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Polylactide-based thyme oil microcapsules production: evaluation of surfactants

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dc.contributor.authorMartins, Isabel M.
dc.contributor.authorRodrigues, Sofia Nogueira
dc.contributor.authorBarreiro, M.F.
dc.contributor.authorRodrigues, Alírio
dc.date.accessioned2011-01-20T10:30:50Z
dc.date.available2011-01-20T10:30:50Z
dc.date.issued2011
dc.description.abstractThe objective of this work is to prepare microcapsules of polylactide-containing thyme oil by coacervation using a variety of nonionic surfactants with different hydrophilic-lipophilic balance (HLB) values and evaluate the encapsulation efficiency of polar and apolar compounds of oil. Thus, Tween 20, Tween 80, Tergitol 15-S-9, and a combination of Tergitol 15-S-9 with Span 85 have been used. The HLB value was comprised between 11 and 16.5. For all the studied cases, microcapsules are spherical in shape and have bimodal particle size distribution with mean size between 30 and 40 μm. The amount of encapsulated thyme oil reaches a maximum of 65% for Tergitol 15-S-9, a polyglycol ether surfactant with a HLB value of 13.3. The results confirm the dependence of the encapsulation efficiency as result of the hydrophobic properties of the surfactants. Moreover, it was confirmed a preferential encapsulation of apolar compounds of thyme oil in detriment of polar ones.por
dc.description.sponsorshipFCT grant - SFRH/BD/43215/2008por
dc.identifier.citationMartins, I.M.; Rodrigues, S.N.; Barreiro, M.F.; Rodrigues, A.E. (2011). Polylactide-based thyme oil microcapsules production: evaluation of surfactants. Ind. Eng. Chem. Res. Vol. 50, No. 2, p. 898 - 904.por
dc.identifier.doi10.1021/ie101815f
dc.identifier.eissn1520-5045
dc.identifier.issn0888-5885
dc.identifier.urihttp://hdl.handle.net/10198/3153
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.relationMICROENCAPSULATION OF THYME OIL BY COACERVATION
dc.subjectPLApor
dc.subjectThyme oilpor
dc.subjectMicroencapsulationpor
dc.subjectSurfactantspor
dc.titlePolylactide-based thyme oil microcapsules production: evaluation of surfactantspor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMICROENCAPSULATION OF THYME OIL BY COACERVATION
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F43215%2F2008/PT
oaire.citation.endPage904por
oaire.citation.issue50por
oaire.citation.startPage898por
oaire.citation.titleInd. Eng. Chem. Res.por
person.familyNameBarreiro
person.givenNameFilomena
person.identifier.ciencia-id3418-47D5-5746
person.identifier.orcid0000-0002-6844-333X
person.identifier.ridL-9802-2014
person.identifier.scopus-author-id57188719717
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication0391987c-ba90-488b-839a-153447ce1f0f
relation.isAuthorOfPublication.latestForDiscovery0391987c-ba90-488b-839a-153447ce1f0f
relation.isProjectOfPublication98630ada-6540-4930-801a-1390d01aa7e9
relation.isProjectOfPublication.latestForDiscovery98630ada-6540-4930-801a-1390d01aa7e9

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