Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/7344
Título: | Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses |
Autor(es): | Ruzene, Denise S. Gonçalves, A. R. |
Palavras-chave: | Ethanol/water pulping Sugarcane bagasse Xylanase bleaching Fourier transform infrared spectra Principal component analysis |
Data: | Dez-2007 |
Editora: | Springer Verlag Versita |
Revista: | Chemical Papers |
Citação: | "Chemical Papers". ISSN 0366-6352. 61:6 (Dec. 2007) 472-476. |
Resumo(s): | Pulps obtained from ethanol/water cooking of sugarcane bagasse were treated at different times using xylanase enzyme obtained from Thermomyces lanuginosus IOC-4145 or commercially (Cartazyme HS, Sandoz Products Ltd.). The enzyme dosage was 18 IU per g of dry pulp and the time varied from 4 h to 12 h. When xylanase from T. lanuginosus was used, the kappa number and viscosity improved independently of the processing time used (4 h, 8 h, and 12 h). After chemical evaluation, the obtained pulps were classified using Fourier Transformed Infra-Red Spectroscopy and Principal Component Analysis. The results showed that the first three principal components explained more than 90 % of the total variance of the pulp spectra. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/7344 |
DOI: | 10.2478/s11696-007-0064-x |
ISSN: | 0366-6352 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Chemical_Papers_Denise.pdf | 169,64 kB | Adobe PDF | Ver/Abrir |