Publicação
Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity
| Resumo: | Betalains are a group of secondary metabolites named chromoalkaloids that are synthesized from tyrosine. These compounds have gained some attention in the last few years mainly due to their interesting bioactive potential, namely antioxidant, antimicrobial, and other bioactive properties [1]. Their strong and vibrant colours are also one of the characteristics by which these compounds have gained visibility in the food and pharmaceutical industries [2]. Betalains can be divided in two groups regarding the colour range: betaxanthins in the orange to yellow range, and betacyanins in the purple to pink range. Thereby, these compounds can be used as natural colouring agents, providing alternatives to the massively used artificial counterparts [3]. Although there are already some natural options in the market, these are not enough to meet the needs of the food industry, due to the growing concern of consumers regarding what they eat. Thus, the objectives of this work were to: i) obtain bioactive extracts and with strong colouring capacity from the epicarp of two pitaya varieties, white-fleshed pitaya Hylocereus undatus (Haworth) Britton & Rose (WFP) and red-fleshed pitaya Hylocereus costaricensis (F.A.C.Weber) Britton & Rose (RFP); ii) chemically characterize the betalains’ content through HPLC-DAD-ESI/MS; iii) evaluate the bioactive properties of the extracts, namely antimicrobial activity. The extracts were obtained through a dynamic maceration assisted by heat, and the betacyanins’ profile was characterized by HPLC-DAD-ESI/MS. The antibacterial capacity was determined against a panel of Gram-negative and Gram-positive bacteria using the colorimetric method of rapid detection with p-iodonitrotetrazolium chloride (INT), and the responses obtained were expressed as minimum inhibitory (MIC) and minimum bactericidal (MBC) concentrations. By the chromatographic analysis of the extracts it was possible to identify six compounds in both samples. For the WFP the major compounds identified were 6'-O-malonylbetanin (phylocactin), followed by 4'-malonyl-betanin, while for the RFP the major compound found was phylocactin. In the evaluation of the antibacterial activity, both extracts showed MIC and MBC values that ranged from 10 to 20 mg/mL. Gram-positive bacteria showed to be more susceptible to both extracts then the negative strains. Further studies need to be conducted to better understand the correlation between the bioactive potential and the betacyanins’ composition. Nevertheless, these natural matrixes proved to be viable alternatives for obtaining colouring extracts with antimicrobial properties. |
|---|---|
| Autores principais: | Roriz, Custódio Lobo |
| Outros Autores: | Dias, Maria Inês; Reis, Filipa S.; Pires, Tânia C.S.; Alves, Maria José; Fernandes, Filipa A.; Morales, Patricia; Barros, Lillian; Ferreira, Isabel C.F.R. |
| Assunto: | Dragon fruits |
| Ano: | 2019 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173171116900352 |
|---|---|
| author | Roriz, Custódio Lobo |
| author2 | Dias, Maria Inês Reis, Filipa S. Pires, Tânia C.S. Alves, Maria José Fernandes, Filipa A. Morales, Patricia Barros, Lillian Ferreira, Isabel C.F.R. |
| author2_role | author author author author author author author author |
| author_facet | Roriz, Custódio Lobo Dias, Maria Inês Reis, Filipa S. Pires, Tânia C.S. Alves, Maria José Fernandes, Filipa A. Morales, Patricia Barros, Lillian Ferreira, Isabel C.F.R. |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Roriz, Custódio Lobo\",\"Person.identifier.orcid\":\"0000-0002-4021-1078\"},{\"Person.name\":\"Dias, Maria Inês\",\"Person.identifier.orcid\":\"0000-0001-8744-7814\"},{\"Person.name\":\"Reis, Filipa S.\",\"Person.identifier.orcid\":\"0000-0002-9159-0530\"},{\"Person.name\":\"Pires, Tânia C.S.\",\"Person.identifier.orcid\":\"0000-0002-3954-3833\"},{\"Person.name\":\"Alves, Maria José\",\"Person.identifier.orcid\":\"0000-0001-8506-4393\"},{\"Person.name\":\"Fernandes, Filipa A.\",\"Person.identifier.orcid\":\"0000-0001-6807-1137\"},{\"Person.name\":\"Morales, Patricia\"},{\"Person.name\":\"Barros, Lillian\",\"Person.identifier.orcid\":\"0000-0002-9050-5189\"},{\"Person.name\":\"Ferreira, Isabel C.F.R.\",\"Person.identifier.orcid\":\"0000-0003-4910-4882\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Roriz, Custódio Lobo Dias, Maria Inês Reis, Filipa S. Pires, Tânia C.S. Alves, Maria José Fernandes, Filipa A. Morales, Patricia Barros, Lillian Ferreira, Isabel C.F.R. |
| datacite.date.Accepted.fl_str_mv | 2019-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2019-06-19T15:05:21Z |
| datacite.date.embargoed.fl_str_mv | 2019-06-19T15:05:21Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Dragon fruits |
| datacite.titles.title.fl_str_mv | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Roriz, Custódio Lobo Dias, Maria Inês Reis, Filipa S. Pires, Tânia C.S. Alves, Maria José Fernandes, Filipa A. Morales, Patricia Barros, Lillian Ferreira, Isabel C.F.R. |
| dc.date.Accepted.fl_str_mv | 2019-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2019-06-19T15:05:21Z |
| dc.date.embargoed.fl_str_mv | 2019-06-19T15:05:21Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/19353 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Dragon fruits |
| dc.title.fl_str_mv | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_c94f |
| description | Betalains are a group of secondary metabolites named chromoalkaloids that are synthesized from tyrosine. These compounds have gained some attention in the last few years mainly due to their interesting bioactive potential, namely antioxidant, antimicrobial, and other bioactive properties [1]. Their strong and vibrant colours are also one of the characteristics by which these compounds have gained visibility in the food and pharmaceutical industries [2]. Betalains can be divided in two groups regarding the colour range: betaxanthins in the orange to yellow range, and betacyanins in the purple to pink range. Thereby, these compounds can be used as natural colouring agents, providing alternatives to the massively used artificial counterparts [3]. Although there are already some natural options in the market, these are not enough to meet the needs of the food industry, due to the growing concern of consumers regarding what they eat. Thus, the objectives of this work were to: i) obtain bioactive extracts and with strong colouring capacity from the epicarp of two pitaya varieties, white-fleshed pitaya Hylocereus undatus (Haworth) Britton & Rose (WFP) and red-fleshed pitaya Hylocereus costaricensis (F.A.C.Weber) Britton & Rose (RFP); ii) chemically characterize the betalains’ content through HPLC-DAD-ESI/MS; iii) evaluate the bioactive properties of the extracts, namely antimicrobial activity. The extracts were obtained through a dynamic maceration assisted by heat, and the betacyanins’ profile was characterized by HPLC-DAD-ESI/MS. The antibacterial capacity was determined against a panel of Gram-negative and Gram-positive bacteria using the colorimetric method of rapid detection with p-iodonitrotetrazolium chloride (INT), and the responses obtained were expressed as minimum inhibitory (MIC) and minimum bactericidal (MBC) concentrations. By the chromatographic analysis of the extracts it was possible to identify six compounds in both samples. For the WFP the major compounds identified were 6'-O-malonylbetanin (phylocactin), followed by 4'-malonyl-betanin, while for the RFP the major compound found was phylocactin. In the evaluation of the antibacterial activity, both extracts showed MIC and MBC values that ranged from 10 to 20 mg/mL. Gram-positive bacteria showed to be more susceptible to both extracts then the negative strains. Further studies need to be conducted to better understand the correlation between the bioactive potential and the betacyanins’ composition. Nevertheless, these natural matrixes proved to be viable alternatives for obtaining colouring extracts with antimicrobial properties. |
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| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/a92a3054-7bf8-498d-9a38-990f5842b7d9/download |
| funding.funder.alternateName_str_mv | FCT FCT FCT |
| funding.funder.identifier_str_mv | http://doi.org/10.13039/501100001871 http://doi.org/10.13039/501100001871 http://doi.org/10.13039/501100001871 |
| funding.funder.name_str_mv | Fundação para a Ciência e a Tecnologia Fundação para a Ciência e a Tecnologia Fundação para a Ciência e a Tecnologia |
| funding.name_str_mv | 6817 - DCRRNI ID POR_NORTE POR_NORTE |
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| identifier.url.fl_str_mv | http://hdl.handle.net/10198/19353 |
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| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
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| person_str_mv | Roriz, Custódio Lobo Roriz, Custódio Lobo https://www.ciencia-id.pt/9519-D97C-6B17 9519-D97C-6B17 http://orcid.org/0000-0002-4021-1078 0000-0002-4021-1078 Dias, Maria Inês Dias, Maria Inês https://www.ciencia-id.pt/2A13-4BE6-C7CF 2A13-4BE6-C7CF http://orcid.org/0000-0001-8744-7814 0000-0001-8744-7814 Reis, Filipa S. Reis, Filipa S. https://www.ciencia-id.pt/391F-AFE1-64C7 391F-AFE1-64C7 http://orcid.org/0000-0002-9159-0530 0000-0002-9159-0530 Pires, Tânia C.S. Pires, Tânia C.S. https://www.ciencia-id.pt/321E-2D96-00CA 321E-2D96-00CA http://orcid.org/0000-0002-3954-3833 0000-0002-3954-3833 Alves, Maria José Alves, Maria José https://www.ciencia-id.pt/D618-B3A9-D312 D618-B3A9-D312 http://orcid.org/0000-0001-8506-4393 0000-0001-8506-4393 Fernandes, Filipa A. Fernandes, Filipa A. https://www.ciencia-id.pt/2A1F-9985-F38B 2A1F-9985-F38B http://orcid.org/0000-0001-6807-1137 0000-0001-6807-1137 Morales, Patricia Barros, Lillian Barros, Lillian https://www.ciencia-id.pt/9616-35CB-D001 9616-35CB-D001 http://orcid.org/0000-0002-9050-5189 0000-0002-9050-5189 Ferreira, Isabel C.F.R. Ferreira, Isabel C.F.R. https://www.ciencia-id.pt/9418-CF95-9919 9418-CF95-9919 http://orcid.org/0000-0003-4910-4882 0000-0003-4910-4882 |
| publishDate | 2019 |
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| spelling | engpt_PTBetalains are a group of secondary metabolites named chromoalkaloids that are synthesized from tyrosine. These compounds have gained some attention in the last few years mainly due to their interesting bioactive potential, namely antioxidant, antimicrobial, and other bioactive properties [1]. Their strong and vibrant colours are also one of the characteristics by which these compounds have gained visibility in the food and pharmaceutical industries [2]. Betalains can be divided in two groups regarding the colour range: betaxanthins in the orange to yellow range, and betacyanins in the purple to pink range. Thereby, these compounds can be used as natural colouring agents, providing alternatives to the massively used artificial counterparts [3]. Although there are already some natural options in the market, these are not enough to meet the needs of the food industry, due to the growing concern of consumers regarding what they eat. Thus, the objectives of this work were to: i) obtain bioactive extracts and with strong colouring capacity from the epicarp of two pitaya varieties, white-fleshed pitaya Hylocereus undatus (Haworth) Britton & Rose (WFP) and red-fleshed pitaya Hylocereus costaricensis (F.A.C.Weber) Britton & Rose (RFP); ii) chemically characterize the betalains’ content through HPLC-DAD-ESI/MS; iii) evaluate the bioactive properties of the extracts, namely antimicrobial activity. The extracts were obtained through a dynamic maceration assisted by heat, and the betacyanins’ profile was characterized by HPLC-DAD-ESI/MS. The antibacterial capacity was determined against a panel of Gram-negative and Gram-positive bacteria using the colorimetric method of rapid detection with p-iodonitrotetrazolium chloride (INT), and the responses obtained were expressed as minimum inhibitory (MIC) and minimum bactericidal (MBC) concentrations. By the chromatographic analysis of the extracts it was possible to identify six compounds in both samples. For the WFP the major compounds identified were 6'-O-malonylbetanin (phylocactin), followed by 4'-malonyl-betanin, while for the RFP the major compound found was phylocactin. In the evaluation of the antibacterial activity, both extracts showed MIC and MBC values that ranged from 10 to 20 mg/mL. Gram-positive bacteria showed to be more susceptible to both extracts then the negative strains. Further studies need to be conducted to better understand the correlation between the bioactive potential and the betacyanins’ composition. Nevertheless, these natural matrixes proved to be viable alternatives for obtaining colouring extracts with antimicrobial properties.application/pdfpt_PTDragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacityPersonalRoriz, Custódio LoboDSpacehttp://dspace.org/items/d13ab9dd-af85-4652-bae4-88b2a9034d79DSpacehttp://dspace.org/items/d13ab9dd-af85-4652-bae4-88b2a9034d79RorizCustódio LoboCiência IDhttps://www.ciencia-id.pt9519-D97C-6B17ORCIDhttp://orcid.org0000-0002-4021-1078Scopus Author IDhttps://www.scopus.com56151637600PersonalDias, Maria InêsDSpacehttp://dspace.org/items/7ca8432b-e7f4-4116-a56e-9eba0d4403bdDSpacehttp://dspace.org/items/7ca8432b-e7f4-4116-a56e-9eba0d4403bdDiasMaria InêsCiência IDhttps://www.ciencia-id.pt2A13-4BE6-C7CFORCIDhttp://orcid.org0000-0001-8744-7814Researcher IDhttps://www.researcherid.comM-8242-2013Scopus Author IDhttps://www.scopus.com54388787000PersonalReis, Filipa S.DSpacehttp://dspace.org/items/b8d384ae-2134-4735-93a6-0d2febbf9220DSpacehttp://dspace.org/items/b8d384ae-2134-4735-93a6-0d2febbf9220ReisFilipa S.Ciência IDhttps://www.ciencia-id.pt391F-AFE1-64C7ORCIDhttp://orcid.org0000-0002-9159-0530Researcher IDhttps://www.researcherid.comI-2093-2013Scopus Author IDhttps://www.scopus.com36982144400PersonalPires, Tânia C.S.DSpacehttp://dspace.org/items/34af4d18-b8ae-4329-9450-69dc35ed448fDSpacehttp://dspace.org/items/34af4d18-b8ae-4329-9450-69dc35ed448fPiresTânia C.S.P.Ciência IDhttps://www.ciencia-id.pt321E-2D96-00CAORCIDhttp://orcid.org0000-0002-3954-3833Researcher IDhttps://www.researcherid.comQ-2842-2018Scopus Author IDhttps://www.scopus.com57057440000PersonalAlves, Maria JoséDSpacehttp://dspace.org/items/7850f8c2-8834-4d5a-b4a7-df482abd76d3DSpacehttp://dspace.org/items/7850f8c2-8834-4d5a-b4a7-df482abd76d3AlvesMaria JoséCiência IDhttps://www.ciencia-id.ptD618-B3A9-D312ORCIDhttp://orcid.org0000-0001-8506-4393Researcher IDhttps://www.researcherid.comM-6624-2016Scopus Author IDhttps://www.scopus.com16400584800PersonalFernandes, Filipa A.DSpacehttp://dspace.org/items/95f2a15c-591c-44b9-bcc3-dfdf49c6af26DSpacehttp://dspace.org/items/95f2a15c-591c-44b9-bcc3-dfdf49c6af26FernandesFilipa AlexandraCiência IDhttps://www.ciencia-id.pt2A1F-9985-F38BORCIDhttp://orcid.org0000-0001-6807-1137Researcher IDhttps://www.researcherid.comA-8045-2019Morales, PatriciaPersonalBarros, LillianDSpacehttp://dspace.org/items/3af07ffe-f914-48ba-a5d5-efcf70fdce01DSpacehttp://dspace.org/items/3af07ffe-f914-48ba-a5d5-efcf70fdce01BarrosLillianCiência IDhttps://www.ciencia-id.pt9616-35CB-D001ORCIDhttp://orcid.org0000-0002-9050-5189Researcher IDhttps://www.researcherid.comJ-3600-2013Researcher IDhttps://www.researcherid.comJ-3600-2013Scopus Author IDhttps://www.scopus.com35236343600Scopus Author IDhttps://www.scopus.com57194900801PersonalFerreira, Isabel C.F.R.DSpacehttp://dspace.org/items/bd0d1537-2e03-41fb-b27a-140af9c35db8DSpacehttp://dspace.org/items/bd0d1537-2e03-41fb-b27a-140af9c35db8FerreiraIsabel C.F.R.Ciência IDhttps://www.ciencia-id.pt9418-CF95-9919ORCIDhttp://orcid.org0000-0003-4910-4882Researcher IDhttps://www.researcherid.comE-8500-2013Scopus Author IDhttps://www.scopus.com36868826600HostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISBNIsPartOf978-989-8124-26-52019-06-19T15:05:21Z20192019-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/19353http://purl.org/coar/access_right/c_abf2open accessDragon fruits1405945 bytesFundação para a Ciência e a TecnologiaMountain Research Centre6817 - DCRRNI IDCrossref Funder IDhttp://doi.org/10.13039/501100001871Fundação para a Ciência e a TecnologiaDevelopment of a new colouring agent from Gomphrena globosa L.: optimization of the extraction process, stability studies and proof-of-concept in a food matrixPOR_NORTECrossref Funder IDhttp://doi.org/10.13039/501100001871Fundação para a Ciência e a TecnologiaBio-based coloring agents for food applications: a “biorefinery” approach from the bio-waste of blueberry fruits and edible petalsPOR_NORTECrossref Funder IDhttp://doi.org/10.13039/501100001871other research producthttp://purl.org/coar/resource_type/c_c94fconference object2019http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/a92a3054-7bf8-498d-9a38-990f5842b7d9/downloadXX EuroFoodChem ConferencePorto, Portugal |
| spellingShingle | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity Roriz, Custódio Lobo Dragon fruits |
| status | SINGLETON |
| subject.fl_str_mv | Dragon fruits |
| title | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity |
| title_full | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity |
| title_fullStr | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity |
| title_full_unstemmed | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity |
| title_short | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity |
| title_sort | Dragon fruits as an alternative source of colorants: evaluation of antibacterial activity and colouring capacity |
| topic | Dragon fruits |
| topic_facet | Dragon fruits |
| url | http://hdl.handle.net/10198/19353 |
| visible | 1 |