Artículos de revistas
Characterization of a commercial cellulase for hydrolysis of agroindustrial substrates
Registration in:
Bioprocess And Biosystems Engineering. Springer, v. 35, n. 7, n. 1229, n. 1237, 2012.
1615-7591
WOS:000307514500020
10.1007/s00449-012-0710-8
Author
Balsan, G
Astolfi, V
Benazzi, T
Meireles, MAA
Maugeri, F
Di Luccio, M
Dal Pra, V
Mossi, AJ
Treichel, H
Mazutti, MA
Institutions
Abstract
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) This work is focused on the characterization of a commercial cellulase in terms of optimum pH and temperature, stability to pH and temperature and affinity of this enzyme to several substrates, determining the Michaelis-Menten parameters. Maximum activity of cellulase was obtained for the temperature range from 40 to 50 A degrees C and pH from 5.2 to 5.5. Enzyme activity decreased only 15% after 150 h of reaction at temperatures between 30 and 50 A degrees C. No loss of activity was observed at pH 5.0 and 5.5. The cellulase showed satisfactory results in the hydrolysis of agroindustrial substrates, since similar activity was verified on filter paper and other agroindustrial substrates. 35 7 1229 1237 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fapergs Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)