Optimization of productions of cellulolytic enzymes by Aspergillus niger using residue of mango a substrate

Ciência Rural

Tamires Carvalho Dos Santos¹  Ingrid Souza Cavalcanti¹  Renata Cristina Ferreira Bonomo¹  Nivio Batista Santana¹  Marcelo Franco¹ 

[1] ,Universidade Estadual do Sudoeste da Bahia Centro de Desenvolvimento e Difusão de Tecnologia Itapetinga BA ,Brasil

关键词: Aspergillus niger;    Pareto charts;    solid state fermentation;    Mangifera indica. L.;    Aspergillus niger;    Gráfico de Pareto;    fermentação em estado sólido;    Mangifera indica. L.;   

DOI  :  10.1590/S0103-84782011005000145

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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