| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Evaluation of oat hull hemicellulosic hydrolysate fermentability employing Pichia stipitis
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| Autores: |
Chaud,Luciana Cristina Silveira
Silva,Débora Danielle Virgínio da
Mattos,Rafael Taino de
Felipe,Maria das Graças de Almeida
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| Data: |
2012-10-01
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| Ano: |
2012
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| Palavras-chave: |
Pichia stipitis
Hemicellulosic hydrolysate
Oat hull
Ethanol
Activated charcoal
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| Resumo: |
Oat hull hemicellulosic hydrolysate obtained by diluted acid hydrolysis was employed as fermentation medium for Pichia stipitis cultivation. A comparison between the use of treated hydrolysate with 1% activated charcoal to reduce the toxic compounds generated during the hydrolysis process and untreated hydrolysate as a control was conducted. In the cultures using treated hydrolysate the total consumption of glucose, low xylose consumption and ethanol and glycerol formation were observed. The medium formulated with untreated hydrolysate showed morphological cell modifications with consequently cell death, no ethanol formation and formation of glycerol as byproduct of fermentative process, probably as a response to stressful conditions to yeast due to presence of high concentration of toxic compounds. Thus, further studies are suggested in order to determine the best conditions for hydrolysis and detoxification of the hydrolysate to improve the fermentative performance of P. stipitis.
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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=S1516-89132012000500017
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132012000500017
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.55 n.5 2012
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| Direitos: |
info:eu-repo/semantics/openAccess
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