Publicação
Arbutus unedo L. leaves as source of phytochemicals with bioactive properties
| Resumo: | In recent years the strawberry tree (Arbutus unedo L.) is being gradually replaced by other species with higher economic value. With the ultimate goal of selecting superior genotypes, the present work was initiated to study the antioxidant and antimicrobial activities, and total phenolic content in 19 different genotypes of A. unedo leaves from the Trás-os-Montes region of Portugal. The genotype Braganc¸ a 1 contains higher total phenolic content (215.0 mg GAE/gextract) whereas the Vila Boa 4 genotype shows lower total phenolic content (148.0 mg GAE/gextract). In both methods tested to evaluate the antioxidant activity, Vila Verde and Donai displayed the highest antioxidant capacity (EC50 values of 0.088 and 0.090 mg/mL, respectively, for DPPH; EC50 values of 0.233 and 0.245 mg/mL, respectively, for reducing power assay) while Vila Boa 2 reported the lowest antioxidant potential (EC50 values of 0.142 and 0.378 mg/mL, respectively, in DPPH and reducing power methods). Linear negative correlations were established between the total phenol contents and the EC50 values for both of the antioxidant activity methods tested. Preliminary assays for antimicrobial potential showed that extracts from A. unedo leaves display antibacterial activity, with MIC values of 1 and 5 mg/mL for some Grampositive and Gram-negative bacteria, respectively. Taken together, the results suggest that A. unedo leaves are a potential source of natural compounds with valuable bioactive properties that could be explored by the pharmaceutical, chemical and food industries. |
|---|---|
| Autores principais: | Malheiro, Ricardo |
| Outros Autores: | Sá, Olga; Pereira, Eric Carvalho; Aguiar, Cristina; Baptista, Paula; Pereira, J.A. |
| Assunto: | Arbutus unedo L. leaves Aqueous extracts Antioxidant activity Antimicrobial properties Total phenols |
| Ano: | 2012 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1863851015022837760 |
|---|---|
| author | Malheiro, Ricardo |
| author2 | Sá, Olga Pereira, Eric Carvalho Aguiar, Cristina Baptista, Paula Pereira, J.A. |
| author2_role | author author author author author |
| author_facet | Malheiro, Ricardo Sá, Olga Pereira, Eric Carvalho Aguiar, Cristina Baptista, Paula Pereira, J.A. |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_str | [{\"Person.name\":\"Malheiro, Ricardo\",\"Person.identifier.orcid\":\"0000-0002-7342-0511\"},{\"Person.name\":\"Sá, Olga\"},{\"Person.name\":\"Pereira, Eric Carvalho\"},{\"Person.name\":\"Aguiar, Cristina\"},{\"Person.name\":\"Baptista, Paula\",\"Person.identifier.orcid\":\"0000-0001-6331-3731\"},{\"Person.name\":\"Pereira, J.A.\",\"Person.identifier.orcid\":\"0000-0002-2260-0600\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Malheiro, Ricardo Sá, Olga Pereira, Eric Carvalho Aguiar, Cristina Baptista, Paula Pereira, J.A. |
| datacite.date.Accepted.fl_str_mv | 2012-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2014-09-22T10:29:12Z |
| datacite.date.embargoed.fl_str_mv | 2014-09-22T10:29:12Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Arbutus unedo L. leaves Aqueous extracts Antioxidant activity Antimicrobial properties Total phenols |
| datacite.titles.title.fl_str_mv | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Malheiro, Ricardo Sá, Olga Pereira, Eric Carvalho Aguiar, Cristina Baptista, Paula Pereira, J.A. |
| dc.date.Accepted.fl_str_mv | 2012-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2014-09-22T10:29:12Z |
| dc.date.embargoed.fl_str_mv | 2014-09-22T10:29:12Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/10518 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Arbutus unedo L. leaves Aqueous extracts Antioxidant activity Antimicrobial properties Total phenols |
| dc.title.fl_str_mv | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | In recent years the strawberry tree (Arbutus unedo L.) is being gradually replaced by other species with higher economic value. With the ultimate goal of selecting superior genotypes, the present work was initiated to study the antioxidant and antimicrobial activities, and total phenolic content in 19 different genotypes of A. unedo leaves from the Trás-os-Montes region of Portugal. The genotype Braganc¸ a 1 contains higher total phenolic content (215.0 mg GAE/gextract) whereas the Vila Boa 4 genotype shows lower total phenolic content (148.0 mg GAE/gextract). In both methods tested to evaluate the antioxidant activity, Vila Verde and Donai displayed the highest antioxidant capacity (EC50 values of 0.088 and 0.090 mg/mL, respectively, for DPPH; EC50 values of 0.233 and 0.245 mg/mL, respectively, for reducing power assay) while Vila Boa 2 reported the lowest antioxidant potential (EC50 values of 0.142 and 0.378 mg/mL, respectively, in DPPH and reducing power methods). Linear negative correlations were established between the total phenol contents and the EC50 values for both of the antioxidant activity methods tested. Preliminary assays for antimicrobial potential showed that extracts from A. unedo leaves display antibacterial activity, with MIC values of 1 and 5 mg/mL for some Grampositive and Gram-negative bacteria, respectively. Taken together, the results suggest that A. unedo leaves are a potential source of natural compounds with valuable bioactive properties that could be explored by the pharmaceutical, chemical and food industries. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/c333edff-73ef-4a7b-a7b9-78a1407c4c3f/download |
| id | ipb_da727e44131b52f76164ca1cdcc2e0cd |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/10518 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/10518 |
| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Malheiro, Ricardo Malheiro, Ricardo http://orcid.org/0000-0002-7342-0511 0000-0002-7342-0511 Sá, Olga Pereira, Eric Carvalho Aguiar, Cristina Baptista, Paula Baptista, Paula https://www.ciencia-id.pt/7D11-FE1E-CD0F 7D11-FE1E-CD0F http://orcid.org/0000-0001-6331-3731 0000-0001-6331-3731 Pereira, J.A. Pereira, J.A. https://www.ciencia-id.pt/611F-80B2-A7C1 611F-80B2-A7C1 http://orcid.org/0000-0002-2260-0600 0000-0002-2260-0600 |
| publishDate | 2012 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | Biblioteca Digital do IPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engElsevierporIn recent years the strawberry tree (Arbutus unedo L.) is being gradually replaced by other species with higher economic value. With the ultimate goal of selecting superior genotypes, the present work was initiated to study the antioxidant and antimicrobial activities, and total phenolic content in 19 different genotypes of A. unedo leaves from the Trás-os-Montes region of Portugal. The genotype Braganc¸ a 1 contains higher total phenolic content (215.0 mg GAE/gextract) whereas the Vila Boa 4 genotype shows lower total phenolic content (148.0 mg GAE/gextract). In both methods tested to evaluate the antioxidant activity, Vila Verde and Donai displayed the highest antioxidant capacity (EC50 values of 0.088 and 0.090 mg/mL, respectively, for DPPH; EC50 values of 0.233 and 0.245 mg/mL, respectively, for reducing power assay) while Vila Boa 2 reported the lowest antioxidant potential (EC50 values of 0.142 and 0.378 mg/mL, respectively, in DPPH and reducing power methods). Linear negative correlations were established between the total phenol contents and the EC50 values for both of the antioxidant activity methods tested. Preliminary assays for antimicrobial potential showed that extracts from A. unedo leaves display antibacterial activity, with MIC values of 1 and 5 mg/mL for some Grampositive and Gram-negative bacteria, respectively. Taken together, the results suggest that A. unedo leaves are a potential source of natural compounds with valuable bioactive properties that could be explored by the pharmaceutical, chemical and food industries.application/pdfporArbutus unedo L. leaves as source of phytochemicals with bioactive propertiesPersonalMalheiro, RicardoDSpacehttp://dspace.org/items/0fa7974d-abd3-444b-9a7e-16d16530a0f7DSpacehttp://dspace.org/items/0fa7974d-abd3-444b-9a7e-16d16530a0f7MalheiroRicardoORCIDhttp://orcid.org0000-0002-7342-0511Scopus Author IDhttps://www.scopus.com25650218300Sá, OlgaPereira, Eric CarvalhoAguiar, CristinaPersonalBaptista, PaulaDSpacehttp://dspace.org/items/3f35226a-b17a-4f7d-8da1-3297105cbfe9DSpacehttp://dspace.org/items/3f35226a-b17a-4f7d-8da1-3297105cbfe9BaptistaPaulaCiência IDhttps://www.ciencia-id.pt7D11-FE1E-CD0FORCIDhttp://orcid.org0000-0001-6331-3731Scopus Author IDhttps://www.scopus.com14051688000Scopus Author IDhttps://www.scopus.com57394839600PersonalPereira, J.A.DSpacehttp://dspace.org/items/7932162e-a2da-4913-b00d-17babbe51857DSpacehttp://dspace.org/items/7932162e-a2da-4913-b00d-17babbe51857PereiraJosé AlbertoCiência IDhttps://www.ciencia-id.pt611F-80B2-A7C1ORCIDhttp://orcid.org0000-0002-2260-0600Researcher IDhttps://www.researcherid.comL-6798-2014Scopus Author IDhttps://www.scopus.com57204366348HostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISSNIsPartOf0926-6690DOIIsPartOf10.1016/j.indcrop.2011.07.0232014-09-22T10:29:12Z20122012-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/10518http://purl.org/coar/access_right/c_16ecrestricted accessArbutus unedo L. leavesAqueous extractsAntioxidant activityAntimicrobial propertiesTotal phenols581229 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/c333edff-73ef-4a7b-a7b9-78a1407c4c3f/downloadIndustrial Crops and Products371473478 |
| spellingShingle | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties Malheiro, Ricardo Arbutus unedo L. leaves Aqueous extracts Antioxidant activity Antimicrobial properties Total phenols |
| subject.fl_str_mv | Arbutus unedo L. leaves Aqueous extracts Antioxidant activity Antimicrobial properties Total phenols |
| title | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties |
| title_full | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties |
| title_fullStr | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties |
| title_full_unstemmed | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties |
| title_short | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties |
| title_sort | Arbutus unedo L. leaves as source of phytochemicals with bioactive properties |
| topic | Arbutus unedo L. leaves Aqueous extracts Antioxidant activity Antimicrobial properties Total phenols |
| topic_facet | Arbutus unedo L. leaves Aqueous extracts Antioxidant activity Antimicrobial properties Total phenols |
| url | http://hdl.handle.net/10198/10518 |
| visible | 1 |