Diversity and biodeteriorative potential of bacterial isolates from deteriorated modern combined-technique canvas painting

Pavić, Aleksandar; Ilić-Tomič, Tatjana; Pačevski, Aleksandar; Nedeljković, Tatjana; Vasiljević, Branka; Morić, Ivana

doi:10.1016/j.ibiod.2014.11.012

Cited by 32 publications

(26 citation statements)

References 42 publications

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“…These microorganisms revealed the ability to proliferate at high concentrations of these pigments, remaining metabolically active even after 30 days in contact with these pigments, which evidences their potential capacity to colonize and to induce alteration on mural paintings. 27,29,30 Cell viability assays corroborate the indications obtained by colorimetric and spectral monitorization, where the chromatic degradability of fungi and bacteria was confirmed, as well as their ability to proliferate in the presence of these pigments, whose metabolic activity remains active even under reduced nutritional conditions.…”

Section: Resultssupporting

confidence: 76%

“…The spectrophotometric analysis revealed that these microorganisms possess ability to promote pigment alteration in culture. 27 However, the bacterial strains (particularly Bacillus sp.2) tested induce less colour alterations than the fungi and show higher alteration capacity for yellow F I G U R E 2 Raman spectra of simulation assays performed with yellow, red, and blue pigments inoculated with A-C, A. niger and D-F, Bacillus sp.2 ( : yellow ochre standard pigment; : red ochre standard pigment; : ultramarine blue standard pigment; : pigment inoculated with microorganism) pigments. This behavior was more evident with A. niger, which induced total discolouration of all the pigments, as shown by the CIELAB system ( Figure 1 and Table 1).…”

Section: Resultsmentioning

confidence: 99%

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Understanding the influence of microbial contamination on colour alteration of pigments used in wall paintings—The case of red and yellow ochres and ultramarine blue

Rosado

Falé

Gil

et al. 2019

Color Research & Application

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This article reports biocolonization assays carried out on yellow and red ochres and ultramarine blue pigments. These pigments have been most commonly used in traditional limewash of heritage buildings from southern Portugal (Alentejo) and, in the case of the yellow and red ochres, also in historical decorative wall paintings since Roman times. The research aim was to assess the potential role played by microorganisms in colour alterations observed in indoor and outdoor paint layers for conservation purposes.The assays accomplished several microorganisms previously isolated from degraded wall paintings with signs of biocontamination. The results show that apart from the clear physical stress induced in paint layers by the biometabolic activity, filamentous fungi, yeast, and bacteria are capable of inducing discoloration (in particular, the fungus Aspergillus niger). Raman analysis corroborates their active role in painting discolouration. This methodology, applied to bioprocesses, can be used as noninvasive methodology to signal microbial involvement.

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Section: Resultssupporting

confidence: 76%

Section: Resultsmentioning

confidence: 99%

Understanding the influence of microbial contamination on colour alteration of pigments used in wall paintings—The case of red and yellow ochres and ultramarine blue

Rosado

Falé

Gil

et al. 2019

Color Research & Application

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show abstract

“…Frequent contaminants of paintings, associated with biodegradation, often belong to one of the bacterial genus Pseudomonas, Bacillus, Alcaligenes, Flavobacterium, and Staphylococcus [4,[13][14][15]. The bacteria colonization can favor subsequent colonization by common fungi, including Aspergillus, Penicillium, Cladosporium, and Alternaria species [16,17], often associated with mechanical damages due to deep mycelia penetration and/or paint discoloration caused by their metabolic activities.…”

Section: Introductionmentioning

confidence: 99%

The Potential Use of Microorganisms as Restorative Agents: An Update

et al. 2019

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The biodeterioration process involves every type of Cultural Heritage item, including monuments, stoneworks, frescoes, and easel paintings. The accurate study of the microbial and fungal communities dwelling on artworks, and involved in their deterioration, is essential for the adoption of optimal prevention and conservation strategies. Conventional restorative methods, that usually involve chemical and physical technologies, present some disadvantages, including short-term and unsatisfactory effects, potential damage to the treated works, human toxicity, and environmental hazards. Research in the field of restoration has paved the way for innovative biological approaches, or ‘biorestoration’, in which microorganisms are not only considered as an eventual danger for artworks, but rather as potential tools for restoration. The present review describes the main aspects of the biodeterioration process and highlights the most relevant biorestoration approaches: bioconsolidation, biocleaning, biological control, and new promising bio-decontaminating compounds.

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“…The examples of SE microphotographs are shown in Figure 2. Figure 2a shows the morphology of the spore at the art picture [5]. Figure 2b displays desert rose gypsum crystals with porous spherical carbon particles which occur on the walls of the King Gate at Kalemegdan [6].…”

Section: Sem-eds Methods -Basic Principesmentioning

confidence: 99%

The application and limitations of the SEM-EDS method in food and textile technologies

Erić¹

2017

Adv Techol

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Compared to other methods of investigation, the scanning electron microscopyenergy dispersive spectrometry (SEM-EDS) method is significantly less frequently used in the study of the samples related to food and textile technologies. Food scientists most commonly use the SEM-EDS method to investigate the starch morphology of different plants as differences in the size and shape of starch granules may be attributed to the biological origin and physiology of the plant. In addition, these researchers manipulate the starch structure and control the interactions between starch and other food components to determine its effect on the rate of digestion. In textile technology, researchers use the SEM-EDS method to investigate contemporary antimicrobial textiles to assess their possible use in medical equipment as the means to avoid the spread of microbes. SEM-EDS method is often used for the purpose of biodeterioration in the study of historical textiles which have been colonized by microorganisms. However, the inability to analyze wet samples is the main limitation of the SEM-EDS method in the investigation of food samples. This limitation can be partially overcome by studying wet samples under low vacuum conditions, or by creating a non-conventional cross-section of fresh samples which, when covered with a gold layer, can be investigated under high vacuum conditions. Textile samples cannot be polished, which limits the use of this method in obtaining a quantitative chemical analyses. New possibilities of applying the SEM-EDS method in the investigation of food and textile samples should be considered because some limitations of this method can be partially exceeded.

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Diversity and biodeteriorative potential of bacterial isolates from deteriorated modern combined-technique canvas painting

Cited by 32 publications

References 42 publications

Understanding the influence of microbial contamination on colour alteration of pigments used in wall paintings—The case of red and yellow ochres and ultramarine blue

Understanding the influence of microbial contamination on colour alteration of pigments used in wall paintings—The case of red and yellow ochres and ultramarine blue

The Potential Use of Microorganisms as Restorative Agents: An Update

The application and limitations of the SEM-EDS method in food and textile technologies

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