Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/67281
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Pereira, Ricardo Nuno Correia | por |
dc.contributor.author | Coelho, M. | por |
dc.contributor.author | Genisheva, Zlatina | por |
dc.contributor.author | Fernandes, Jean Michel | por |
dc.contributor.author | Vicente, A. A. | por |
dc.contributor.author | Pintado, Manuela E. | por |
dc.contributor.author | Teixeira, J. A. | por |
dc.date.accessioned | 2020-10-05T16:43:00Z | - |
dc.date.available | 2020-10-05T16:43:00Z | - |
dc.date.issued | 2020-11 | - |
dc.identifier.citation | Pereira, Ricardo N.; Coelho, M.; Genisheva, Zlatina; Fernandes, J. -M.; Vicente, António A.; Pintado, Manuela E.; Teixeira, José A., Using Ohmic Heating effect on grape skins as a pretreatment for anthocyanins extraction. Food and Bioproducts Processing, 124, 320-328, 2020 | por |
dc.identifier.issn | 0960-3085 | por |
dc.identifier.uri | https://hdl.handle.net/1822/67281 | - |
dc.description.abstract | This study aims to obtain aqueous extracts of valuable phytochemicals, in particular anthocyanins, from winemaking residues by using grape skins as natural electrical conductors allowing internal heat dissipation through Ohmic Heating (OH) effect. Two different electric pretreatments were evaluated: i) using mild temperatures at 40°C during 20min; ii) flash heating from 40 to 100°C in less than 20 seconds (no holding time). These pretreatments were followed by aqueous extraction in water at room temperature. Independently of the temperature applied, OH allowed to boost extraction levels increasing concentration of total phenolic compounds, as well as conductivity, soluble solids and red color intensity of the obtained extracts, as shown through principal component analysis (PCA). OH pretreatments at high-temperature short-time (HTST) due to the fast internal heating of grape skin structure allowed increase total concentration of anthocyanins from 756 to 1349g/g, with malvidin-3-O-glucoside being the main compound identified and quantified in the aqueous extracts through HPLC analysis (corresponding to about 60 % of the total). These results showed that OH bring potential to be an efficient and environmentally friendly technology towards sustainable food processes. | por |
dc.description.sponsorship | This study was supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UIDB/04469/2020 and BioTecNorte operation(NORTE-01-0145-FEDER-000004) funded by the European Regional Development Fund under the scope of Norte2020-Programa Operacional Regional do Norte. We would also like to thank the scientific collaboration under the FCT project UID/Multi/50016/2019. The author Marta Coelho would like to acknowledge FCT for your PhD grant with the reference SFRH/BD/1118842015. The authors want to thank to Adega Cooperativa de Ponte da Barca for the provided wine waste material. | por |
dc.language.iso | eng | por |
dc.publisher | Institution of Chemical Engineers (IChemE) | por |
dc.relation | UIDB/04469/2020 | por |
dc.relation | UID/Multi/50016/2019 | por |
dc.relation | SFRH/BD/1118842015 | por |
dc.rights | openAccess | por |
dc.subject | grape skins | por |
dc.subject | electric field | por |
dc.subject | internal heat | por |
dc.subject | high-temperature short-time processing | por |
dc.subject | anthocyanins | por |
dc.title | Using Ohmic Heating effect on grape skins as a pretreatment for anthocyanins extraction | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.elsevier.com/locate/issn/09603085 | por |
dc.comments | CEB53900 | por |
oaire.citationStartPage | 320 | por |
oaire.citationEndPage | 328 | por |
oaire.citationVolume | 124 | por |
dc.date.updated | 2020-10-03T10:20:49Z | - |
dc.identifier.eissn | 1744-3571 | por |
dc.identifier.doi | 10.1016/j.fbp.2020.09.009 | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | - |
dc.subject.wos | Science & Technology | por |
sdum.journal | Food and Bioproducts Processing | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_53900_1.pdf | 1,21 MB | Adobe PDF | Ver/Abrir |