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Flowers of Gomphrena globosa L. as an alternatve source of betacyanins: optimization of the extraction using response surface methodology

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dc.contributor.authorRoriz, Custódio Lobo
dc.contributor.authorPrieto Lage, Miguel A.
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorMorales, Patricia
dc.contributor.authorBarros, Lillian
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2016-09-21T10:03:34Z
dc.date.available2016-09-21T10:03:34Z
dc.date.issued2016
dc.description.abstractBetacyanins are betalain pigments that display a red-violet colour which have been reported to be three times stronger than the red-violet dye produced by anthocyanins [1]. The applications of betacyanins cover a wide range of matrices, mainly as additives or ingredients in the food industry, cosmetics, pharmaceuticals and livestock feed. Although, being less commonly used than anthocyanins and carotenoids, betacyanins are stable between pH 3 to 7 and suitable for colouring in low acid matrices. In addition, betacyanins have been reported to display interesting medicinal character as powerful antioxidant and chemopreventive compounds either in vitro or in vivo models [2]. Betacyanins are obtained mainly from the red beet of Beta vulgaris plant (between I 0 to 20 mg per I 00 g pulp) but alternative primary sources are needed [3]. In addition, independently of the source used, the effect of the variables that affect the extraction of betacyanins have not been properly described and quantified. Therefore, the aim of this study was to identifY and optimize the conditions that maximize betacyanins extraction using the tepals of Gomphrena globosa L. flowers as an alternative source. Assisted by the statistical technique of response surface methodology, an experimental design was developed for testing the significant explanatory variables of the extraction (time, temperature, solid-liquid ratio and ethanolwater ratio). The identification was performed using high-performance liquid chromatography coupled with a photodiode array detector and mass spectrometry with electron spray ionization (HPLC-PDAMS/ ESI) and the response was measured by the quantification of these compounds using HPLC-PDA. Afterwards, a response surface analysis was performed to evaluate the results. The major betacyanin compounds identified were gomphrenin 11 and Ill and isogomphrenin IJ and Ill. The highest total betacyanins content was obtained by using the following conditions: 45 min of extraction. time, 35•c, 35 g/L of solid-liquid ratio and 25% of ethanol. These values would not be found without optimizing the conditions of the betacyanins extraction, which moreover showed contrary trends to what it has been described in the scientific bibliography. More specifically, concerning the time and temperature variables, an increase of both values (from the common ones used in the bibliography) showed a considerable improvement on the betacyanins extraction yield without displaying any type of degradation patterns.pt_PT
dc.identifier.citationRoriz, Custódio Lobo; Prieto, M.A.; Carvalho, Ana Maria; Morales, Patricia; Barros, Lillian; Ferreira, Isabel C.F.R. (2016) – Flowers of Gomphrena globosa L. as an alternatve source of betacyanins: Optimization of the extraction using response surface methodology. In 5° Encontro Português de Jovens Químicos (PYCheM) e o 1° Encontro Europeu de Jovens Químicos (EYCHeM). Guimarãespt_PT
dc.identifier.urihttp://hdl.handle.net/10198/13272
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationProviding industry and consumers with new alternative sources of natural additives from plant origin in the classes of preservatives and colouring agents: extraction, purification, stabilization and product development
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleFlowers of Gomphrena globosa L. as an alternatve source of betacyanins: optimization of the extraction using response surface methodologypt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleProviding industry and consumers with new alternative sources of natural additives from plant origin in the classes of preservatives and colouring agents: extraction, purification, stabilization and product development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/PEst-OE%2FAGR%2FUI0690%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F107855%2F2015/PT
oaire.citation.conferencePlaceGuimarães, Portugalpt_PT
oaire.citation.title5° Encontro Português de Jovens Químicos (PYCheM) e o 1° Encontro Europeu de Jovens Químicos (EYCHeM)pt_PT
oaire.fundingStream5876
person.familyNameRoriz
person.familyNamePrieto
person.familyNameCarvalho
person.familyNameBarros
person.familyNameFerreira
person.givenNameCustódio Lobo
person.givenNameMiguel A.
person.givenNameAna Maria
person.givenNameLillian
person.givenNameIsabel C.F.R.
person.identifier107688
person.identifierID G-7399-2011
person.identifier469085
person.identifier144781
person.identifier.ciencia-id9519-D97C-6B17
person.identifier.ciencia-id221E-1E00-AB74
person.identifier.ciencia-idD31A-35AF-E2A9
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-4021-1078
person.identifier.orcid0000-0002-3513-0054
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridG-4516-2011
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id56151637600
person.identifier.scopus-author-id35937495700
person.identifier.scopus-author-id20336503900
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id36868826600
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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