Document Detail


Study of "napier grass" delignification for production of cellulosic derivatives.
MedLine Citation:
PMID:  23218375     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Recently, much research on the evaluation of new cellulose sources has been developed. In this context, a promising source is "napier grass", which contains 30.40% lignin, 36.34% cellulose, and 34.12% hemicellulose. In this work, conditions for the delignification of "napier grass" in the laboratory were studied by using calcium oxide (CaO) and hydrogen peroxide (H(2)O(2)). The best pulping conditions were 9.00% CaO for a period of 2.73h, which resulted in 74.99% delignification and 66.58% cellulose. The best conditions for the bleaching process were pH 12 and hydrogen peroxide at concentration of 4.2% for 6h, at a temperature of 40°C, which gave 90.98% delignification and 99.21% cellulose. The analyses were performed by using weight percent.
Authors:
Andreia de Araújo Morandim-Giannetti; Tiago Santos Albuquerque; Renata Kobal Campos de Carvalho; Ramires Menezes Silva Araújo; Rodrigo Magnabosco
Related Documents :
23312005 - C2-symmetric cyclic selenium catalyzed enantioselective bromoaminocyclization.
11852535 - Synthesis and analgesic-antiinflammatory activities of novel acylarylhydrazones with a ...
24052845 - An efficient one-pot green protocol for the synthesis of 5-unsubstituted 3,4-dihydropyr...
23590535 - Studies for the total synthesis of amphidinolide p.
23642965 - Synthesis of 7-oxabicyclo[2.2.1]hept-5-en-2-yl derivatives and their screening for anti...
22073965 - Base-mediated stereospecific synthesis of aryloxy and amino substituted ethyl acrylates.
Publication Detail:
Type:  Journal Article     Date:  2012-10-08
Journal Detail:
Title:  Carbohydrate polymers     Volume:  92     ISSN:  1879-1344     ISO Abbreviation:  Carbohydr Polym     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-12-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8307156     Medline TA:  Carbohydr Polym     Country:  England    
Other Details:
Languages:  eng     Pagination:  849-55     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Departamento de Engenharia Química, Centro Universitário da FEI, Av. Humberto de Alencar Castelo Branco, 3972, 09850-901 São Bernardo do Campo, SP, Brazil. Electronic address: andreia.morandim@gmail.com.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Thermal effects on the structure of cereal starches. EPR and Raman spectroscopy studies.
Next Document:  Self-assembled nanoparticles of modified-chitosan conjugates for the sustained release of dl-?-tocop...