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Microencapsulatin of thyme oil by coacervation

2009Journal article Restricted access
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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.accessioned2010-01-23T17:11:16Z
dc.date.available2010-01-23T17:11:16Z
dc.date.issued2009
dc.description.abstractThe objective of this work is to develop a novel coacervation process to produce microcapsules of polylactide (PLA) to encapsulate thyme oil that will be used in cosmetics. The novelty of this approach consists of dissolving PLA in dimethylformamide (DMF) which is a good solvent for PLA but in addition has high solubility in water. Upon contact with water, the homogeneous solution of PLA in DMF promotes the precipitation of PLA around the thyme oil core. The produced microcapsules have bimodal particle size distributions in volume with a mean particle size of 40 mm. Microcapsules analysis by microscopy have confirmed the spherical shape, the rough surface and allowed the estimation of the wall thickness around 5 mm. Quantification of the encapsulated thyme oil was performed by gas chromatography and allowed to evaluate the quality of the encapsulated oil and pointed out for a preferential encapsulation of thyme oil apolar compounds.pt
dc.description.sponsorshipGrant (FEUP/nº 424329) from Laboratory of Separation and Reaction Engineering (LSRE)pt
dc.identifier.citationMartins, I.M.; Rodrigues, S.N.; Barreiro, M.F.; Rodrigues, A.E. (2009). Microencapsulatin of thyme oil by coacervation. Journal of Microencapsulation. ISSN 1464-5246. 26:8 p.667-675pt
dc.identifier.issn1464-5246
dc.identifier.urihttp://hdl.handle.net/10198/1414
dc.language.isoengpt
dc.publisherInforma Healthcarept
dc.relation.publisherversionhttp://www.informaworld.com/smpp/title~db=all~content=t713723933pt
dc.subjectMicrocapsulespt
dc.subjectCoavervationpt
dc.subjectPLApt
dc.subjectThyme oilpt
dc.titleMicroencapsulatin of thyme oil by coacervationpt
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage675pt
oaire.citation.startPage667pt
oaire.citation.titleJournal of Microencapsulationpt
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
rcaap.rightsrestrictedAccesspt
rcaap.typearticlept
relation.isAuthorOfPublication0391987c-ba90-488b-839a-153447ce1f0f
relation.isAuthorOfPublication.latestForDiscovery0391987c-ba90-488b-839a-153447ce1f0f

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