Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/22568
Título: | Treatment of cotton with an alkaline Bacillus spp cellulase : activity towards crystalline cellulose |
Autor(es): | Caparrós Vásquez, Cristina Maria López, C. Torrell, M. Lant, Neil Smets, Johan Paulo, Artur Cavaco |
Palavras-chave: | Alkaline cellulase Cellulose fibres Cotton Microfibrils |
Data: | 2012 |
Editora: | Wiley |
Revista: | Biotechnology Journal |
Resumo(s): | We analysed the influence of several enzymatic treatment processes using an alkaline cellulase enzyme from Bacillus spp. on the sorption properties of cotton fabrics. Although cellulases are commonly applied in detergent formulations due to their anti-redeposition and depilling benefits, determining the mechanism of action of alkaline cellulases on cotton fibres requires a deeper understanding of the morphology and structure of cotton fibres in terms of fibre cleaning. The accessibility of cellulose fibres was studied by evaluating the iodine sorption value and by fluorescent-labelled enzyme microscopy; the surface morphology of fabrics was analysed by scanning microscopy. The action of enzyme hydrolysis over short time periods can produce fibrillation on cotton fibre surface without any release of cellulosic material. The results indicate that several short consecutive treatments were more effective in increasing the fibre accessibility than one long treatment. In addition, no detectable hydrolytic activity, in terms of reducing sugar production, was found. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/22568 |
DOI: | 10.1002/biot.201000352 |
ISSN: | 1860-7314 |
Versão da editora: | http://onlinelibrary.wiley.com/journal |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DET/2C2T - Artigos em revistas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
2012 Treatment of cotton with an alkaline Bacillus spp cellulase- Activity towards crystalline cellulose.pdf | Treatment of cotton with an alkaline Bacillus spp cellulase: Activity towards crystalline cellulose | 614,05 kB | Adobe PDF | Ver/Abrir |