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Pilot study of the air mycobiota of a cheese factory

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Resumo:Mould growth on cheese is very common and the main contamination source is believed to be the environment in the production facilities. The growth of filamentous fungi on the cheese surface makes the product undesirable and can even present a health risk due to the production of secondary metabolites, such as mycotoxins. In fact, conditions at which ripening occurs are favourable to fungi development, and indigenous moulds of the ripening rooms may colonize the surface of cheeses. This work intended to investigate the air mycobiota of a Portuguese cheese industry to uncover the role of the air of the ripening chamber as the source of the observed cheese contamination. Air samples were collected using the impaction method on DRBC Petri dishes. Colonies were counted and, after seven days, the most common fungi were isolated in PDA medium. A contaminated cheese was also chosen to isolate visible fungi. Fungal isolates were identified through observation of microscopic characteristics and molecular methods (analysis of ITS or partial benA). Three isolates were retrieved directly from the cheese and seven from the air samples. The identified genera were Penicillium, Aspergillus, Botrytis and Cladosporium. From cheese, only one species of Penicillium was isolated, which corresponded to the most abundant species from the air samples. The most relevant genus in the air mycobiota was Penicillium, with 3 isolates from 3 species, whereas all other genera were only represented by one species. This study indicates that the air of the ripening room is a source of contamination for cheese and mitigation measures must be implemented.
Autores principais:Dias, Teresa
Outros Autores:Santos, Carla; Salgado, Susana; Rodrigues, Paula; Venâncio, Armando
Assunto:Mycobiota Cheese Research Subject Categories::TECHNOLOGY::Chemical engineering::Food technology
Ano:2022
País:Portugal
Tipo de documento:póster em conferência
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB
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author Dias, Teresa
author2 Santos, Carla
Salgado, Susana
Rodrigues, Paula
Venâncio, Armando
author2_role author
author
author
author
author_facet Dias, Teresa
Santos, Carla
Salgado, Susana
Rodrigues, Paula
Venâncio, Armando
author_role author
contributor_name_str_mv Biblioteca Digital do IPB
country_str PT
creators_json_txt [{\"Person.name\":\"Dias, Teresa\",\"Person.identifier.orcid\":\"0000-0002-9419-9561\"},{\"Person.name\":\"Santos, Carla\"},{\"Person.name\":\"Salgado, Susana\"},{\"Person.name\":\"Rodrigues, Paula\",\"Person.identifier.orcid\":\"0000-0002-3789-2730\"},{\"Person.name\":\"Venâncio, Armando\"}]
datacite.contributors.contributor.contributorName.fl_str_mv Biblioteca Digital do IPB
datacite.creators.creator.creatorName.fl_str_mv Dias, Teresa
Santos, Carla
Salgado, Susana
Rodrigues, Paula
Venâncio, Armando
datacite.date.Accepted.fl_str_mv 2022-01-01T00:00:00Z
datacite.date.available.fl_str_mv 2023-05-18T09:50:04Z
datacite.date.embargoed.fl_str_mv 2023-05-18T09:50:04Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_abf2
datacite.subjects.subject.fl_str_mv Mycobiota
Cheese
Research Subject Categories::TECHNOLOGY::Chemical engineering::Food technology
datacite.titles.title.fl_str_mv Pilot study of the air mycobiota of a cheese factory
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.creator.none.fl_str_mv Dias, Teresa
Santos, Carla
Salgado, Susana
Rodrigues, Paula
Venâncio, Armando
dc.date.Accepted.fl_str_mv 2022-01-01T00:00:00Z
dc.date.available.fl_str_mv 2023-05-18T09:50:04Z
dc.date.embargoed.fl_str_mv 2023-05-18T09:50:04Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv http://hdl.handle.net/10198/28309
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 Mycobiota
Cheese
Research Subject Categories::TECHNOLOGY::Chemical engineering::Food technology
dc.title.fl_str_mv Pilot study of the air mycobiota of a cheese factory
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_6670
description Mould growth on cheese is very common and the main contamination source is believed to be the environment in the production facilities. The growth of filamentous fungi on the cheese surface makes the product undesirable and can even present a health risk due to the production of secondary metabolites, such as mycotoxins. In fact, conditions at which ripening occurs are favourable to fungi development, and indigenous moulds of the ripening rooms may colonize the surface of cheeses. This work intended to investigate the air mycobiota of a Portuguese cheese industry to uncover the role of the air of the ripening chamber as the source of the observed cheese contamination. Air samples were collected using the impaction method on DRBC Petri dishes. Colonies were counted and, after seven days, the most common fungi were isolated in PDA medium. A contaminated cheese was also chosen to isolate visible fungi. Fungal isolates were identified through observation of microscopic characteristics and molecular methods (analysis of ITS or partial benA). Three isolates were retrieved directly from the cheese and seven from the air samples. The identified genera were Penicillium, Aspergillus, Botrytis and Cladosporium. From cheese, only one species of Penicillium was isolated, which corresponded to the most abundant species from the air samples. The most relevant genus in the air mycobiota was Penicillium, with 3 isolates from 3 species, whereas all other genera were only represented by one species. This study indicates that the air of the ripening room is a source of contamination for cheese and mitigation measures must be implemented.
dirty 0
eu_rights_str_mv openAccess
format conferencePoster
fulltext.url.fl_str_mv https://bibliotecadigital.ipb.pt/bitstreams/6df03d89-6799-4518-b65e-4f1a5dd9e51b/download
funding.funder.alternateName_str_mv FCT
FCT
funding.funder.identifier_str_mv 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
funding.name_str_mv 6817 - DCRRNI ID
6817 - DCRRNI ID
id ipb_2947e65e00ec12beee192e451d47ece3
identifier.url.fl_str_mv http://hdl.handle.net/10198/28309
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institution Instituto Politécnico de Bragança
instname_str Instituto Politécnico de Bragança
language eng
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network_name_str Biblioteca Digital do IPB
oai_identifier_str oai:bibliotecadigital.ipb.pt:10198/28309
organization_str_mv urn:organizationAcronym:ipb
person_str_mv Dias, Teresa
Dias, Teresa
http://orcid.org/0000-0002-9419-9561
0000-0002-9419-9561
Santos, Carla
Salgado, Susana
Rodrigues, Paula
Rodrigues, Paula
https://www.ciencia-id.pt/2312-18AE-DA42
2312-18AE-DA42
http://orcid.org/0000-0002-3789-2730
0000-0002-3789-2730
Venâncio, Armando
publishDate 2022
reponame_str Biblioteca Digital do IPB
repository_id_str urn:repositoryAcronym:ipb
service_str_mv urn:repositoryAcronym:ipb
spelling engpt_PTMould growth on cheese is very common and the main contamination source is believed to be the environment in the production facilities. The growth of filamentous fungi on the cheese surface makes the product undesirable and can even present a health risk due to the production of secondary metabolites, such as mycotoxins. In fact, conditions at which ripening occurs are favourable to fungi development, and indigenous moulds of the ripening rooms may colonize the surface of cheeses. This work intended to investigate the air mycobiota of a Portuguese cheese industry to uncover the role of the air of the ripening chamber as the source of the observed cheese contamination. Air samples were collected using the impaction method on DRBC Petri dishes. Colonies were counted and, after seven days, the most common fungi were isolated in PDA medium. A contaminated cheese was also chosen to isolate visible fungi. Fungal isolates were identified through observation of microscopic characteristics and molecular methods (analysis of ITS or partial benA). Three isolates were retrieved directly from the cheese and seven from the air samples. The identified genera were Penicillium, Aspergillus, Botrytis and Cladosporium. From cheese, only one species of Penicillium was isolated, which corresponded to the most abundant species from the air samples. The most relevant genus in the air mycobiota was Penicillium, with 3 isolates from 3 species, whereas all other genera were only represented by one species. This study indicates that the air of the ripening room is a source of contamination for cheese and mitigation measures must be implemented.application/pdfpt_PTPilot study of the air mycobiota of a cheese factoryPersonalDias, TeresaDSpacehttp://dspace.org/items/87c9cae0-314d-4622-ba85-4d3ec5726606DSpacehttp://dspace.org/items/87c9cae0-314d-4622-ba85-4d3ec5726606DiasTeresaORCIDhttp://orcid.org0000-0002-9419-9561Scopus Author IDhttps://www.scopus.com56830642600Santos, CarlaSalgado, SusanaPersonalRodrigues, PaulaDSpacehttp://dspace.org/items/b864b8c1-d66a-419c-b1ac-e6193f93eca6DSpacehttp://dspace.org/items/b864b8c1-d66a-419c-b1ac-e6193f93eca6RodriguesPaulaCiência IDhttps://www.ciencia-id.pt2312-18AE-DA42ORCIDhttp://orcid.org0000-0002-3789-2730Scopus Author IDhttps://www.scopus.com7102639646Venâncio, ArmandoHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.pt2023-05-18T09:50:04Z20222022-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/28309http://purl.org/coar/access_right/c_abf2open accessMycobiotaCheeseResearch Subject Categories::TECHNOLOGY::Chemical engineering::Food technology669110 bytesFundação para a Ciência e a TecnologiaCentre of Biological Engineering of the University of Minho6817 - DCRRNI IDCrossref Funder IDhttp://doi.org/10.13039/501100001871Fundação para a Ciência e a TecnologiaMountain Research Center6817 - DCRRNI IDCrossref Funder IDhttp://doi.org/10.13039/501100001871other research producthttp://purl.org/coar/resource_type/c_6670conference poster2022http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/6df03d89-6799-4518-b65e-4f1a5dd9e51b/downloadBritish Mycological Society 125th Anniversary Conference: Fungi and the EnvironmentCranfield
spellingShingle Pilot study of the air mycobiota of a cheese factory
Dias, Teresa
Mycobiota
Cheese
Research Subject Categories::TECHNOLOGY::Chemical engineering::Food technology
status SINGLETON
subject.fl_str_mv Mycobiota
Cheese
Research Subject Categories::TECHNOLOGY::Chemical engineering::Food technology
title Pilot study of the air mycobiota of a cheese factory
title_full Pilot study of the air mycobiota of a cheese factory
title_fullStr Pilot study of the air mycobiota of a cheese factory
title_full_unstemmed Pilot study of the air mycobiota of a cheese factory
title_short Pilot study of the air mycobiota of a cheese factory
title_sort Pilot study of the air mycobiota of a cheese factory
topic Mycobiota
Cheese
Research Subject Categories::TECHNOLOGY::Chemical engineering::Food technology
topic_facet Mycobiota
Cheese
Research Subject Categories::TECHNOLOGY::Chemical engineering::Food technology
url http://hdl.handle.net/10198/28309
visible 1