| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Production of 2,3-Butanediol from Sucrose by Klebsiella pneumoniae NRRL B199 in Batch and Fed-Batch Reactors
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| Autores: |
Silveira,Mauricio M.
Berbert-Molina,M.
Prata,A. M. R.
Schmidell,W.
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| Data: |
1998-01-01
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| Ano: |
1998
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| Palavras-chave: |
Klebsiella pneumoniae 2
3-butanediol/batch process fed-batch process
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| Resumo: |
In batch mode, Klebsiella pneumoniae growth and 2,3-butanediol/acetoin formation are increasingly inhibited by initial sucrose concentrations (S0) over 60 g/L. At non inhibitory conditions, a maximum sucrose consumption rate of 1,5 g/L/h was measured. With S0=204 g/L however, this rate decreased to 0.15 g/L/h. K. pneumoniae fermented 204 g/L sucrose to produce 84.3 g/L of a mixture 2,3-butanediol/acetoin with a yield of 0.41 g/g and a productivity of 1.06 g/L/h. Higher oxygen transfer rates improved the overall process rate but the product yield was reduced. Avoiding substrate inhibition, by performing the fermentation in fed-batch mode, a final 2,3-butanediol/acetoin concentration of 80.0 g/L was achieved. In this case, a productivity of 2.63 g/L/h and a product yield of 0.37 g/g were calculated.
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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=S1516-89131998000300009
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89131998000300009
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.41 n.3 1998
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| Direitos: |
info:eu-repo/semantics/openAccess
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