Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/9924
DC FieldValueLanguage
dc.contributor.authorGalanakis, Charis M.-
dc.contributor.authorMarkouli, Eleftheria-
dc.contributor.authorGekas, Vassilis-
dc.date.accessioned2017-02-24T08:41:50Z-
dc.date.available2017-02-24T08:41:50Z-
dc.date.issued2013-04-
dc.identifier.citationSeparation and Purification Technology, 2013, vol. 107, pp. 245-251en_US
dc.identifier.issn13835866-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/9924-
dc.description.abstractThe purpose of the current study is to investigate the possibility of utilizing ultrafiltration (UF) for the fractionation of phenolic compounds recovered from winery sludge (WS) and their separation from other co-extracted components. Thereby, two hydro-ethanolic extracts (a diluted and a concentrated) were prepared, using WS as an initial material, and assayed in a cross-flow apparatus against three membrane types (100 kDa- and 20 kDa-polysulfone, 1 kDa-fluoropolymer). Monitoring of the process was carried out by determining performance parameters and retention coefficients of pectin, sugars, phenolic and anthocyanins classes. Results indicated that solutes retention was affected mainly by severe fouling phenomena due to polar solutes adsorption on membrane surface instead of size exclusion. Indeed, polysulfone membranes were not able to fractionate phenolic classes except for the separation obtained between polymeric and monomeric anthocyanins. Both membranes and especially the one of 20 kDa retained high percentages (i.e. >60%) of polar solutes (phenolic compounds and sugars), whereas the one of 100 kDa allowed their separation from pectin and hydrolyzed derivatives. As far as polarity is concerned, fluoropolymer membrane separated successfully hydroxycinnamic acid derivatives from anthocyanins and flavonols in the diluted and concentrated extract, respectively, as acids possessed almost 2-fold higher retention coefficients compared to the other assayed classes.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofSeparation and Purification Technologyen_US
dc.rights© Elsevieren_US
dc.subjectAnthocyaninsen_US
dc.subjectUltrafiltrationen_US
dc.subjectFlavonolsen_US
dc.subjectHydroxycinnamic acidsen_US
dc.subjectO-Diphenolsen_US
dc.subjectTanninsen_US
dc.titleRecovery and fractionation of different phenolic classes from winery sludge using ultrafiltrationen_US
dc.typeArticleen_US
dc.collaborationChemical Analytical Laboratories “Galanakis”en_US
dc.collaborationCyprus University of Technologyen_US
dc.subject.categoryAgricultural Biotechnologyen_US
dc.journalsSubscriptionen_US
dc.countryCyprusen_US
dc.countryGreeceen_US
dc.subject.fieldAgricultural Sciencesen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1016/j.seppur.2013.01.034en_US
dc.relation.volume107en_US
cut.common.academicyear2012-2013en_US
dc.identifier.spage245en_US
dc.identifier.epage251en_US
item.fulltextNo Fulltext-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.openairetypearticle-
item.languageiso639-1en-
crisitem.author.deptDepartment of Agricultural Sciences, Biotechnology and Food Science-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0003-3502-2210-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
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