Biofouling and biodeterioration in materials stored at the Historical Archive of the Museum of La Plata, Argentine and at the National Archive of the Republic of Cuba

Guiamet, Patricia Sandra; Borrego, Sofía; Lavin, Paola; Perdomo, Ivette; Saravia, Sandra Gómez de

doi:10.1016/j.colsurfb.2011.02.031

Cited by 79 publications

(73 citation statements)

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“…Estos resultados concuerdan solo de forma parcial con los obtenidos por otros autores (Rojas, et al, 2008) incluso en estudios realizados años atrás en el mismo local (García, 1997;Guiamet et al, 2011). Muchos autores dentro de los que se incluyen los antes mencionados plantean que los géneros más representativos en el aire tanto de interiores como de exteriores son Aspergillus, Penicillium y Cladosporium, mientras que en este estudio Curvularia sustituyó a Clasdosporium.…”

Section: Densidades Relativas De Los Géneros Identificados En El Aireunclassified

“…de Vries., esto concuerda con otros estudios realizados en ambientes de bibliotecas y archivos (Valentín, 2001(Valentín, , 2004Rojas, 2010;Borrego y Perdomo, 2012). Estas especies se encuentra reportadas por otros autores como las de mayor predominio dentro del género en ambientes interiores (Anderson, 2003;Payam y Ramanathan, 2004;Borrego et al, 2008;Guiamet et al, 2011;Hung et al;. Además representantes del complejo han sido detectados en interiores de viviendas con problemas de humedad en otros países como Bélgica (Beguin y Nolard, 1994).…”

Section: Identificación Específica De Los Hongos Aislados Del Aireunclassified

“…Sin embargo, al producirse un incremento de la temperatura y la humedad relativa, los hongos pueden tener efectos negativos sobre las colecciones (Borrego et al, 2010 a;Guiamet et al, 2011). De ahí que para definir la calidad del aire en ambientes interiores, es necesario el conocimiento de la concentración fúngica en el interior de los locales.…”

Section: Introductionunclassified

“…Este aspecto reviste una mayor significación en países de clima tropical al encontrarse un elevado nivel de propágulos fúngicos en el aire. Esta condición unida a los elevados contenidos de humedad relativa en él, favorecen la deposición de éstos sobre los sustratos y por tanto su desarrollo, propiciándose así, el biodeterioro de los soportes tanto de origen orgánico como inorgánico (Guiamet et al, 2011).…”

Section: Introductionunclassified

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Análisis De La Micobiota Existente en El Ambiente Interior De La Mapoteca Del Archivo Nacional De La República De Cuba

Molina¹,

A²

2014

Bol. Micol.

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Palabras clave: hongos filamentosos, calidad de ambiente interior, muestreo aerobiológico, patrimonio documental. Key words: aerobiological sampling, documentary heritage, filamentous fungi, indoor environmental quality. RESUMENActualmente el estudio de la concentración fúngica en ambientes interiores es de interés para los especialistas, pues los hongos pueden causar el biodeterioro de colecciones valiosas y resultan peligrosos para la salud humana ya que provocan alergias y otras enfermedades al hombre que está en contacto con ellos. El objetivo del trabajo fue evaluar microbioló-gicamente el ambiente de la Mapoteca del Archivo Nacional de la República de Cuba y el polvo depositado sobre el mobiliario que conserva los mapas y planos en ese local. El estudio se ejecutó en un mes lluvioso y el muestreo microbiológico del aire se realizó empleando un método de sedimentación mientras que el polvo se colectó por aspiración. Los hongos se aislaron en medios de cultivo adecuados y los análisis se realizaron por triplicado. La concentración fúngica detectada en el aire fue inferior a las 750 UFC.m

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Section: Densidades Relativas De Los Géneros Identificados En El Aireunclassified

Section: Identificación Específica De Los Hongos Aislados Del Aireunclassified

Section: Introductionunclassified

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Análisis De La Micobiota Existente en El Ambiente Interior De La Mapoteca Del Archivo Nacional De La República De Cuba

Molina¹,

A²

2014

Bol. Micol.

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“…The development of microorganisms is the most important process contributing to the degradation of the tiles (Silvestre and Brito 2009) The mineralogy and chemistry of the German and Portuguese tiles used to face a historic building in the Amazon region and their natural susceptibility to tropical weathering 2010; Guiamet et al 2011). Cyanobacteria are a common component of the masonry of buildings in regions with humid tropical climates, like that of Belém (Torraca 1988;Caneva 1991;Schumann et al 2005).…”

Section: The Action Of Microorganismsmentioning

confidence: 99%

The mineralogy and chemistry of the German and Portuguese tiles used to face a historic building in the Amazon region and their natural susceptibility to tropical weathering

2013

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During the 19th century, the most prominent buildings of the city of Belém were faced entirely with tiles manufactured in Portugal and Germany, which now exhibit distinct degrees of degradation. The Pinho mansion is one of the most important of these buildings and was selected for the investigation of the action of the tropical Amazonian climate on the degradation of the tiles. To achieve this objective, the tiles were mapped for organic and inorganic degradation, and samples were collected for analysis. The minerals were determined by XRD, the chemical composition by classical wet methods and SEM/EDS, and the microorganisms under the microscope. The results show that the German and Portuguese tiles are quite different in their composition. While both ceramic bodies are composed of SiO 2 and Al 2 O 3 , CaO was found only in the Portuguese tile. The low Na 2 O and K 2 O contents indicate the addition of materials to reduce the fusion temperature. SiO 2 and PbO are the main constituents of the glaze, with CoO and FeO being added as pigment. The ceramic body of the German tiles is constituted of quartz, mullite, and cristobalite, in contrast with the Portuguese tiles, which are made of quartz, gehlenite, diopside, calcite, and feldspars. The glazes are XRD-amorphous. The chemical and mineralogical differences between the German and Portuguese tiles indicate that they were produced from different raw materials under distinct thermal processes. The most prominent weathering-related modifications are the thin layers (German tiles), oxidation stains, dark stains, the detachment of the tile (Portuguese tiles), loss of the glaze and powdering of the ceramic body (Portuguese tiles) through the establishment of Cyanophyta and Bacillariophyta.. The distinct degradation patterns of the tiles exposed to the tropical Amazon climate are a consequence of their distinct mineralogy and chemistry. KEYWORDS: German and Portuguese tiles, degradation, tropical weathering, Amazon region Mineralogia e química de azulejos Alemães e Portugueses de prédios históricos na região Amazônica e sua susceptibilidade natural à degradação tropical (intemperismo) RESUMOAs proeminentes edificações da cidade de Belém foram revestidas durante o século 19 com azulejos produzidos em Portugal e Alemanha que já apresentam distintos graus de degradação. O Palacete Pinho é uma das mais importantes destas edificações e foi selecionado para se investigar a ação do clima tropical amazônico sobre a degradação destes azulejos. Para atingir estes objetivos mapearam-se os azulejos desta edificação visando identificar as modificações de origem orgânica e inorgânica e coletas de amostras para análises. Os minerais foram determinados por DRX, a composição química por métodos clássicos úmidos e MEV/SED e os micro-organismos por microscopia. Os resultados obtidos mostram que os azulejos Portugueses e Alemães são distintos entre si. Enquanto o biscoito é composto de SiO 2 e Al 2 O 3 , CaO foi encontrado apenas nos Portugueses. Os baixos conteúdos de Na 2 O e K 2 ...

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Microbial diversity in biodeteriorated Greek historical documents dating back to the 19th and 20th century: A case study

et al. 2018

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Paper documents in archives, libraries, and museums often undergo biodeterioration by microorganisms. Fungi and less often bacteria have been described to advance paper staining, so called “foxing” and degradation of paper substrates. In this study, for the first time, the fungal and bacterial diversity in biodeteriorated paper documents of Hellenic General State Archives dating back to the 19th and 20th century has been assessed by culture‐dependent and independent methods. The internally transcribed spacer (ITS) region and 16S rRNA gene were amplified by PCR from fungal and bacterial isolates and amplicons were sequenced. Sequence analysis and phylogeny revealed fungal phylotypes like Penicillium sp., Cladosporium sp., Penicillium citrinum, Alternaria infectoria, Alternaria alternata, Epicoccum nigrum, and Penicillium chrysogenum which are often implicated in paper deterioration. Bacterial phylotypes closely related to known biodeteriogenic bacteria such as Bacillus spp., Micrococcus spp., Kocuria sp. in accordance with previous studies were characterized. Among the fungal phylotypes described in this study are included well‐known allergens such as Penicillium spp., Alternaria spp., and Cladosporium spp. that impose a serious health threat on staff members and scholars. Furthermore, fungal isolates such as Chalastospora gossypii and Trametes ochracea have been identified and implicated in biodeterioration of historical paper manuscripts in this study for the first time. Certain new or less known fungi and bacteria implicated in paper degradation were retrieved, indicating that particular ambient conditions, substrate chemistry, or even location might influence the composition of colonizing microbiota.

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Biofouling and biodeterioration in materials stored at the Historical Archive of the Museum of La Plata, Argentine and at the National Archive of the Republic of Cuba

Cited by 79 publications

References 14 publications

Análisis De La Micobiota Existente en El Ambiente Interior De La Mapoteca Del Archivo Nacional De La República De Cuba

Análisis De La Micobiota Existente en El Ambiente Interior De La Mapoteca Del Archivo Nacional De La República De Cuba

The mineralogy and chemistry of the German and Portuguese tiles used to face a historic building in the Amazon region and their natural susceptibility to tropical weathering

Microbial diversity in biodeteriorated Greek historical documents dating back to the 19th and 20th century: A case study

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