Simple item page
 

Residues of St. John’s Wort (Hypericum perforatum) Tea Infusions/Water Extracts as a Valuable Source of Tocotrienols: An Extraction Study

cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid0000-0002-3681-153X
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-orcid5d8013d7-489f-4858-b60d-ae1f299fa0a1
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.enHypericum perforatum L., commonly known as St. John’s wort, is a widely distributed herbaceous plant utilized in traditional and phytomedicinal applications, particularly for its hydrophilic bioactive compounds. It is often used for treating early depressive states. In this study, we focused on reporting the tocotrienols—lipophilic phytochemicals with health-promoting properties—in St. John’s wort. H. perforatum flowerheads predominantly contained tocotrienols compared with tocopherols (54 and 30 mg/100 g dry weight, respectively). The major tocotrienols (T3) were δ-T3 and α-T3 (34.0 and 17.6 mg/100 g dry weight, respectively). Tocopherols and tocotrienols are lipophilic phytochemicals that cannot be present in St. John’s wort water extracts (tea infusions), but they can be recovered from the remaining residues of H. perforatum tea infusions by using hydroethanolic solutions. A 50.0% (v/v) hydroethanolic solution was not effective in the recovery of tocochromanols. The greatest increase in the extractability of tocochromanols was observed for 70.0–80.0% (v/v) hydroethanolic extracts, while increasing the ethanol concentration from 90.0% to 96.2% (v/v) only slightly improved extractability (not statistically significant). For each ethanol concentration, the recovery was proportionally higher for tocotrienols than for tocopherols. Residues of H. perforatum tea infusions can be proposed as valuable by-products rich in tocotrienols.
dc.affiliationWydział Nauk o Żywności i Żywieniu
dc.affiliation.instituteKatedra Biochemii i Analizy Żywności
dc.contributor.authorMišina, Inga
dc.contributor.authorPerkons, Ingus
dc.contributor.authorSiger, Aleksander
dc.contributor.authorSoliven, Arianne
dc.contributor.authorGórnaś, Paweł
dc.date.access2025-03-28
dc.date.accessioned2025-05-15T07:39:13Z
dc.date.available2025-05-15T07:39:13Z
dc.date.copyright2025-02-15
dc.date.issued2025
dc.description.abstract<jats:p>Hypericum perforatum L., commonly known as St. John’s wort, is a widely distributed herbaceous plant utilized in traditional and phytomedicinal applications, particularly for its hydrophilic bioactive compounds. It is often used for treating early depressive states. In this study, we focused on reporting the tocotrienols—lipophilic phytochemicals with health-promoting properties—in St. John’s wort. H. perforatum flowerheads predominantly contained tocotrienols compared with tocopherols (54 and 30 mg/100 g dry weight, respectively). The major tocotrienols (T3) were δ-T3 and α-T3 (34.0 and 17.6 mg/100 g dry weight, respectively). Tocopherols and tocotrienols are lipophilic phytochemicals that cannot be present in St. John’s wort water extracts (tea infusions), but they can be recovered from the remaining residues of H. perforatum tea infusions by using hydroethanolic solutions. A 50.0% (v/v) hydroethanolic solution was not effective in the recovery of tocochromanols. The greatest increase in the extractability of tocochromanols was observed for 70.0–80.0% (v/v) hydroethanolic extracts, while increasing the ethanol concentration from 90.0% to 96.2% (v/v) only slightly improved extractability (not statistically significant). For each ethanol concentration, the recovery was proportionally higher for tocotrienols than for tocopherols. Residues of H. perforatum tea infusions can be proposed as valuable by-products rich in tocotrienols.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if2,5
dc.description.number4
dc.description.points100
dc.description.versionfinal_published
dc.description.volume15
dc.identifier.doi10.3390/app15042047
dc.identifier.issn2076-3417
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/2783
dc.identifier.weblinkhttps://www.mdpi.com/2076-3417/15/4/2047
dc.languageen
dc.relation.ispartofApplied Sciences
dc.relation.pagesart. 2047
dc.rightsCC-BY
dc.sciencecloudsend
dc.share.typeOPEN_JOURNAL
dc.subject.enherb
dc.subject.enby-product
dc.subject.enphytomedicine
dc.subject.enbioactive lipophilic phytochemicals
dc.subject.entocols
dc.titleResidues of St. John’s Wort (Hypericum perforatum) Tea Infusions/Water Extracts as a Valuable Source of Tocotrienols: An Extraction Study
dc.title.volumeSpecial Issue Biological Activities of Plant Extracts and Their Applications
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue4
oaire.citation.volume15