Xylitol from rice husks by acid hydrolysis and Candida yeast fermentation

An investigation was conducted into the production of xylose by acid hydrolysis of rice husks and its subsequent bioconversion to xylitol. The parameters were optimised using the response surface methodology. The fermentation stage took place with the aid of the yeast species Candida guilliermondii...

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Main Authors: Magale K. D. Rambo, Daiane B. Bevilaqua, Carla G. B. Brenner, Ayrton F. Martins, Débora N. Mario, Sydney H. Alves, Carlos A. Mallmann
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2013-01-01
Series:Química Nova
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000500004&lng=en&tlng=en
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author Magale K. D. Rambo
Daiane B. Bevilaqua
Carla G. B. Brenner
Ayrton F. Martins
Débora N. Mario
Sydney H. Alves
Carlos A. Mallmann
author_facet Magale K. D. Rambo
Daiane B. Bevilaqua
Carla G. B. Brenner
Ayrton F. Martins
Débora N. Mario
Sydney H. Alves
Carlos A. Mallmann
author_sort Magale K. D. Rambo
collection DOAJ
description An investigation was conducted into the production of xylose by acid hydrolysis of rice husks and its subsequent bioconversion to xylitol. The parameters were optimised using the response surface methodology. The fermentation stage took place with the aid of the yeast species Candida guilliermondii and Candida tropicalis. An evaluation of the influence of several biomass pre-treatments was also performed. The effects of the acid concentration and hydrolysate pH on xylitol global yield were also assessed, and the highest yield of xylitol was 64.0% (w/w). The main products, xylose and xylitol, were identified and quantified by means of liquid chromatography.
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spelling doaj.art-56b26fb306bf494fa8f460cee11a49a52022-12-21T22:24:17ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642013-01-0136563463910.1590/S0100-40422013000500004S0100-40422013000500004Xylitol from rice husks by acid hydrolysis and Candida yeast fermentationMagale K. D. Rambo0Daiane B. Bevilaqua1Carla G. B. Brenner2Ayrton F. Martins3Débora N. Mario4Sydney H. Alves5Carlos A. Mallmann6Universidade Federal de Santa MariaUniversidade Federal de Santa MariaUniversidade Federal de Santa MariaUniversidade Federal de Santa MariaUniversidade Federal de Santa MariaUniversidade Federal de Santa MariaUniversidade Federal de Santa MariaAn investigation was conducted into the production of xylose by acid hydrolysis of rice husks and its subsequent bioconversion to xylitol. The parameters were optimised using the response surface methodology. The fermentation stage took place with the aid of the yeast species Candida guilliermondii and Candida tropicalis. An evaluation of the influence of several biomass pre-treatments was also performed. The effects of the acid concentration and hydrolysate pH on xylitol global yield were also assessed, and the highest yield of xylitol was 64.0% (w/w). The main products, xylose and xylitol, were identified and quantified by means of liquid chromatography.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000500004&lng=en&tlng=enxylitolfermentationrice husks
spellingShingle Magale K. D. Rambo
Daiane B. Bevilaqua
Carla G. B. Brenner
Ayrton F. Martins
Débora N. Mario
Sydney H. Alves
Carlos A. Mallmann
Xylitol from rice husks by acid hydrolysis and Candida yeast fermentation
Química Nova
xylitol
fermentation
rice husks
title Xylitol from rice husks by acid hydrolysis and Candida yeast fermentation
title_full Xylitol from rice husks by acid hydrolysis and Candida yeast fermentation
title_fullStr Xylitol from rice husks by acid hydrolysis and Candida yeast fermentation
title_full_unstemmed Xylitol from rice husks by acid hydrolysis and Candida yeast fermentation
title_short Xylitol from rice husks by acid hydrolysis and Candida yeast fermentation
title_sort xylitol from rice husks by acid hydrolysis and candida yeast fermentation
topic xylitol
fermentation
rice husks
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000500004&lng=en&tlng=en
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