Document Detail

Study of "napier grass" delignification for production of cellulosic derivatives.
MedLine Citation:
PMID:  23218375     Owner:  NLM     Status:  In-Data-Review    
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.
Andreia de Araújo Morandim-Giannetti; Tiago Santos Albuquerque; Renata Kobal Campos de Carvalho; Ramires Menezes Silva Araújo; Rodrigo Magnabosco
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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.
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:
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