Simple item page
 

Simultaneous extraction of tocochromanols and flavan-3-ols from the grape seeds: Analytical and industrial aspects

cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid0000-0003-4113-1595
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcide5b3bdcc-fb9a-4a83-9a35-c24812d69ccd
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enGrape processing generates large amounts of by-products, including seeds rich in hydrophilic and lipophilic antioxidants. This study demonstrates, for the first time, that subjecting grape seeds to a single ultrasound-assisted extraction (UAE) with aqueous ethanolic solutions yields both flavan-3-ols and tocochromanols in the final extract. Notably, the water content in ethanol significantly influences the extractability of tocochromanols more than flavan-3-ols. Solid-to-solvent ratios of 1:50 to 1:2 were tested for both analytical and industrial applications. A sustainable analytical approach for recovering flavan-3-ols and tocochromanols using 60% and 96.4% ethanol extractions was validated and employed to profile nineteen genotypes of lesser-studied interspecific grape crosses (Vitis spp.). Different genotypes showed a wide range of concentrations of tocopherols (1.6–6.3 mg/100 g), tocotrienols (1.0–17.4 mg/100 g), and flavan-3-ols (861–9994 mg/100 g). This indicated that the genetic background and maturity of the plant material are crucial factors from an industrial perspective due to the initial concentration of bioactive compounds. Finally, the study also discussed the fundamental aspects of hydrophobic antioxidant extractability from the lipid matrix with aqueous ethanol solutions and the limitations of the workflow, such as the non-extractable tocochromanols and their esters and the losses of these lipophilic antioxidants during extraction.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Chemii
dc.contributor.authorGórnaś, Paweł
dc.contributor.authorMišina, Inga
dc.contributor.authorWaśkiewicz, Agnieszka
dc.contributor.authorPerkons, Ingus
dc.contributor.authorPugajeva, Iveta
dc.contributor.authorSegliņa, Dalija
dc.date.accessioned2025-10-08T12:35:32Z
dc.date.available2025-10-08T12:35:32Z
dc.date.issued2025
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if9,8
dc.description.number1 January 2025
dc.description.points200
dc.description.volume462
dc.identifier.doi10.1016/j.foodchem.2024.140913
dc.identifier.eissn1873-7072
dc.identifier.issn0308-8146
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/5298
dc.languageen
dc.relation.ispartofFood Chemistry
dc.relation.pagesart. 140913
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enVitaceae
dc.subject.enco-extraction
dc.subject.ensustainable approach
dc.subject.enaqueous ethanol solutions
dc.subject.entocotrienols
dc.subject.enextractability
dc.subject.enphytochemicals
dc.titleSimultaneous extraction of tocochromanols and flavan-3-ols from the grape seeds: Analytical and industrial aspects
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.volume462