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Evaluation of tropane alkaloids in teas and herbal infusions: effect of brewing time and temperature on atropine and scopolamine content

2023-05-27Journal article Open access
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datacite.subject.fosCiências Agrárias::Biotecnologia Agrária e Alimentar
datacite.subject.fosCiências Naturais::Ciências Químicas
datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
dc.contributor.authorGonzález-Gómez, Lorena
dc.contributor.authorMorante-Zarcero, Sonia
dc.contributor.authorPereira, Jorge A. M.
dc.contributor.authorCâmara, José S.
dc.contributor.authorSierra, Isabel
dc.contributor.authorAugusto Machado Pereira, Jorge
dc.contributor.authorCâmara, José
dc.date.accessioned2025-06-17T14:25:26Z
dc.date.available2025-06-17T14:25:26Z
dc.date.issued2023-05-27
dc.description.abstract<jats:p>Atropine and scopolamine belong to the tropane alkaloid (TA) family of natural toxins. They can contaminate teas and herbal teas and appear in infusions. Therefore, this study focused on analyzing atropine and scopolamine in 33 samples of tea and herbal tea infusions purchased in Spain and Portugal to determine the presence of these compounds in infusions brewed at 97 °C for 5 min. A rapid microextraction technique (µSPEed®) followed by high-performance liquid chromatography–tandem mass spectrometry (HPLC–MS/MS) was used to analyze the selected TAs. The results showed that 64% of the analyzed samples were contaminated by one or both toxins. White and green teas were generally more contaminated than black and other herbal teas. Of the 21 contaminated samples, 15 had concentrations above the maximum limit for liquid herbal infusions (0.2 ng/mL) set by Commission Regulation (EU) 2021/1408. In addition, the effects of heating conditions (time and temperature) on atropine and scopolamine standards and naturally contaminated samples of white, green, and black teas were evaluated. The results showed that at the concentrations studied (0.2 and 4 ng/mL), there was no degradation in the standard solutions. Brewing with boiling water (decoction) for 5 and 10 min allowed for higher extraction of TAs from dry tea to infusion water.</jats:p>eng
dc.identifier.citationGonzález-Gómez, L.; Morante-Zarcero, S.; Pereira, J.A.M.; Câmara, J.S.; Sierra, I. Evaluation of Tropane Alkaloids in Teas and Herbal Infusions: Effect of Brewing Time and Temperature on Atropine and Scopolamine Content. Toxins 2023, 15, 362. https://doi.org/10.3390/ toxins15060362
dc.identifier.doi10.3390/toxins15060362
dc.identifier.issn2072-6651
dc.identifier.urihttp://hdl.handle.net/10400.13/7311
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationMadeira Chemistry Research Centre
dc.relationMadeira Chemistry Research Centre
dc.relation.ispartofToxins
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAtropine
dc.subjectScopolamine
dc.subjectTropane alkaloids
dc.subjectµSPEed®
dc.subjectHPLC–MS/MS
dc.subjectTeas/herbal teas
dc.subjectInfusions
dc.subjectBrewing conditions
dc.subject.
dc.subjectCentro de Química da Madeira
dc.subjectFaculdade de Ciências Exatas e da Engenharia
dc.titleEvaluation of tropane alkaloids in teas and herbal infusions: effect of brewing time and temperature on atropine and scopolamine contenteng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMadeira Chemistry Research Centre
oaire.awardTitleMadeira Chemistry Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00674%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00674%2F2020/PT
oaire.citation.issue6
oaire.citation.titleToxins
oaire.citation.volume15
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameAugusto Machado Pereira
person.familyNameCâmara
person.givenNameJorge
person.givenNameJosé
person.identifierG-3003-2013
person.identifier.ciencia-idEC12-EE8F-50E8
person.identifier.ciencia-id481C-08CE-90E5
person.identifier.orcid0000-0003-0316-5348
person.identifier.orcid0000-0003-1965-3151
person.identifier.scopus-author-id10140393000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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relation.isAuthorOfPublicatione10d78be-e547-4d25-92b5-06a997ed78da
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