Effective biocide to prevent microbiological contamination during PEG impregnation of wet archaeological iron-wood artefacts

Rakotonirainy, Malalanirina S; Caillat, Loïc; Héraud, Cécile; Memet, Jean-Bernard; Trần, Quang Kiên

doi:10.1016/j.culher.2007.01.005

Cited by 12 publications

(4 citation statements)

References 13 publications

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“…Laser Induced Breakdown Spectroscopy (LIBS) is a minimally invasive technique which does not require sampling and allows in situ analysis [18,19], that has been used to determine the material composition [20][21][22][23][24][25][26] or stratigraphic sequence of artworks [27]. These characteristics make LIBS the ideal technique to achieve this purpose, compared with techniques such as scanning electron microscopy coupled to an X-ray dispersive energy detector (SEM-EDX) [28,29].…”

Section: Research Aimsmentioning

confidence: 99%

Evaluation of the applicability of nano-biocide treatments on limestones used in cultural heritage

Becerra

Mateo

Ortiz

et al. 2019

Journal of Cultural Heritage

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Section: Research Aimsmentioning

confidence: 99%

Evaluation of the applicability of nano-biocide treatments on limestones used in cultural heritage

Becerra

Mateo

Ortiz

et al. 2019

Journal of Cultural Heritage

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“…ATP biomonitoring is widely used in the food processing industry for the detection of microbial contamination [ 52 , 53 , 54 ], in the healthcare sector to monitor the cleaning practices [ 55 , 56 ] and the microbiological quality of the water [ 57 , 58 ]. The quantification of ATP has also been applied in the field of the conservation of cultural heritage (stone monuments, paper, and textile) to survey the biological contamination and to evaluate the efficacy of biocidal treatments [ 59 , 60 , 61 , 62 , 63 , 64 , 65 ].…”

Section: Introductionmentioning

confidence: 99%

Essential Oils as Alternative Biocides for the Preservation of Waterlogged Archaeological Wood

et al. 2020

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Waterlogged archaeological wood is exposed to a high risk of biological degradation during the post-excavation phases of storage and restoration. For this reason, often biocides must be used to preserve wooden remains. In the present work three essential oils (cinnamon, wild thyme, and common thyme) were tested as possible alternative biocides to use in the preservation of waterlogged archaeological wood. The oils were first tested in vitro to establish the minimum inhibitory concentration (MIC) and to evaluate the biocidal activity on selected fungal strains. Then, the established MIC was applied on waterlogged archaeological wood samples and during an actual restoration treatment. The effectiveness of the oils was evaluated through cultural analyses, ATP quantification, and next-generation sequencing. The results showed that the oils caused a significant decrease in the vitality of fungal mycelia grown in vitro and of the microbiota present in treated wood and storage water. Furthermore, an influence on the composition of the bacterial communities of treated wood samples was observed. Although further tests are needed to evaluate interferences with the materials used during restoration procedures, essential oils could be considered as a possible alternative to the currently used biocide.

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“…For instance, in the case of the Vasa ship (Stockholm, Sweden), the oxidation of sulfur and iron compounds in the wood led to the formation of sulfuric acid and sulfate, accelerating chemical corrosion and reducing the compressive strength of some wood by up to 50% (Hocker et al, 2012; Ljungdahl & Berglund, 2007; Svedstrom et al, 2012). Moreover, PEG lacks natural antimicrobial properties and must be supplemented with antimicrobial agents, such as dialdehyde based, sodium orthophenyl phenoate based, or isothiazolinone‐based product (Rakotonirainy et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Preparation of bacterial cellulose for xylitol‐reinforced waterlogged wood

Hu,

Wang,

Liu

et al. 2024

Archaeometry

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Reinforcement is a critical aspect in the preservation of waterlogged wooden artifacts to ensure their long‐term stability. In this study, we investigated the use of bacterial cellulose compounded with xylitol as a reinforcement material for simulated waterlogged wooden artifacts at varying concentrations. Evaluation of the reinforcement effects was based on indicators such as antishrinking efficacy, mechanical strength, and microscopic morphology. Our findings revealed that bacterial cellulose alone had limited effectiveness but showed enhanced reinforcement when mixed with xylitol. Optimized conditions resulted in remarkable improvements in bending strength (94.5 MPa) and deformation (20 mm) of the reinforced wood. This study offers novel insights and a scientific foundation for the reinforcement of waterlogged wooden artifacts, with potential implications for their preservation in cultural heritage conservation practices.

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Effective biocide to prevent microbiological contamination during PEG impregnation of wet archaeological iron-wood artefacts

Cited by 12 publications

References 13 publications

Evaluation of the applicability of nano-biocide treatments on limestones used in cultural heritage

Evaluation of the applicability of nano-biocide treatments on limestones used in cultural heritage

Essential Oils as Alternative Biocides for the Preservation of Waterlogged Archaeological Wood

Preparation of bacterial cellulose for xylitol‐reinforced waterlogged wood

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