Microbial deterioration of gelatin emulsion photographs: Differences of susceptibility between black and white and colour materials

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Abstract

Microbial deterioration is a common problem in photographic collections, and has been considered a major cause of deterioration. However, few studies have been carried out on this topic, and most of the literature concerns biodeterioration of archival documents in general, including both micro- and macroorganisms. There have been no detailed studies on the interactions between microorganisms, environment, and the composition of photographic material. This study focuses on fungal deterioration of gelatin emulsion photographs. It was part of a study of three collections in Lisbon, Portugal. The first part is quantitative research on the fungal contamination of the Horacio Novais collection, and the second involves induced contamination of experiments on gelatin emulsion photographs. At the end these data are analysed, taking into account the hypothesis that colour materials are more susceptible to fungal deterioration than are black and white ones. This hypothesis is based on the observations of professionals working with photograph collections who report that, at least in plastic base supports (negatives and slides), colour materials are frequently more contaminated than the black and white ones. An overall look at the results seems to indicate a higher susceptibility of the colour chromogenic photographic materials to fungal colonization compared to the black and white materials. However, this hypothesis could not be absolutely confirmed by this study. (C) 2009 Elsevier Ltd. All rights reserved.
Original languageUnknown
Pages (from-to)496-502
JournalInternational Biodeterioration & Biodegradation
Volume63
Issue number4
DOIs
Publication statusPublished - 1 Jan 2009

Keywords

    Cite this

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    title = "Microbial deterioration of gelatin emulsion photographs: Differences of susceptibility between black and white and colour materials",
    abstract = "Microbial deterioration is a common problem in photographic collections, and has been considered a major cause of deterioration. However, few studies have been carried out on this topic, and most of the literature concerns biodeterioration of archival documents in general, including both micro- and macroorganisms. There have been no detailed studies on the interactions between microorganisms, environment, and the composition of photographic material. This study focuses on fungal deterioration of gelatin emulsion photographs. It was part of a study of three collections in Lisbon, Portugal. The first part is quantitative research on the fungal contamination of the Horacio Novais collection, and the second involves induced contamination of experiments on gelatin emulsion photographs. At the end these data are analysed, taking into account the hypothesis that colour materials are more susceptible to fungal deterioration than are black and white ones. This hypothesis is based on the observations of professionals working with photograph collections who report that, at least in plastic base supports (negatives and slides), colour materials are frequently more contaminated than the black and white ones. An overall look at the results seems to indicate a higher susceptibility of the colour chromogenic photographic materials to fungal colonization compared to the black and white materials. However, this hypothesis could not be absolutely confirmed by this study. (C) 2009 Elsevier Ltd. All rights reserved.",
    keywords = "films, fungal, bacteria, biodegradation, media, contamination, Fungi, Gelatin, emulsion, Photographs, growth, Induced, cinematographic",
    author = "Sampaio, {Jos{\'e} Paulo Nunes de Sousa}",
    year = "2009",
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    doi = "10.1016/j.ibiod.2008.10.011",
    language = "Unknown",
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    pages = "496--502",
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    TY - JOUR

    T1 - Microbial deterioration of gelatin emulsion photographs: Differences of susceptibility between black and white and colour materials

    AU - Sampaio, José Paulo Nunes de Sousa

    PY - 2009/1/1

    Y1 - 2009/1/1

    N2 - Microbial deterioration is a common problem in photographic collections, and has been considered a major cause of deterioration. However, few studies have been carried out on this topic, and most of the literature concerns biodeterioration of archival documents in general, including both micro- and macroorganisms. There have been no detailed studies on the interactions between microorganisms, environment, and the composition of photographic material. This study focuses on fungal deterioration of gelatin emulsion photographs. It was part of a study of three collections in Lisbon, Portugal. The first part is quantitative research on the fungal contamination of the Horacio Novais collection, and the second involves induced contamination of experiments on gelatin emulsion photographs. At the end these data are analysed, taking into account the hypothesis that colour materials are more susceptible to fungal deterioration than are black and white ones. This hypothesis is based on the observations of professionals working with photograph collections who report that, at least in plastic base supports (negatives and slides), colour materials are frequently more contaminated than the black and white ones. An overall look at the results seems to indicate a higher susceptibility of the colour chromogenic photographic materials to fungal colonization compared to the black and white materials. However, this hypothesis could not be absolutely confirmed by this study. (C) 2009 Elsevier Ltd. All rights reserved.

    AB - Microbial deterioration is a common problem in photographic collections, and has been considered a major cause of deterioration. However, few studies have been carried out on this topic, and most of the literature concerns biodeterioration of archival documents in general, including both micro- and macroorganisms. There have been no detailed studies on the interactions between microorganisms, environment, and the composition of photographic material. This study focuses on fungal deterioration of gelatin emulsion photographs. It was part of a study of three collections in Lisbon, Portugal. The first part is quantitative research on the fungal contamination of the Horacio Novais collection, and the second involves induced contamination of experiments on gelatin emulsion photographs. At the end these data are analysed, taking into account the hypothesis that colour materials are more susceptible to fungal deterioration than are black and white ones. This hypothesis is based on the observations of professionals working with photograph collections who report that, at least in plastic base supports (negatives and slides), colour materials are frequently more contaminated than the black and white ones. An overall look at the results seems to indicate a higher susceptibility of the colour chromogenic photographic materials to fungal colonization compared to the black and white materials. However, this hypothesis could not be absolutely confirmed by this study. (C) 2009 Elsevier Ltd. All rights reserved.

    KW - films

    KW - fungal

    KW - bacteria

    KW - biodegradation

    KW - media

    KW - contamination

    KW - Fungi

    KW - Gelatin

    KW - emulsion

    KW - Photographs

    KW - growth

    KW - Induced

    KW - cinematographic

    U2 - 10.1016/j.ibiod.2008.10.011

    DO - 10.1016/j.ibiod.2008.10.011

    M3 - Article

    VL - 63

    SP - 496

    EP - 502

    JO - International Biodeterioration & Biodegradation

    JF - International Biodeterioration & Biodegradation

    SN - 0964-8305

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    ER -