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Provedor de dados:  Ciência Rural
País:  Brazil
Título:  Optimization of productions of cellulolytic enzymes by Aspergillus niger using residue of mango a substrate
Autores:  Santos,Tamires Carvalho dos
Cavalcanti,Ingrid Souza
Bonomo,Renata Cristina Ferreira
Santana,Nivio Batista
Franco,Marcelo
Data:  2011-12-01
Ano:  2011
Palavras-chave:  Aspergillus niger
Pareto charts
Solid state fermentation
Mangifera indica. L.
Resumo:  The present paper analyses the effects of water activity (0.88, 0.94 and 0.97) and of fermentation time (24, 48, 72, 96 and 120 hours) on the kinetic activity of enzymes cellulolytic, produced during the solid state fermentation of waste from the improvement of mango, with the aid of fungus species Aspergillus niger. Solid state fermentation was carried out at 35°C inside a bacteriological incubator. The statistical results indicated that the best activity for enzyme CMCase was 7.26U g-1 after 74.51 hours of fermentation, whereas for enzyme FPase was 2.55U g-1 after 98.52 hours, both presenting best results in approximately 0.928 of water activity. Pareto charts have showed that fermentation time has greater effect over the activity of enzyme CMCase, while the water activity variable has greater effect over enzyme FPase activity. During fermentation the fungus synthesized the enzymes without the need of inductors other than mango residue and water.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001200027
Editor:  Universidade Federal de Santa Maria
Relação:  10.1590/S0103-84782011005000145
Formato:  text/html
Fonte:  Ciência Rural v.41 n.12 2011
Direitos:  info:eu-repo/semantics/openAccess
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