Xylitol production and furfural consumption by a wild type Geotrichum sp.

Background: Xylitol is a five carbons polyol with promising medical applications. It can be obtained from chemical D-xylose reduction or by microbial fermentation of Sugarcane Bagasse Hemicellulosic Hydrolysate. For this last process, some microbial inhibitors, as furfural, constitute severe bottlen...

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Autores principales:	Silveira Rocha Matos,Ítalo Thiago, do Carmo,Edson Júnior, Nogueira de Assunção,Enedina, Alves de Almeida,Richardson, Makarem Soares,Verena, Astolfi Filho,Spartaco
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2016
Materias:	Detoxification Sugarcane bagasse hemicellulosic hydrolysate Xylitol, D-Xylose reduction D-Xylose fermentation Microbial fermentation Furfural Sugarcane bagasse Hemicellulosic hydrolysate
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000600003
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spelling	oai:scielo:S0717-345820160006000032017-01-25Xylitol production and furfural consumption by a wild type Geotrichum sp.Silveira Rocha Matos,Ítalo Thiagodo Carmo,Edson JúniorNogueira de Assunção,EnedinaAlves de Almeida,RichardsonMakarem Soares,VerenaAstolfi Filho,Spartaco Detoxification Sugarcane bagasse hemicellulosic hydrolysate Xylitol, D-Xylose reduction D-Xylose fermentation Microbial fermentation Furfural Sugarcane bagasse Hemicellulosic hydrolysate Background: Xylitol is a five carbons polyol with promising medical applications. It can be obtained from chemical D-xylose reduction or by microbial fermentation of Sugarcane Bagasse Hemicellulosic Hydrolysate. For this last process, some microbial inhibitors, as furfural, constitute severe bottleneck. In this case, the use of strains able to produce xylitol simultaneously to furfural neutralization is an interesting alternative. A wild-type strain of Geotrichum sp. was detected with this ability, and its performance in xylitol production and furfural consumption was evaluated. Furthermore, were analyzed its degradation products. Results: Geotrichum sp. produced xylitol from D-xylose fermentation with a yield of 0.44 g-g-1. Furfural was fully consumed in fermentation assay and when provided in the medium until concentration of 6 g-L-1. The furfural degradation product is not an identified molecule, presenting a molecular weight of 161 g-mol-1, an uncommon feature for the microbial metabolism of this product. Conclusion: This strain presents most remarkable potential in performing furfural consumption simultaneous to xylitol production. Subsequent efforts must be employed to establish bioprocess to simultaneous detoxification and xylitol production by Geotrichum sp.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.19 n.6 20162016-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000600003en10.1016/j.ejbt.2016.08.005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Detoxification Sugarcane bagasse hemicellulosic hydrolysate Xylitol, D-Xylose reduction D-Xylose fermentation Microbial fermentation Furfural Sugarcane bagasse Hemicellulosic hydrolysate
spellingShingle	Detoxification Sugarcane bagasse hemicellulosic hydrolysate Xylitol, D-Xylose reduction D-Xylose fermentation Microbial fermentation Furfural Sugarcane bagasse Hemicellulosic hydrolysate Silveira Rocha Matos,Ítalo Thiago do Carmo,Edson Júnior Nogueira de Assunção,Enedina Alves de Almeida,Richardson Makarem Soares,Verena Astolfi Filho,Spartaco Xylitol production and furfural consumption by a wild type Geotrichum sp.
description	Background: Xylitol is a five carbons polyol with promising medical applications. It can be obtained from chemical D-xylose reduction or by microbial fermentation of Sugarcane Bagasse Hemicellulosic Hydrolysate. For this last process, some microbial inhibitors, as furfural, constitute severe bottleneck. In this case, the use of strains able to produce xylitol simultaneously to furfural neutralization is an interesting alternative. A wild-type strain of Geotrichum sp. was detected with this ability, and its performance in xylitol production and furfural consumption was evaluated. Furthermore, were analyzed its degradation products. Results: Geotrichum sp. produced xylitol from D-xylose fermentation with a yield of 0.44 g-g-1. Furfural was fully consumed in fermentation assay and when provided in the medium until concentration of 6 g-L-1. The furfural degradation product is not an identified molecule, presenting a molecular weight of 161 g-mol-1, an uncommon feature for the microbial metabolism of this product. Conclusion: This strain presents most remarkable potential in performing furfural consumption simultaneous to xylitol production. Subsequent efforts must be employed to establish bioprocess to simultaneous detoxification and xylitol production by Geotrichum sp.
author	Silveira Rocha Matos,Ítalo Thiago do Carmo,Edson Júnior Nogueira de Assunção,Enedina Alves de Almeida,Richardson Makarem Soares,Verena Astolfi Filho,Spartaco
author_facet	Silveira Rocha Matos,Ítalo Thiago do Carmo,Edson Júnior Nogueira de Assunção,Enedina Alves de Almeida,Richardson Makarem Soares,Verena Astolfi Filho,Spartaco
author_sort	Silveira Rocha Matos,Ítalo Thiago
title	Xylitol production and furfural consumption by a wild type Geotrichum sp.
title_short	Xylitol production and furfural consumption by a wild type Geotrichum sp.
title_full	Xylitol production and furfural consumption by a wild type Geotrichum sp.
title_fullStr	Xylitol production and furfural consumption by a wild type Geotrichum sp.
title_full_unstemmed	Xylitol production and furfural consumption by a wild type Geotrichum sp.
title_sort	xylitol production and furfural consumption by a wild type geotrichum sp.
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000600003
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Xylitol production and furfural consumption by a wild type Geotrichum sp.

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