Microbial Contamination of Photographic and Cinematographic Materials in Archival Funds in the Czech Republic

In this study we investigated the microbial contamination of 126 samples of photographic and cinematographic materials from 10 archival funds in the Czech Republic. Microorganisms were isolated from the light-sensitive layer by swabbing it with a polyurethane sponge. Microbial isolates were identifi...

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Bibliographic Details
Published in:Microorganisms (Basel) 2022-01, Vol.10 (1), p.155
Main Authors: Purkrtova, Sabina, Savicka, Dana, Kadava, Jana, Sykorova, Hana, Kovacova, Nikola, Kalisova, Dominika, Nesporova, Tereza, Novakova, Martina, Masek Benetkova, Barbora, Koukalova, Lucie, Boryskova, Stepanka, Hnulikova, Blanka, Durovic, Michal, Demnerova, Katerina
Format: Article
Language:English
Subjects:
Acetic acid
Albumen
archival funds
Archives & records
Bacteria
Barium hydroxide
Cellulose
Cellulose acetate
Cellulose nitrate
cinematographic materials
Cinematography
Contamination
Czech Republic
Disinfection & disinfectants
Funds
fungal contamination
Fungi
Gram-positive bacteria
Humidity
Impact analysis
Light
Methods
Microbial contamination
Microorganisms
Nitrates
Phenotypes
photographic materials
Polyethylene
Polymers
Polyurethane
Polyurethane resins
Radiation
Silver
Vinegar
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Summary:In this study we investigated the microbial contamination of 126 samples of photographic and cinematographic materials from 10 archival funds in the Czech Republic. Microorganisms were isolated from the light-sensitive layer by swabbing it with a polyurethane sponge. Microbial isolates were identified by MALDI-TOF MS (bacteria) or by phenotype testing and microscopy (fungi). Bacterial contamination was more abundant and more diverse than fungal contamination, and both were significantly associated with archives. The most frequently isolated fungal genera were , , and The most frequently isolated bacteria were Gram-positive genera such as , , , and . This bacterial and fungal diversity suggests that air is the main vehicle of contamination. We also analysed the impact of the type of material used for the carrier (paper, baryta paper, cellulose acetate and nitrate or glass) or the light-sensitive layer (albumen, gelatine, collodion and other) on the level and diversity of microbial contamination. Carriers such as polyester and cellulose nitrate may have a negative impact on bacterial contamination, while paper and baryta paper may have a partially positive impact on both fungal and bacterial contamination.
ISSN:2076-2607
2076-2607
DOI:10.3390/microorganisms10010155