Assessment of indoor air environment of a Nigerian museum library and its biodeteriorated books using culture-dependent and –independent techniques

Okpalanozie, Ogechukwu E.; Adebusoye, Sunday A.; Troiano, Federica; Cattò, Cristina; Ilori, Matthew O.; Cappitelli, Francesca

doi:10.1016/j.ibiod.2018.03.003

Cited by 37 publications

(20 citation statements)

References 92 publications

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“…Finally, the genus Stenotrophomonas, with the species S. rhizophila and S. maltophilia, was only present in L8 with a high relative abundance. It is important to remark that species of this genus have been identified as colonizers and potential spoilers of oil paintings on canvas support (López-Miras et al, 2013), tempera paintings (Zhgun et al, 2020) as well as ancient paper manuscripts (Michaelsen et al, 2010) and book collections (Kraková et al, 2017;Okpalanozie et al, 2018). In addition, Stenotrophomonas sp.…”

Section: Bacteriamentioning

confidence: 99%

“…The genus Bacillus was present exclusively in L3, with the dominant species B. mycoides and B. thuringiensis. Species belonging to Bacillus and Staphylococcus have been previously identified as the main bacterial species colonizing paper archival materials (Michaelsen et al, 2010;Kraková et al, 2012Kraková et al, , 2017Karakasidou et al, 2018;Okpalanozie et al, 2018).…”

Section: Bacteriamentioning

confidence: 99%

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The Microbiome of Leonardo da Vinci’s Drawings: A Bio-Archive of Their History

Piñar

Sclocchi²,

Pinzari³

et al. 2020

Front. Microbiol.

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Seven emblematic Leonardo da Vinci’s drawings were investigated through third generation sequencing technology (Nanopore). In addition, SEM analyses were carried out to acquire photographic documentation and to infer the nature of the micro-objects removed from the surface of the drawings. The Nanopore generated microbiomes can be used as a “bio-archive” of the drawings, offering a kind of fingerprint for current and future biological comparisons. This information might help to create a biological catalog of the drawings (cataloging), a microbiome-fingerprint for each single analyzed drawing, as a reference dataset for future studies (monitoring) and last but not least a bio-archive of the history of each single object (added value). Results showed a relatively high contamination with human DNA and a surprising dominance of bacteria over fungi. However, it was possible to identify typical bacteria of the human microbiome, which are mere contaminants introduced by handling of the drawings as well as other microorganisms that seem to have been introduced through vectors, such as insects and their droppings, visible through the SEM analyses. All drawings showed very specific bio-archives, but a core microbiome of bacteria and fungi that are repeatedly found in this type of material as true degraders were identified, such as members of the phyla Proteobacteria, Actinobacteria, and Firmicutes among bacteria, and fungi belonging to the classes Sordariomycetes and Eurotiomycetes. In addition, some similarities were observed that could be influenced by their geographical location (Rome or Turin), indicating the influence of this factor and denoting the importance of environmental and storage conditions on the specific microbiomes.

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Section: Bacteriamentioning

confidence: 99%

Section: Bacteriamentioning

confidence: 99%

The Microbiome of Leonardo da Vinci’s Drawings: A Bio-Archive of Their History

Piñar

Sclocchi²,

Pinzari³

et al. 2020

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…The reason why locality played an important role is probably due to the fact that each archive has different storage conditions, such as temperature and humidity (Table 1). These storage conditions are also related to the presence of fungi in the air, which has been identified as one of the main factors affecting the biodeterioration of cultural heritage objects [32]. It is reported that 30 to 50% relative humidity is ideal for preventing fungal growth [33].…”

Section: Factors Influencing the Structure Of Fungal Communitiesmentioning

confidence: 99%

“…Such findings might reflect a link between air contamination and the contamination of stored audio-visual materials and, therefore, suggests the air in archives as the main source of fungal contamination of audio-visual materials. Since the fungal spores in the air were previously identified as key factors affecting the biodeterioration of various archival materials [5,32], the potential air contamination should be considered prior to the protection of cultural heritage.…”

Section: Fungal Relative Abundance In the Air Of Archivesmentioning

confidence: 99%

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Factors Influencing the Fungal Diversity on Audio–Visual Materials

et al. 2021

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The biodeterioration of audio–visual materials is a huge problem, as it can cause incalculable losses. To preserve these cultural heritage objects for future generations, it is necessary to determine the main agents of biodeterioration. This study focuses on identifying fungi, both from the air and smears from photographs and cinematographic films that differ in the type of carrier and binder, using high-throughput sequencing approaches. The alpha diversity measures of communities present on all types of carriers were compared, and a significant difference between cellulose acetate and baryta paper was observed. Next, the locality, type of carrier, and audio–visual material seem to affect the structure of fungal communities. Additionally, a link between the occurrence of the most abundant classes and species on audio–visual materials and air contamination in the archives was proven. In both cases, the most abundant classes were Agariomycetes, Dothideomycetes, and Eurotiomycetes, and approximately half of the 50 most abundant species detected on the audio–visual materials and in the air were identical.

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Assessment of fungal aerosols in a public library with natural ventilation

et al. 2022

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Fungal aerosols deteriorate library collections and can impact human health, mainly via respiratory diseases. Their spread is influenced by factors such as temperature and relative humidity. This study aims to assess the concentration of fungal aerosols in the interior environment of the Popular Library of Gaira in the District of Santa Marta, Colombia, using a two-stage cascade impactor utilizing Sabouraud dextrose agar on Petri dishes for the collection of samples. The sampler was positioned at 1.5 m above ground level, operated with a flow rate of 28.3 l/min for 4 min and thermo-hygrometric conditions were also recorded. Concentrations in the air of up to 1197.0 CFU/m3 were reported, with a mean value close to 150 CFU/m3. Higher values during the morning samples were noted. Seven genera of fungi were found, Aspergillus and Curvularia were the most abundant. The temperature was between 30.80 and 33.51 °C, and the relative humidity was between 62.61 and 64.80%. Statistical analysis showed a significant correlation between the fungal aerosol concentration and relative humidity, where an increase of 10% in moisture could double the fungal aerosol concentration. We concluded that potentially favorable conditions exist indoors for the growth and survival of the following fungi: Aspergillus, Penicillium, Cladosporium, and Curvularia, and to a lesser extent for Chrysonilia, Cunninghamella, and Paecylomices. Relative humidity was seen to be the factor that affects the concentration of aerosols fungal in the library most significantly.

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Assessment of indoor air environment of a Nigerian museum library and its biodeteriorated books using culture-dependent and –independent techniques

Cited by 37 publications

References 92 publications

The Microbiome of Leonardo da Vinci’s Drawings: A Bio-Archive of Their History

The Microbiome of Leonardo da Vinci’s Drawings: A Bio-Archive of Their History

Factors Influencing the Fungal Diversity on Audio–Visual Materials

Assessment of fungal aerosols in a public library with natural ventilation

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