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Phenolic compounds extraction of Arbutus unedo L.

2020-03-01Artigo científico Acesso aberto
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dc.contributor.authorAlexandre, Agostinho M.R.C.
dc.contributor.authorMatias, Ana A.
dc.contributor.authorBronze, Maria Rosário
dc.contributor.authorCocero, Maria Jose
dc.contributor.authorMato, Rafael
dc.contributor.institutionInstituto de Tecnologia Química e Biológica António Xavier (ITQB)
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2021-05-04T22:56:36Z
dc.date.available2021-05-04T22:56:36Z
dc.date.issued2020-03-01
dc.description.abstractArbutus unedo L., commonly known as the strawberry-tree fruit, is an endemic species of the Mediterranean flora. Microwave extraction technology has been considered as a fast and "green" method for the production of extracts rich in bioactive compounds, although the energy consumption is high. To overcome this bottleneck, microwave was used as a pretreatment procedure in short time periods. This technique promotes the burst of intracellular vacuoles leading to an increase in the lixiviation of phenolic compounds. Different approaches were tested, namely a solvent-free irradiation (SFI), a solvent-assisted irradiation (SAI) and a pressurized solvent-assisted irradiation (PSAI). After irradiation, a solid-liquid extraction procedure was performed using a mixture of water and ethanol. A kinetic evaluation of the total phenolic content (TPC) was performed using the Folin-Ciocalteu method. For the total anthocyanin content, a UV-spectrophotometric method was used. HPLC-UV and LC-MS were used for TPC and identification of present compounds. Microwave irradiation led to an increase in TPC of extracts after SAI (52%) and PSAI (66%) along with a reduction in time of extraction from 30 min to less than 2 min. The anthocyanin content also increased by 66% for the SAI and PSAI extractions.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent1031949
dc.identifier.doi10.3390/pr8030298
dc.identifier.issn2227-9717
dc.identifier.otherPURE: 27994624
dc.identifier.otherPURE UUID: 70b9473d-ba99-4137-b7cb-99f2a27fe86c
dc.identifier.otherScopus: 85081975194
dc.identifier.urihttp://hdl.handle.net/10362/117035
dc.identifier.urlhttps://www.scopus.com/pages/publications/85081975194
dc.language.isoeng
dc.peerreviewedyes
dc.subjectArbutus unedo
dc.subjectMicrowave pretreatment
dc.subjectPhenolic compounds
dc.subjectProcess intensification
dc.subjectBioengineering
dc.subjectChemical Engineering (miscellaneous)
dc.subjectProcess Chemistry and Technology
dc.subjectSDG 7 - Affordable and Clean Energy
dc.titlePhenolic compounds extraction of Arbutus unedo L.en
dc.title.subtitleProcess intensification by microwave pretreatmenten
dc.typejournal article
degois.publication.issue3
degois.publication.titleProcesses
degois.publication.volume8
dspace.entity.typePublication
rcaap.rightsopenAccess

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