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Production of glycolipid biosurfactants, mannosylerythritol lipids, from pentoses and D-glucose/D-xylose mixtures by Pseudozyma yeast strains

2014Journal article Open access
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dc.contributor.authorFaria, Nuno Torres
dc.contributor.authorSantos, Marisa V.
dc.contributor.authorFernandes, Pedro
dc.contributor.authorFonseca, Luís Lopes
dc.contributor.authorFonseca, César
dc.contributor.authorFerreira, Frederico Castelo
dc.date.accessioned2015-01-22T11:33:00Z
dc.date.available2015-01-22T11:33:00Z
dc.date.issued2014
dc.description.abstractThe pentose-assimilating capacity of yeasts from the genus Pseudozyma, P. antarctica PYCC 5048T, P.aphidis PYCC 5535Tand P. rugulosa PYCC 5537T, was exploited towards the production of mannosylery-thritol lipids (MEL), a glycolipid with biosurfactant properties. The three strains tested were able togrow on d-xylose and l-arabinose with similar maximum specific growth rates to those estimated on d-glucose (around 0.2 h-1). The highest MEL titres (4.8–5.4 g/l) and yields (0.11–0.14 g/g) from d-xylosewere found in P. antarctica PYCC 5048T, which presented similar values to those estimated on D-glucose and on D-xylose/D-glucose mixtures. P. rugulosa PYCC 5537T showed a pattern of sugar conversion into MEL similar to P. antarctica, but at 40% lower titres. P. aphidis PYCC 5535T presented lower MEL titres from D-xylose (1.2 g/l) than from D-glucose (3.4 g/l). Nitrate supply increased sugar consumption rate and, when accompanied by D-glucose or D-xylose feeding, additional biomass production. In this case, sugar was completely consumed before sugar feeding at day 7, but not when feeding is performed at day 4. Higher MEL titres where obtained for the later condition reaching 7.3 g/l and 5.8 g/l, in fed-atchcultures with glucose and xylose, respectively.por
dc.identifier.citationFaria, N.T.; Santos, M.V.; Fernandes, P.; Fonseca, L.L.; Fonseca, C.; Ferreira, F.C. - Production of glycolipid biosurfactants, mannosylerythritol lipids, from pentoses and D-glucose/D-xylose mixtures by Pseudozyma yeast strains. In: Process Biochemistry, 2014, Vol. 49, p. 1790-1799por
dc.identifier.issn1359-5113
dc.identifier.urihttp://hdl.handle.net/10400.9/2580
dc.language.isoengpor
dc.publisherElsevierpor
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.procbio.2014.08.004por
dc.subjectLipidspor
dc.subjectBiosurfactantspor
dc.subjectPentosespor
dc.subjectXylosepor
dc.subjectPseudozyma spp.por
dc.titleProduction of glycolipid biosurfactants, mannosylerythritol lipids, from pentoses and D-glucose/D-xylose mixtures by Pseudozyma yeast strainspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1799por
oaire.citation.startPage1790por
oaire.citation.titleProcess Biochemistrypor
oaire.citation.volume49por
person.familyNameTorres Faria
person.familyNameFonseca
person.familyNameFerreira
person.givenNameNuno Ricardo
person.givenNameCésar
person.givenNameFrederico Castelo
person.identifier284260
person.identifier.ciencia-id1D10-3461-3719
person.identifier.ciencia-id4C18-FD61-0596
person.identifier.orcid0000-0002-4969-0028
person.identifier.orcid0000-0003-2448-7063
person.identifier.orcid0000-0001-5177-6237
person.identifier.ridA-6757-2010
person.identifier.ridK-8642-2012
person.identifier.scopus-author-id55955425000
person.identifier.scopus-author-id7103359012
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication910ae041-d884-4346-b282-6ffe5ee43d6f
relation.isAuthorOfPublication1c613a9f-bca3-465c-b261-8d67dfcaf6ce
relation.isAuthorOfPublicatione56bbed9-fa4b-44de-8cee-c04eaed15c14
relation.isAuthorOfPublication.latestForDiscoverye56bbed9-fa4b-44de-8cee-c04eaed15c14

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