Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/16866
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Pereira, Rogério S. | - |
dc.contributor.author | Mussatto, Solange I. | - |
dc.contributor.author | Roberto, Inês Conceição | - |
dc.date.accessioned | 2012-02-07T14:52:36Z | - |
dc.date.available | 2012-02-07T14:52:36Z | - |
dc.date.issued | 2011 | - |
dc.date.submitted | 2011 | - |
dc.identifier.issn | 1367-5435 | por |
dc.identifier.issn | 1475-5535 | por |
dc.identifier.uri | https://hdl.handle.net/1822/16866 | - |
dc.description.abstract | The inhibitory action of acetic acid, ferulic acid, and syringaldehyde on metabolism of Candida guilliermondii yeast during xylose to xylitol bioconversion was evaluated. Assays were performed in buffered and nonbuffered semidefined medium containing xylose as main sugar (80.0 g/l), supplemented or not with acetic acid (0.8–2.6 g/l), ferulic acid (0.2–0.6 g/l), and/or syringaldehyde (0.3–0.8 g/l), according to a 23 full factorial design. Since only individual effects of the variables were observed, assays were performed in a next step in semidefined medium containing different concentrations of each toxic compound individually, for better understanding of their maximum concentration that can be present in the fermentation medium without affecting yeast metabolism. It was concluded that acetic acid, ferulic acid, and syringaldehyde are compounds that may affect Candida guilliermondii metabolism (mainly cell growth) during bioconversion of xylose to xylitol. Such results are of interest and reveal that complete removal of toxic compounds from the fermentation medium is not necessary to obtain efficient conversion of xylose to xylitol by Candida guilliermondii. Fermentation in buffered medium was also considered as an alternative to overcome the inhibition caused by these toxic compounds, mainly by acetic acid. | por |
dc.language.iso | eng | por |
dc.publisher | Society for Industrial Microbiology | por |
dc.rights | restrictedAccess | por |
dc.subject | Xylose | por |
dc.subject | Xylitol | por |
dc.subject | Candida guilliermondii | por |
dc.subject | Toxic compounds | por |
dc.subject | Fermentation | por |
dc.title | Inhibitory action of toxic compounds present in lignocellulosic hydrolysates on xylose to xylitol bioconversion by candida guilliermondii | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 71 | por |
oaire.citationEndPage | 78 | por |
oaire.citationIssue | 1 | por |
oaire.citationTitle | Journal of Industrial Microbiology and Biotechnology | por |
oaire.citationVolume | 38 | por |
dc.identifier.doi | 10.1007/s10295-010-0830-6 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Journal of Industrial Microbiology and Biotechnology | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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2966.pdf Acesso restrito! | 293,17 kB | Adobe PDF | Ver/Abrir |