Data/hora: 01/06/2024 02:12:05

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Lab-Scale production of Bacillus atrophaeus' spores by solid state fermentation in fifferent types of bioreactors	
Autores: 	Sella,Sandra Regina Barroso Ruiz; Guizelini,Belquis Palácio; Vandenberghe,Luciana Porto de Souza; Medeiros,Adriane Bianchi Pedroni; Soccol,Carlos Ricardo.	
Data: 	2009-11-01	
Ano: 	2009	
Palavras-chave: 	Bacillus atrophaeus; Spores; Solid state fermentation; Column bioreactor; Biofilm.	
Resumo: 	Studies were conducted to evaluate Bacillus atrophaeus spores' production by solid-state fermentation (SSF) using sugarcane bagasse as support and soybean molasses as substrate at lab-scale in column bioreactors (forced aeration), plastic bags and Erlenmeyer flasks (aeration by diffusion). Different moisture contents (84%, 86% and 88%; 89%, 91% and 93%) and aeration rates (30mL/min, 45mL/min, 60mL/min and 90mL/min) were studied. The best condition for spore production (3.3x10(10) CFU.g-¹dry matter) in column bioreactor was 80% of initial humidity and no aeration. In Erlenmeyer flasks and plastic bags the best sporulation production reached 1.7 up to 4.7x10(10) CFU.g-1dry matter with 88-93% of initial moisture. The aeration rate had no significant effect on the spore yield. The initial moisture had a significant effect depending on the bioreactor type. Sporulation kinetic's assay was carried out and it showed the possibility to reduce the time of spore formation in two days.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700021	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132009000700021	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.52 n.spe 2009	
Fonte: 	info:eu-repo/semantics/openAccess