Repository logo
 
Publication

Amaranthus caudatus L. as a source of betacyanins with coloring and antimicrobial properties.

2018Conference object Open access
Simple item page
dc.contributor.authorRoriz, Custódio Lobo
dc.contributor.authorAlves, Maria José
dc.contributor.authorMorales, Patricia
dc.contributor.authorBarros, Lillian
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-10-29T10:39:27Z
dc.date.available2018-10-29T10:39:27Z
dc.date.issued2018
dc.description.abstractAmaranthus caudatus L. is a plant belonging to the Amaranthaceae family, and is a very interesting crop, since it resists drought, heat, and pests, and adapts readily to new environments. The visual appearance of this plant is a bright red-violet, being betacyanins the compounds responsible for the color, and several bioactivities. Therefore, and despite being considered a good source of nutrients with high quality proteins, vitamins, minerals and bioactive molecules, such as phenolic compounds, A. caudatus can also be commercially exploited as a source of natural colorants. In the last decade, and due to the growing demand of consumers, natural matrices have been used to search natural colorant alternatives, in order to replace the artificial counterparts, which have been revealed some toxic effects. Betacyanins are natural colorants and have been used in the food industry, not only because of the high colouring power, but also due to recognized bioactive properties, such as antioxidant and antimicrobial, among others. Thus, the objective of this work was to obtain an extract rich in betacyanins to be used as food coloring agents, offering an alternative source of these coloring compounds, but at the same time conferring bioactive properties. A dynamic maceration extraction was carried out, being the extracts characterized by HPLC-DAD-ESI/MS regarding betacyanins’ composition. The antibacterial activity was evaluated against a panel of four Gram-positive and five Gram-negative bacteria, and the absence of cytotoxicity was confirmed in a porcine liver primary culture. By the chromatographic analysis it was possible to identify four compounds, being amaranthine (171 ± 1 mg/g extract) and isomaranthine (38 ± 1 mg/g) the two major compounds, and betanin (1.6 ± 0.1 mg/g) and isobetanin (1.3 ± 0.1 mg/g) the minor compounds. The extract presented minimum growth inhibitory concentrations (MICs) ranging from 20-10 mg/mL, with no cytotoxicity. After such promising results, this plant can be a viable alternative to obtain natural colorant ingredients.pt_PT
dc.description.sponsorshipTo the Foundation for Science and Technology and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2013); C. Lobo Roriz (SFRH/BD/117995/2016) grant and L. Barros contract. This work is funded by the European Regional Development Fund (ERDF) through the Regional Operational Program North 2020, within the scope of Project NORTE-01-0145-FEDER-023289: DeCodE and project Mobilizador Norte-01-0247-FEDER-024479: ValorNatural®.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRoriz, Custódio Lobo; Alves, Maria José; Morales, Patrícia; Barros, Lillian; Ferreira, Isabel C.F.R. (2018). Amaranthus caudatus L. as a source of betacyanins with coloring and antimicrobial properties. In UNIFood Conference. Belgrado, Sérviapt_PT
dc.identifier.urihttp://hdl.handle.net/10198/18121
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationDevelopment of a new colouring agent from Gomphrena globosa L.: optimization of the extraction process, stability studies and proof-of-concept in a food matrix
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAmaranthus caudatus L.pt_PT
dc.titleAmaranthus caudatus L. as a source of betacyanins with coloring and antimicrobial properties.pt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleDevelopment of a new colouring agent from Gomphrena globosa L.: optimization of the extraction process, stability studies and proof-of-concept in a food matrix
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F00690%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F117995%2F2016/PT
oaire.citation.conferencePlacebelgrado, Sérviapt_PT
oaire.citation.titleUNIFood Conferencept_PT
oaire.fundingStream5876
oaire.fundingStreamPOR_NORTE
person.familyNameRoriz
person.familyNameAlves
person.familyNameBarros
person.familyNameFerreira
person.givenNameCustódio Lobo
person.givenNameMaria José
person.givenNameLillian
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier144781
person.identifier.ciencia-id9519-D97C-6B17
person.identifier.ciencia-idD618-B3A9-D312
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-4021-1078
person.identifier.orcid0000-0001-8506-4393
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridM-6624-2016
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id56151637600
person.identifier.scopus-author-id16400584800
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
relation.isAuthorOfPublicationd13ab9dd-af85-4652-bae4-88b2a9034d79
relation.isAuthorOfPublication7850f8c2-8834-4d5a-b4a7-df482abd76d3
relation.isAuthorOfPublication3af07ffe-f914-48ba-a5d5-efcf70fdce01
relation.isAuthorOfPublicationbd0d1537-2e03-41fb-b27a-140af9c35db8
relation.isAuthorOfPublication.latestForDiscovery7850f8c2-8834-4d5a-b4a7-df482abd76d3
relation.isProjectOfPublicationcfb6e380-87c4-4772-8c2c-76799a53d6df
relation.isProjectOfPublication97ff0d55-cc57-45a0-bf78-2087c5fdd5c8
relation.isProjectOfPublication.latestForDiscovery97ff0d55-cc57-45a0-bf78-2087c5fdd5c8

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Oral Int. 108.pdf
Size:
1.19 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CIMO - Resumos em Proceedings Não Indexados à WoS/Scopus