Data/hora: 12/06/2024 05:49:30

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Evaluation of oat hull hemicellulosic hydrolysate fermentability employing Pichia stipitis	
Autores: 	Chaud,Luciana Cristina Silveira; Silva,Débora Danielle Virgínio da; Mattos,Rafael Taino de; Felipe,Maria das Graças de Almeida.	
Data: 	2012-10-01	
Ano: 	2012	
Palavras-chave: 	Pichia stipitis; Hemicellulosic hydrolysate; Oat hull; Ethanol; Activated charcoal.	
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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500017	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132012000500017	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.55 n.5 2012	
Fonte: 	info:eu-repo/semantics/openAccess