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Development of a natural colouring agent based on betacyanins from plant origin

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dc.contributor.authorRoriz, Custódio Lobo
dc.contributor.authorBarros, Lillian
dc.contributor.authorPrieto Lage, Miguel A.
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorMorales, Patricia
dc.contributor.authorBarreiro, M.F.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2017-01-13T11:01:54Z
dc.date.available2017-01-13T11:01:54Z
dc.date.issued2016
dc.description.abstractA current worldwide trend of research is the search for alternative natural sources of colorants to avoid the unsafe effects caused by the synthetic counterparts. Betacyanins, which are betalain pigments displaying a red‐violet colour, have been reported to be three fold stronger than the yellow‐orange dye produced by anthocyanins. Although being less commonly used than anthocyanins and carotenoids, betacyanin applications cover a wide range of matrices, where they are mainly used as additives or supplements in the food, cosmetics, pharmaceuticals and livestock feed industries. Betacyanins are obtained mainly from the red beet, Beta vulgaris L. (between 10 to 20 mg per 100 g of fresh pulp), but alternative primary sources are needed. The floral parts of Gomphrena globosa L. represent a potential source of betacyanins. In this context, the present study aims to evaluate: 1) a process for the selection and separation of pigmented floral bracts and bracteoles (~4 % of the dried plant material); 2) the identification of the major betacyanin compounds (gomphrenin II and III, and isogomphrenin II and III); 3) the most appropriate extraction procedures (from maceration, microwave and ultrasound assisted techniques) together with the optimal conditions that maximize betacyanin extraction (time, temperature, solidliquid ratio and ethanol‐water ratio); and 4) shelf life and colour stability of the obtained natural agent. The responses were assessed by the quantification of betacyanins by high‐performance liquid chromatography coupled with a photodiode array detector and mass spectrometry with electron spray ionization. In addition, results clarified some contradictory trends described in the literature concerning the time and temperature variables, finding a considerable improvement on the betacyanins yield (higher than that typically found for Beta vulgaris), without displaying any type of degradation patterns.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRoriz, Custódio Lobo; Barros, Lillian; Lage, Miguel A. Prieto; Carvalho, Ana Maria; Morales, Patricia; Barreiro, M.F.; Ferreira, Isabel C.F.R. (2016). Development of a natural colouring agent based on betacyanins from plant origin. In I International Conference on Research for Sustainable Development in Mountain Regions: Book of Abstracts. Bragança. ISBN 978‐972‐745‐214‐9pt_PT
dc.identifier.isbn978‐972‐745‐214‐9
dc.identifier.urihttp://hdl.handle.net/10198/13763
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.titleDevelopment of a natural colouring agent based on betacyanins from plant originpt_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//SFRH%2FBPD%2F107855%2F2015/PT
oaire.citation.conferencePlaceBragançapt_PT
oaire.citation.titleI International Conference on Research for Sustainable Development in Mountain Regions 5‐7 October 2016, Bragança, Portugalpt_PT
person.familyNameRoriz
person.familyNameBarros
person.familyNamePrieto
person.familyNameCarvalho
person.familyNameBarreiro
person.familyNameFerreira
person.givenNameCustódio Lobo
person.givenNameLillian
person.givenNameMiguel A.
person.givenNameAna Maria
person.givenNameFilomena
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier107688
person.identifierID G-7399-2011
person.identifier144781
person.identifier.ciencia-id9519-D97C-6B17
person.identifier.ciencia-id9616-35CB-D001
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person.identifier.ciencia-id3418-47D5-5746
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-4021-1078
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0002-3513-0054
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0002-6844-333X
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-3600-2013
person.identifier.ridG-4516-2011
person.identifier.ridL-9802-2014
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id56151637600
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id35937495700
person.identifier.scopus-author-id20336503900
person.identifier.scopus-author-id57188719717
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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