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Optimization and comparison of maceration and ultrassound assisted extraction systems for the production of a colorant extract from Hibiscus sabdariffa L. flowers

2018Conference object Open access
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dc.contributor.authorJabeur, Inès
dc.contributor.authorPereira, Eliana
dc.contributor.authorPrieto Lage, Miguel A.
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorBarros, Lillian
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-10-17T15:37:03Z
dc.date.available2018-10-17T15:37:03Z
dc.date.issued2018
dc.description.abstractHibiscus sabdariffa L. is an herbaceous medicinal plantused as infusion for the treatment of several disorders, namely, fever and high blood pressure, gastrointestinal and hepatic diseases. In addition to those health benefits, the calyces area potential source of natural pigments, due to its high content in anthocyanins. This work aimed to optimize the experimental conditions of anthocyanins’extraction from dried calyces of H. sabdariffa, comparing two methodologies, maceration and ultrasound assisted extraction, in order to develop a natural colorant. To obtain the conditions that maximize anthocyanins’ extraction, a response surface methodology (RSM) was applied using the circumscribed central composite design of three variables with five levels. Time, temperature and ethanol - water proportion - in the case of maceration, were the relevant independent variables, while for ultrasound assisted extraction, the ultrasonic power was used instead of temperature which was kept constant. Two anthocyanin compounds were identified by HPLC-DAD-ESI/MS: delphinidin3-sambubioside and cyanidin-3-sambubioside. The responses used as criteria were the quantification of the identified anthocyanins and the extraction yield of the final residue. Ultrasound assisted extraction proved to be the most effective method: 43 min, 390 W and 46 % of ethanol. At these optimal conditions, the extraction yield was 61.2%, with a total anthocyanins’ content of 23.1 mg/g dried plant, and 47.5 mg/g extract. Additionally, the response values were slightly improved by studying the solid/liquid ratio effect using the optimal conditions in dose-response format (5 to 200 g/L), showing continuously decreasing values as the solid/liquid ratio increases. Overall, the obtained results showed the possibility of using H. sabdariffa flowers as a source of anthocyanin compounds for industrial applications.pt_PT
dc.description.sponsorshipEuropean Union Regional Development Fund: Programme Portugal-NORTE2020 (Project NORTE-01-0145-FEDER-023289: DeCodE; Project NORTE-01-0247-FEDER- 024479: ValorNatural®); Programmme INTERREG V-A Espanha-Portugal (POCTEP) 2014- 2020 (Project 0377_Iberphenol_6_E). And Xunta de Galicia, Spain, for M.A. Prieto grant.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationJabeur, Inès; Pereira, Eliana; Prieto, M.A.; Antonio, Amilcar L.; Barros, Lillian; Ferreira, Isabel C.F.R. (2018). Optimization and comparison of maceration and ultrassound assisted extraction systems for the production of a colorant extract from Hibiscus sabdariffa L. Flowers. In IX International Scientific Agriculture Symposium.AGROSYM 2018. Jahorina, Bósnia-Herzegovina. ISBN 978-99976-718-5-1pt_PT
dc.identifier.isbn978-99976-718-5-1
dc.identifier.urihttp://hdl.handle.net/10198/18088
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHibiscus sabdariffa L. flowerspt_PT
dc.subjectAnthocyaninspt_PT
dc.subjectHeat and ultrasound assisted extractionspt_PT
dc.subjectResponse surface methodologypt_PT
dc.titleOptimization and comparison of maceration and ultrassound assisted extraction systems for the production of a colorant extract from Hibiscus sabdariffa L. flowerspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceBósnia-Herzegovinapt_PT
oaire.citation.endPage1177pt_PT
oaire.citation.startPage1177pt_PT
oaire.citation.titleIX International Scientific Agriculture Symposium “AGROSYM 2018”pt_PT
person.familyNameJabeur
person.familyNamePereira
person.familyNamePrieto
person.familyNameAntonio
person.familyNameBarros
person.familyNameFerreira
person.givenNameInès
person.givenNameEliana
person.givenNameMiguel A.
person.givenNameAmilcar
person.givenNameLillian
person.givenNameIsabel C.F.R.
person.identifier107688
person.identifier469085
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person.identifier.orcid0000-0002-7485-3554
person.identifier.orcid0000-0003-2854-6745
person.identifier.orcid0000-0002-3513-0054
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridQ-8017-2018
person.identifier.ridG-4516-2011
person.identifier.ridJ-1960-2014
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id55938912300
person.identifier.scopus-author-id35937495700
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id36868826600
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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