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Basil essential oil as an alternative to commercial biocides against fungi associated with black stains in mural painting

2020Journal article Restricted access
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dc.contributor.authorMarco, Alexandra
dc.contributor.authorSantos, Sandra
dc.contributor.authorCaetano, Joaquim
dc.contributor.authorPintado, Manuela
dc.contributor.authorVieira, Eduarda
dc.contributor.authorMoreira, Patrícia R.
dc.date.accessioned2019-10-21T13:50:28Z
dc.date.available2019-10-21T13:50:28Z
dc.date.issued2020
dc.description.abstractIn northern Portugal it was identified that some mural paintings from the 15th and 16th centuries disclose a chromatic alteration in the form of black stains possibly of microbiological origin. In the search for its cause, samples were collected and microorganisms were isolated from selected areas of the pictorial sets of three case studies that displayed dark pigmentation. Four representative fungal isolates were selected due to their pigmentation and growth characteristics – Alternaria alternata, Alternaria tenuissima, TZ10.2.2 (possibly Pestaloptia sp.) and TZ8.2.2 (possibly Penicillium sp.). An attempt was made to encounter an innovative environmentally innocuous and green safe alternative biocide to replace the chemical-based toxic compounds currently in use. Essential oils with confirmed antifungal potential and seldom employed in the conservation of cultural heritage and even less in mural painting (Rosmarinus officinalis, Foeniculum vulgare, Citrus lemmon, Ocimum basilicum and Salvia officinalis), were tested against commercial biocides (Benzalkonium chloride, Preventol R80, CaSoPaL® and Durolith®), to evaluate their in vitro efficacy and the determination of the minimum inhibitory concentration. Basil was able to inhibit growth on all tested strains at 1.25 μl ml−1. From the commercial biocides, Benzalkonium chloride and Preventol R80 were the ones with the best performance but needed higher concentrations than basil to achieve the same result enabling this essential oil a useful alternative to commercial biocides. The literature regarding the use of essential oils in mural paintings is, apart from two known authors, practically non-existent making it a novel approach.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMarco, A., Santos, S., Caetano, J., Pintado, M., Vieira, E., & Moreira, P. R. (2020). Basil essential oil as an alternative to commercial biocides against fungi associated with black stains in mural painting. Building and Environment, 167, 106459. https://doi.org/10.1016/j.buildenv.2019.106459pt_PT
dc.identifier.doi10.1016/j.buildenv.2019.106459pt_PT
dc.identifier.eid85073563922
dc.identifier.eissn1873-684X
dc.identifier.issn0360-1323
dc.identifier.urihttp://hdl.handle.net/10400.14/28446
dc.identifier.wos000497998100021
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationCentro de Investigação em Ciência e Tecnologia das Artes
dc.subjectWall paintingpt_PT
dc.subjectFungipt_PT
dc.subjectAlternariapt_PT
dc.subjectBiocidespt_PT
dc.subjectEssential oil (EO)pt_PT
dc.subjectMinimum inhibitory concentration (MIC)pt_PT
dc.titleBasil essential oil as an alternative to commercial biocides against fungi associated with black stains in mural paintingpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentro de Investigação em Ciência e Tecnologia das Artes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEAT%2F0622%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F50016%2F2013/PT
oaire.citation.titleBuilding and Environmentpt_PT
oaire.citation.volume167
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream5876
person.familyNameMarco
person.familyNamePintado
person.familyNameVieira
person.familyNameMoreira
person.givenNameAlexandra
person.givenNameMaria Manuela
person.givenNameEduarda
person.givenNamePatrícia
person.identifier456608
person.identifier.ciencia-idA911-517A-8879
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.ciencia-id8519-EBF3-DB52
person.identifier.ciencia-id3A17-0D5A-2C03
person.identifier.orcid0000-0003-2582-6186
person.identifier.orcid0000-0002-0760-3184
person.identifier.orcid0000-0002-0620-080X
person.identifier.orcid0000-0002-0004-851X
person.identifier.ridF-5696-2013
person.identifier.scopus-author-id7004483898
person.identifier.scopus-author-id55912754800
person.identifier.scopus-author-id7006510563
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.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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