Data/hora: 06/06/2024 04:44:52

Provedor de dados: | 52
País: | Brazil
Título: | Comparative performance of microbial lipases immobilized on magnetic polysiloxane polyvinyl alcohol particles
Autores: | Bruno,Laura Maria; Lima Filho,José Luiz de; Castro,Heizir Ferreira de.
Data: | 2008-10-01
Ano: | 2008
Palavras-chave: | Candida lipase; Mucor lipase; Hybrid matrix; Immobilization.
Resumo: | Microbial lipase from Mucor miehei and Candida rugosa were immobilized by covalent binding onto magnetized polysiloxane polyvinyl alcohol particles (POS-PVA). The resulting immobilized derivatives were evaluated in aqueous solution (olive oil hydrolysis) and organic solvent (butyl butyrate synthesis). Higher catalytic activities were found when the coupling procedure was made with M. miehei lipase. Immobilized M. miehei lipase also showed a better operational stability and a higher half-life than C. rugosa lipase after the successive batches of esterification. The performance of C. rugosa immobilized derivative was constrained by the low lipase loading used in the immobilizing step. Further information regarding the both immobilized derivatives was also obtained through chemical composition (FTIR).
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500003
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132008000500003
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.51 n.5 2008
Fonte: | info:eu-repo/semantics/openAccess