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Phenolic profile and antioxidante activity of Nephelium lappaceum L. epicarp hydroethanolic extracts

2021Conference object Open access
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dc.contributor.authorAlbuquerque, Bianca R.
dc.contributor.authorDias, Maria Inês
dc.contributor.authorPereira, Carla
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorBarros, Lillian
dc.date.accessioned2022-01-31T14:43:10Z
dc.date.available2022-01-31T14:43:10Z
dc.date.issued2021
dc.description.abstractNephelium lappaceum L., popularly known as rambutan, is a tropical fruit belonging to the Sapidaceae family. It is native to Asia, but widely distributed in other tropical regions, such as Latin America, Australia, and some African countries [1,2]. This fruit is very appreciated for its exotic appearance and pleasant taste, and its commercialization and processing has been growing all over the world [1-3]. However, only a small portion of this fruit is edible/processed, with up to 67% corresponding to its inedible epicarp, which can generate a high volume of bioresidues and economic losses [2,3]. In order to propose a valorisation of rambutan epicarp as a source of bioactive molecules, the present study aimed to identify its anthocyanin and non-anthocyanin phenolic compounds by High-Performance Liquid Chromatography coupled to a diode-array detector and a mass spectrometer functioning by electrospray ionization (HPLC-DAD/ESI-MS), and determine the antioxidant activity of its hydroethanolic extract by two in vitro assays: thiobarbituric acid reactive substances assay (TBARS) and oxidative haemolysis inhibition assay (OxHLIA). The rambutan epicarp extract presented seven phenolic compounds, among which two anthocyanin compounds (O-glycosylated delphinidin derivatives) and five non-anthocyanin compounds (ellagitannin derivatives), in a total concentration of 11.57±0.08 and 31.6±0.5 mg/g of extract, respectively. Delphinidin isomers, geraniin isomers, and ellagic acid were the compounds detected in higher concentrations. In terms of antioxidant activity, rambutan extract was able to inhibit the lipid peroxidation in a low concentration (EC50 value of 2.79 ± 0.03 μg/mL), and a moderate amount of extract was required to exert oxidative haemolysis inhibition (EC50 value of 72 ± 2 μg/mL). The results obtained allow to conclude that rambutan epicarp could be an interesting matrix to be used as source of bioactive compounds for further application in food/pharmaceutical fields.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES to CIMO (UIDB/00690/2020) and B.R. Albuquerque research grant (SFRH/BD/136370/2018). National funding by FCT, P.I., through the institutional scientific employment program-contract for M.I.D., C.P., and L.B. contracts. To FEDER-Interreg España-Portugal programme for financial support through the project TRANSCoLAB 0612_TRANS_CO_LAB_2_PT 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 and the Project Mobilizador Norte-01-0247-FEDER-024479: ValorNatural®.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlbuquerque, Bianca R.; Dias, Maria Inês; Pereira, Carla; Oliveira, Beatriz; Ferreira, Isabel C.F.R.; Barros, Lillian (2021). Phenolic profile and antioxidante activity of Nephelium lappaceum L. epicarp hydroethanolic extracts. In XV Encontro de Química dos Alimentos. Funchal. ISBN 978-989-8805-68-3pt_PT
dc.identifier.issn978-989-8805-68-3
dc.identifier.urihttp://hdl.handle.net/10198/24971
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationMountain Research Center
dc.relationNatural colorants based on anthocyanins obtained from bioresidues
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectNephelium lappaceum L.pt_PT
dc.subjectTropical fruitpt_PT
dc.titlePhenolic profile and antioxidante activity of Nephelium lappaceum L. epicarp hydroethanolic extractspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleNatural colorants based on anthocyanins obtained from bioresidues
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F136370%2F2018/PT
oaire.citation.conferencePlaceMadeira, Portugalpt_PT
oaire.citation.titleXV Encontro de química dos alimentospt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAlbuquerque
person.familyNameDias
person.familyNamePereira
person.familyNameFerreira
person.familyNameBarros
person.givenNameBianca R.
person.givenNameMaria Inês
person.givenNameCarla
person.givenNameIsabel C.F.R.
person.givenNameLillian
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person.identifier.scopus-author-id57192311941
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person.identifier.scopus-author-id55627876424
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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
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