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Bioconversion of oleuropein to hydroxytyrosol by lactic acid bacteria

2012Journal article Restricted access
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dc.contributor.authorSantos, M. M.
dc.contributor.authorPiccirillo, C.
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorKalogerakis, N.
dc.contributor.authorPintado, M. E.
dc.date.accessioned2013-01-28T14:54:35Z
dc.date.available2013-01-28T14:54:35Z
dc.date.issued2012
dc.description.abstractThe aim of this work is to study the conversion of oleuropein—a polyphenol present in olives and olive oil by-products—into hydroxytyrosol, a polyphenol with antioxidant and antibacterial properties. The hydrolysis reaction is performed by lactic acid bacteria. Six bacterial strains (Lactobacillus plantarum 6907, Lactobacillus paracasei 9192, Lactobacillus casei, Bifidobacterium lactis BO, Enterococcus faecium 32, Lactobacillus LAFTI 10) were tested under aerobic and anaerobic conditions. The oleuropein degradation and hydroxytyrosol formation were monitored by HPLC. Results showed that oleuropein could be successfully converted into hydroxytyrosol. The most effective strain was Lactobacillus plantarum 6907, with a reaction yield of hydroxytyrosol of about 30 %. Different reaction mechanisms were observed for different microorganisms; a different yield was observed for Lactobacillus paracasei 9192 under aerobic or anaerobic conditions and an intermediate metabolite (oleuropein aglycone) was detected for Lactobacillus paracasei 9192 and Lactobacillus plantarum 6907 only. This study could have significant applications, as this reaction can be used to increase the value of olive oil by-products and/or to improve the taste of unripe olives.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationSANTOS, M. M. ...[et al.] - Bioconversion of oleuropein to hydroxytyrosol by lactic acid bacteria. World Journal of Microbiology & Biotechnology. ISSN 1573-0972. Vol. 28, n.º 6 (2012), p. 2435-2440por
dc.identifier.doi10.1007/s11274-012-1036-z
dc.identifier.eissn1573-0972
dc.identifier.issn0959-3993
dc.identifier.urihttp://hdl.handle.net/10400.14/10009
dc.identifier.wosWOS:000304135200016
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringerpor
dc.relationInsolex MRT-CT-2006-036053
dc.subjectOleuropeinpor
dc.subjectHydroxytyrosolpor
dc.subjectLactic acidpor
dc.subjectb-Glucosidasepor
dc.subjectEnzymatic hydrolysispor
dc.subjectOlivespor
dc.titleBioconversion of oleuropein to hydroxytyrosol by lactic acid bacteriapor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue6
oaire.citation.titleWorld Journal of Microbiology and Biotechnology
oaire.citation.volume28
person.familyNamePiccirillo
person.familyNameCastro
person.familyNameKALOGERAKIS
person.familyNamePintado
person.givenNameClara
person.givenNamePaula
person.givenNameNicolas
person.givenNameMaria Manuela
person.identifier962551
person.identifier2013444
person.identifier90000
person.identifier456608
person.identifier.ciencia-id391B-75ED-6983
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.orcid0000-0002-6339-716X
person.identifier.orcid0000-0001-8841-6606
person.identifier.orcid0000-0001-7033-0302
person.identifier.orcid0000-0002-0760-3184
person.identifier.ridN-8206-2013
person.identifier.ridM-8241-2013
person.identifier.ridC-9254-2009
person.identifier.ridF-5696-2013
person.identifier.scopus-author-id7004621626
person.identifier.scopus-author-id7102781782
person.identifier.scopus-author-id36868874600
person.identifier.scopus-author-id7004483898
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublicationba387c7d-27c9-4016-895c-b35597e91ebc
relation.isAuthorOfPublication.latestForDiscoveryba387c7d-27c9-4016-895c-b35597e91ebc

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