Study of "napier grass" delignification for production of cellulosic derivatives
Nenhuma Miniatura disponível
Citações na Scopus
16
Tipo de produção
Artigo
Data de publicação
2013
Autores
De Araujo Morandim-Giannetti A.
Albuquerque T.S.
De Carvalho R.K.C.
Araujo R.M.S.
Magnabosco R.
Albuquerque T.S.
De Carvalho R.K.C.
Araujo R.M.S.
Magnabosco R.
Orientador
Periódico
Carbohydrate Polymers
Título da Revista
ISSN da Revista
Título de Volume
Citação
DE ARAÚJO MORANDIM-GIANNETTI, ANDREIA; ALBUQUERQUE, TIAGO SANTOS; DE CARVALHO, RENATA KOBAL CAMPOS; ARAÚJO, RAMIRES MENEZES SILVA; Magnabosco, Rodrigo. Study of napier grass delignification for production of cellulosic derivatives. Carbohydrate Polymers, v. 92, n. 1, p. 849-855, 2013.
Texto completo (DOI)
Palavras-chave
URL permanente
Resumo
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 (H2O2). The best pulping conditions were 9.00% CaO for a period of 2.73 h, 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 6 h, at a temperature of 40 °C, which gave 90.98% delignification and 99.21% cellulose. The analyses were performed by using weight percent. © 2012 Elsevier Ltd. All rights reserved.