| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Lab-Scale production of Bacillus atrophaeus' spores by solid state fermentation in fifferent types of bioreactors
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| Autores: |
Sella,Sandra Regina Barroso Ruiz
Guizelini,Belquis Palácio
Vandenberghe,Luciana Porto de Souza
Medeiros,Adriane Bianchi Pedroni
Soccol,Carlos Ricardo
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| Data: |
2009-11-01
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| Ano: |
2009
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| Palavras-chave: |
Bacillus atrophaeus
Spores
Solid state fermentation
Column bioreactor
Biofilm
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700021
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132009000700021
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.52 n.spe 2009
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| Direitos: |
info:eu-repo/semantics/openAccess
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