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Horse chestnut (Aesculus hippocastanum L.) seed phenolic extracts obtained by ultrasound- assisted extraction

2021Conference object Open access
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dc.contributor.authorAlbiston, Carly
dc.contributor.authorAñibarro-Ortega, Mikel
dc.contributor.authorDias, Maria Inês
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorPinela, José
dc.contributor.authorBarros, Lillian
dc.date.accessioned2022-01-24T10:22:07Z
dc.date.available2022-01-24T10:22:07Z
dc.date.issued2021
dc.description.abstractHorse chestnut (Aesculus hippocastanum L.) is a deciduous tree widely cultivated in urban areas with temperate climate across the Northern hemisphere. This species is known mainly for the steroidal glycosides resulting from the secondary metabolism, among which aescin is the main active component and responsible for most of its medicinal properties[1,2]. While the bark of this tree has been used to treat dermatitis, the leaves and seeds are used due to their anti- inflammatory effects[2]. In fact, horse chestnut seed is an important raw material in the pharmaceutical industry. On the other hand, bioactive phenolic compounds such as quercetin and kaempferol glycosides can also be found in this raw material[3]. Therefore, this study was carried out to characterize the phenolic composition of the horse chestnut seed kernel, shell, and coat. The different parts of the seed were hand-separated with a knife, lyophilized, and ground to a fine powder. Hydroethanolic extracts were then obtained by ultrasound-assisted extraction, using 20% ethanol and 40 min sonication at 400 W (20 kHz frequency). The phenolic profiles were characterized by high-performance liquid chromatography coupled with diode array detector and electrospray ionization tandem mass spectrometry (HPLC-DAD- ESI/MSn). The seed kernel was particularly rich in flavonoids, among which kaempferol-O- pentoside-O-hexoside-O-hexoside and isorhamnetin-O-pentoside-O-di-hexoside were predominant compounds. The coat extract contained mostly flavan-3-ols (β-type (epi)catechin derivatives). The shell also contained flavan-3-ols and flavonoids, where (-)-epicatechin and kaempferol-O-di-deoxyhexoside were the phenolic compounds with the highest abundance in each group, respectively. In general, the coat was the seed part with the highest content of phenolic compounds, followed by the kernel. Thus, this study showed that the different parts of the inedible horse chestnut seed have different phenolic profiles in qualitative and quantitative terms. Further analyses to assess the in vitro antioxidant, anti-inflammatory, antimicrobial, and cytotoxic activities of the obtained seed extracts are underway.pt_PT
dc.description.sponsorshipTo Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES to CIMO (UIDB/00690/2020); for the M. Añibarro-Ortega PhD grant (2020.06297.BD), the contracts of M.I. Dias, J. Pinela (CEECIND/01011/2018), and L. Barros through the scientific employment program-contract; and to the FEDER-Interreg España-Portugal programme for financial support through the Project TRANSCoLAB 0612_TRANS_CO_LAB_2_P and to the European Regional Development Fund (ERDF) through the Regional Operational Program North 2020, within the scope of Project GreenHealth - Norte-01-0145-FEDER-000042.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlbiston, Carly; Añibarro-Ortega, Mikel; Dias, Maria Inês; Ferreira, Isabel C.F.R.; Pinela, José; Barros, Lillian (2021). Horse chestnut (Aesculus hippocastanum L.) seed phenolic extracts obtained by ultrasound- assisted extraction. In 5th International Symposium on Phytochemicals in Medicine and Food. Nanchang, Chinapt_PT
dc.identifier.urihttp://hdl.handle.net/10198/24862
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationMountain Research Center
dc.relationNot Available
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAesculus hippocastanum L.pt_PT
dc.titleHorse chestnut (Aesculus hippocastanum L.) seed phenolic extracts obtained by ultrasound- assisted extractionpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2018/CEECIND%2F01011%2F2018%2FCP1578%2FCT0002/PT
oaire.citation.conferencePlaceNanchang, Chinapt_PT
oaire.citation.title5th International Symposium on Phytochemicals in Medicine and Foodpt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND 2018
person.familyNameAñibarro-Ortega
person.familyNameDias
person.familyNameFerreira
person.familyNamePinela
person.familyNameBarros
person.givenNameMikel
person.givenNameMaria Inês
person.givenNameIsabel C.F.R.
person.givenNameJosé
person.givenNameLillian
person.identifier144781
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person.identifier.orcid0000-0003-4910-4882
person.identifier.orcid0000-0001-7523-1637
person.identifier.orcid0000-0002-9050-5189
person.identifier.ridM-8242-2013
person.identifier.ridE-8500-2013
person.identifier.ridB-4466-2014
person.identifier.ridJ-3600-2013
person.identifier.scopus-author-id54388787000
person.identifier.scopus-author-id36868826600
person.identifier.scopus-author-id54392272800
person.identifier.scopus-author-id35236343600
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
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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