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https://hdl.handle.net/1822/47532
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Campo DC | Valor | Idioma |
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dc.contributor.author | Tavares, Tânia | por |
dc.contributor.author | Ramos, Óscar L. | por |
dc.contributor.author | Malcata, F. Xavier | por |
dc.date.accessioned | 2017-11-20T09:40:24Z | - |
dc.date.issued | 2017-12 | - |
dc.identifier.citation | Tavares, Tânia; Ramos, Óscar L.; Malcata, F. Xavier, -Lactoglobulin microparticles obtained by high intensity ultrasound as a potential delivery system for bioactive peptide concentrate. Journal of Food Science and Technology, 54(13), 4387-4396, 2017 | por |
dc.identifier.issn | 0022-1155 | por |
dc.identifier.uri | https://hdl.handle.net/1822/47532 | - |
dc.description.abstract | This work attempted to assess the effect of high intensity ultrasound (HIUS) upon development of bio-based delivery systems, from β-lactoglobulin (β-Lg) gelled microparticles, for encapsulation of a bioactive peptide concentrate (PepC). Solutions of 150 g L−1 of commercial β-Lg and 30 g L−1 PepC, at various pH values (3.0, 4.0 and 5.5), were accordingly subjected to gelation for 30 min using a dry bath kept at 80 °C. The gelled systems were then exposed to HIUS at 0–4 °C, and the effect of processing time (2.5–20.0 min) was ascertained. Laser light scattering and confocal microscopy were used to characterize the particle size distribution, prior to and immediately after HIUS treatment. Gels obtained at pH 5.5 and 4.0 were harder than those obtained at pH 3.0. Ultrasound treatment of gels produced an important reduction in particle mean diameter as sonication time elapsed. Confocal microscopy indicated that application of HIUS led to almost round and monodispersed particles, at both pH 5.5 and 4.0. The peptide encapsulation efficiency was assessed by chromatography and accompanied by assay for bioactivity, after precipitation of the encapsulated material and analysis of the soluble peptides therein. | por |
dc.description.sponsorship | Tânia Tavares and Oscar L. Ramos gratefully acknowledge Post-Doctoral grants (SFRH/BPD/89360/2012 and SFRH/BPD/80766/2011, respectively) by Fundação para a Ciência e Tecnologia (FCT, Portugal), under the supervision of author F. Xavier Malcata. Partial financial support for the research expenses was provided by CYTED Program. The authors are grateful to FCT Strategic Project PEst-OE/EQB/LA0023/2013 and Project BioEnv—Biotechnology and Bioengineering for a sustainable world, Ref. NORTE-07-0124-FEDER-000048, co-funded by Programa Operacional Regional do Norte (ON.2—O Novo Norte), QREN, FEDER; and Project POCI-01-0145-FEDER-006939—Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia—LEPABE and NORTE-01-0145-FEDER-000005—LEPABE-2-ECO-INNOVATION, funded by Fundo Europeu de Desenvolvimento Regional (FEDER), through COMPETE2020—Programa Operacional Competitividade e Internacionalização (POCI) and Programa Operacional Regional do Norte (NORTE2020), and by national funds through FCT. The authors are also indebted to Nerina Camino and Ana Pilosof, from Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, for generous and stimulating support, and for their relevant contributions to this field of research. | por |
dc.language.iso | eng | por |
dc.publisher | Springer | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F89360%2F2012/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F80766%2F2011/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/132966/PT | por |
dc.rights | restrictedAccess | por |
dc.subject | Whey protein | por |
dc.subject | Whey peptide concentrate | por |
dc.subject | Microencapsulation | por |
dc.subject | High intensity ultrasound | por |
dc.title | β-Lactoglobulin microparticles obtained by high intensity ultrasound as a potential delivery system for bioactive peptide concentrate | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.comments | CEB47023 | por |
oaire.citationStartPage | 4387 | por |
oaire.citationEndPage | 4396 | por |
oaire.citationIssue | 13 | por |
oaire.citationConferencePlace | India | - |
oaire.citationVolume | 54 | por |
dc.date.updated | 2017-11-18T16:41:40Z | - |
dc.identifier.eissn | 0975-8402 | por |
dc.identifier.doi | 10.1007/s13197-017-2912-1 | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Journal of Food Science and Technology | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
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document_47023_1.pdf Acesso restrito! | 3,1 MB | Adobe PDF | Ver/Abrir |