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Article: Effect of compounds released during pretreatment of wheat straw on microbial growth and enzymatic hydrolysis rates

TitleEffect of compounds released during pretreatment of wheat straw on microbial growth and enzymatic hydrolysis rates
Authors
Issue Date2007
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/71002188
Citation
Biotechnology And Bioengineering, 2007, v. 96 n. 2, p. 250-258 How to Cite?
AbstractIn the process of producing ethanol from lignocellulosic materials such as wheat straw, compounds that can act inhibitory to enzymatic hydrolysis and to cellular growth may be generated during the pretreatment. Ethanol production was evaluated on pretreated wheat straw hydrolysate using four different recombinant Saccharomyces cerevisiae strains, CPB.CR4, CPB.CB4, F12, and FLX. The fermentation performance of the four S. cerevisiae strains was tested in hydrolysate of wheat straw that has been pretreated at high dry matter content (220 g/L dry matter). The results clearly showed that F12 was the most robust strain, whereas the other three strains were strongly inhibited when the fraction of hydrolysate in the fermentation medium was higher than 60% (v/v). Furthermore, the impact of different lignin derivatives commonly found in the hydrolysate of pretreated wheat straw, was tested on two different enzyme mixtures, a mixture of Celluclast 1.5 L FG and Novozym 188 (3:1) and one crude enzyme preparation produced from Penicillium brasilianum IBT 20888. From all the potential inhibiting compounds that were tested, formic acid had the most severe influence on the hydrolysis rate resulting in a complete inactivation of the two enzyme mixtures. © 2006 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/181243
ISSN
2015 Impact Factor: 4.243
2015 SCImago Journal Rankings: 1.633
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorPanagiotou, Gen_US
dc.contributor.authorOlsson, Len_US
dc.date.accessioned2013-02-21T02:03:27Z-
dc.date.available2013-02-21T02:03:27Z-
dc.date.issued2007en_US
dc.identifier.citationBiotechnology And Bioengineering, 2007, v. 96 n. 2, p. 250-258en_US
dc.identifier.issn0006-3592en_US
dc.identifier.urihttp://hdl.handle.net/10722/181243-
dc.description.abstractIn the process of producing ethanol from lignocellulosic materials such as wheat straw, compounds that can act inhibitory to enzymatic hydrolysis and to cellular growth may be generated during the pretreatment. Ethanol production was evaluated on pretreated wheat straw hydrolysate using four different recombinant Saccharomyces cerevisiae strains, CPB.CR4, CPB.CB4, F12, and FLX. The fermentation performance of the four S. cerevisiae strains was tested in hydrolysate of wheat straw that has been pretreated at high dry matter content (220 g/L dry matter). The results clearly showed that F12 was the most robust strain, whereas the other three strains were strongly inhibited when the fraction of hydrolysate in the fermentation medium was higher than 60% (v/v). Furthermore, the impact of different lignin derivatives commonly found in the hydrolysate of pretreated wheat straw, was tested on two different enzyme mixtures, a mixture of Celluclast 1.5 L FG and Novozym 188 (3:1) and one crude enzyme preparation produced from Penicillium brasilianum IBT 20888. From all the potential inhibiting compounds that were tested, formic acid had the most severe influence on the hydrolysis rate resulting in a complete inactivation of the two enzyme mixtures. © 2006 Wiley Periodicals, Inc.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/71002188en_US
dc.relation.ispartofBiotechnology and Bioengineeringen_US
dc.subject.meshEthanol - Metabolismen_US
dc.subject.meshFermentationen_US
dc.subject.meshFormates - Pharmacologyen_US
dc.subject.meshHydrolysisen_US
dc.subject.meshSaccharomyces Cerevisiae - Drug Effects - Enzymology - Growth & Developmenten_US
dc.subject.meshTime Factorsen_US
dc.subject.meshTriticum - Metabolismen_US
dc.titleEffect of compounds released during pretreatment of wheat straw on microbial growth and enzymatic hydrolysis ratesen_US
dc.typeArticleen_US
dc.identifier.emailPanagiotou, G: gipa@hku.hken_US
dc.identifier.authorityPanagiotou, G=rp01725en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/bit.21100en_US
dc.identifier.pmid16865730en_US
dc.identifier.scopuseid_2-s2.0-33846936767en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846936767&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume96en_US
dc.identifier.issue2en_US
dc.identifier.spage250en_US
dc.identifier.epage258en_US
dc.identifier.isiWOS:000243449100006-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridPanagiotou, G=8566179700en_US
dc.identifier.scopusauthoridOlsson, L=7203077540en_US

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