu Thomas
Oct 3, 2015·Carbohydrate Polymers·Bhawna SoniBarakat Mahmoud
Mar 8, 2017·Carbohydrate Polymers·Subrata Mondal
Nov 7, 2017·Carbohydrate Polymers·Subair NaduparambathPurushothaman E

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