Effect of Hydrogen Peroxide on Cyanobacterial Biofilms

Detalhes bibliográficos
Autor(a) principal: Romeu, MJ
Data de Publicação: 2023
Outros Autores: Morais, J, Vasconcelos, V, Filipe Mergulhão
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/10216/152988
Resumo: Although a range of disinfecting formulations is commercially available, hydrogen peroxide is one of the safest chemical agents used for disinfection in aquatic environments. However, its effect on cyanobacterial biofilms is poorly investigated. In this work, biofilm formation by two filamentous cyanobacterial strains was evaluated over seven weeks on two surfaces commonly used in marine environments: glass and silicone-based paint (Sil-Ref) under controlled hydrodynamic conditions. After seven weeks, the biofilms were treated with a solution of hydrogen peroxide (H2O2) to assess if disinfection could affect long-term biofilm development. The cyanobacterial biofilms appeared to be tolerant to H2O2 treatment, and two weeks after treatment, the biofilms that developed on glass by one of the strains presented higher biomass amounts than the untreated biofilms. This result emphasizes the need to correctly evaluate the efficiency of disinfection in cyanobacterial biofilms, including assessing the possible consequences of inefficient disinfection on the regrowth of these biofilms. (c) 2023 by the authors.
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spelling Effect of Hydrogen Peroxide on Cyanobacterial BiofilmsAlthough a range of disinfecting formulations is commercially available, hydrogen peroxide is one of the safest chemical agents used for disinfection in aquatic environments. However, its effect on cyanobacterial biofilms is poorly investigated. In this work, biofilm formation by two filamentous cyanobacterial strains was evaluated over seven weeks on two surfaces commonly used in marine environments: glass and silicone-based paint (Sil-Ref) under controlled hydrodynamic conditions. After seven weeks, the biofilms were treated with a solution of hydrogen peroxide (H2O2) to assess if disinfection could affect long-term biofilm development. The cyanobacterial biofilms appeared to be tolerant to H2O2 treatment, and two weeks after treatment, the biofilms that developed on glass by one of the strains presented higher biomass amounts than the untreated biofilms. This result emphasizes the need to correctly evaluate the efficiency of disinfection in cyanobacterial biofilms, including assessing the possible consequences of inefficient disinfection on the regrowth of these biofilms. (c) 2023 by the authors.20232023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/152988eng10.3390/antibiotics12091450Romeu, MJMorais, JVasconcelos, VFilipe Mergulhãoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T15:08:03Zoai:repositorio-aberto.up.pt:10216/152988Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:16:24.470489Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Effect of Hydrogen Peroxide on Cyanobacterial Biofilms
title Effect of Hydrogen Peroxide on Cyanobacterial Biofilms
spellingShingle Effect of Hydrogen Peroxide on Cyanobacterial Biofilms
Romeu, MJ
title_short Effect of Hydrogen Peroxide on Cyanobacterial Biofilms
title_full Effect of Hydrogen Peroxide on Cyanobacterial Biofilms
title_fullStr Effect of Hydrogen Peroxide on Cyanobacterial Biofilms
title_full_unstemmed Effect of Hydrogen Peroxide on Cyanobacterial Biofilms
title_sort Effect of Hydrogen Peroxide on Cyanobacterial Biofilms
author Romeu, MJ
author_facet Romeu, MJ
Morais, J
Vasconcelos, V
Filipe Mergulhão
author_role author
author2 Morais, J
Vasconcelos, V
Filipe Mergulhão
author2_role author
author
author
dc.contributor.author.fl_str_mv Romeu, MJ
Morais, J
Vasconcelos, V
Filipe Mergulhão
description Although a range of disinfecting formulations is commercially available, hydrogen peroxide is one of the safest chemical agents used for disinfection in aquatic environments. However, its effect on cyanobacterial biofilms is poorly investigated. In this work, biofilm formation by two filamentous cyanobacterial strains was evaluated over seven weeks on two surfaces commonly used in marine environments: glass and silicone-based paint (Sil-Ref) under controlled hydrodynamic conditions. After seven weeks, the biofilms were treated with a solution of hydrogen peroxide (H2O2) to assess if disinfection could affect long-term biofilm development. The cyanobacterial biofilms appeared to be tolerant to H2O2 treatment, and two weeks after treatment, the biofilms that developed on glass by one of the strains presented higher biomass amounts than the untreated biofilms. This result emphasizes the need to correctly evaluate the efficiency of disinfection in cyanobacterial biofilms, including assessing the possible consequences of inefficient disinfection on the regrowth of these biofilms. (c) 2023 by the authors.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-01-01T00:00:00Z
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.3390/antibiotics12091450
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