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Structural Characterization of Microcapsules from Common Bee Pollen for the Development of Delivery Systems

2024Artigo científico Acesso aberto
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datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg15:Proteger a Vida Terrestre
datacite.subject.sdg02:Erradicar a Fome
dc.contributor.authorErtosun, Seymanur
dc.contributor.authorAylanc, Volkan
dc.contributor.authorPeixoto, Andreia F.
dc.contributor.authorSantamaria-Echart, Arantzazu
dc.contributor.authorRusso-Almeida, Paulo
dc.contributor.authorFreire, Cristina
dc.contributor.authorVilas-Boas, Miguel
dc.date.accessioned2025-03-10T10:09:37Z
dc.date.available2025-03-10T10:09:37Z
dc.date.issued2024
dc.description.abstractExine, in the form of a natural microcapsule, refers to the outermost layer of the pollen grains and is composed of a complex mixture of sporopollenin, a highly resistant polymer, which makes it durable and able to withstand harsh conditions. Distinctive features of sporopollenin have attracted interest in the encapsulation of bioactive substances. Herein, we describe the pathway to producing sporopollenin microcapsules (SMCs) by exploiting bees and trapping common bee pollen pellets, offering a simple approach to acquiring substantial amounts of pollen grains for industrial application. Palynological results showed that separating bee pollen pellets by colour could lead to almost pure products ranging from 90 to 96%, depending on the pollen species. Subsequently, a single extraction technique removed around 82– 86% of the proteinaceous content, which could cause potential allergic reactions in humans. Detailed morphological analysis by scanning electron microscope (SEM), confocal laser scanning microscopy (CLSM), atomic force microscopy (AFM), and laser diffraction particle size (LDPS) analysis proved that the purified SMCs retained their 3D micro-structures, besides being hollow and uniform micron-scale size. Fourier-transform infrared spectroscopy (FTIR) findings point out that the sporopollenin biopolymer structure of the pollen grain comprises distinct aliphatic and aromatic domains, and the purification of the SMCs resulted in the loss of nitrogen-related peaks. The hydrophobic/hydrophilic properties of the SMCs, evaluated by contact angle measurements, showed variability between pollen, depending on the specificities of their chemical structure. Simultaneous thermal analysis (STA) confirmed SMCs thermal stability up to 451 °C. Altogether, we showed that green microcapsules with various morphological properties could be produced by simply processing Castanea spp., Cistus spp., Erica spp., Olea spp, and Rubus spp, all common bee pollen pellets available in large quantities in the northeast of Portugal, but also many other countries. These microcarriers promise applicability to various fields, from pharmaceuticals to the food industry.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support by national funds FCT/MCTES to CIMO (UIDB/00690/2020 and UIDP/00690/2020), SusTEC (LA/P/0007/2021) and projects: UIDB/50006/2020, UIDB/04033/2020 and UIDP/50006/2020. Thanks to national funding, FCT for CEEC contract (2020.01614. CEECIND/CP1596/CT0007) with Andreia F. Peixoto and Ph.D. research grants for Seymanur Ertosun (2021.08361.BD) and Volkan Aylanc (2021.07764.BD). Thanks to the NextGenerationEU recovery funds, through the scope of Project BeeLand 10/C05-i03/2021.PPRRC05- i03-I-000081.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationErtosun, Seymanur; Aylanc, Volkan; Peixoto, Andreia F.; Santamaria-Echart, Arantzazu; Russo-Almeida, Paulo; Freire, Cristina; Vilas-Boas, Miguel (2024). Structural Characterization of Microcapsules from Common Bee Pollen for the Development of Delivery Systems. Journal of Polymers and the Environment. ISSN 1566-2543. 33:2, p. 1171-1184
dc.identifier.doi10.1007/s10924-024-03478-0pt_PT
dc.identifier.eissn1572-8919
dc.identifier.issn1566-2543
dc.identifier.urihttp://hdl.handle.net/10198/34337
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Nature
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationBio-based amines from renewable resources through catalytic sustainable processes (BIO2BIA)
dc.relationNatural capsules of bee pollen as tailor-made controlled delivery systems for food and cosmetic applications
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBee Pollenpt_PT
dc.subjectSporopollenin biopolymerpt_PT
dc.subjectMorphological characterizationpt_PT
dc.subjectGreen carrierspt_PT
dc.titleStructural Characterization of Microcapsules from Common Bee Pollen for the Development of Delivery Systemspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleBio-based amines from renewable resources through catalytic sustainable processes (BIO2BIA)
oaire.awardTitleNatural capsules of bee pollen as tailor-made controlled delivery systems for food and cosmetic applications
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
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oaire.citation.endPage1184
oaire.citation.issue2
oaire.citation.startPage1171
oaire.citation.titleJournal of polymers and the environment
oaire.citation.volume33
oaire.fundingStream6817 - DCRRNI ID
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person.familyNameSantamaria-Echart
person.familyNameVilas-Boas
person.givenNameArantzazu
person.givenNameMiguel
person.identifier1693134
person.identifier.ciencia-id0C17-1E1F-2621
person.identifier.ciencia-idA918-C6FF-81A4
person.identifier.orcid0000-0003-0107-7301
person.identifier.orcid0000-0002-8665-5280
person.identifier.ridI-5949-2013
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rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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