Natural substances as biocides in the fungi treatment on artistic products to protect the environment and health of restoration workers
Casorri, Laura | Masciarelli, Eva | Ficociello, Barbara | Ietto, Federica | Incoronato, Federica | Di Luigi, Marco | Beni, Claudio | Pacioni, Giovanni
Cultural heritage artefacts, such as stone works, books, manuscripts, and parchments, are subjected to severe biodeterioration processes over time caused by fungi, algae, lichens, and complex communities of microbial biofilms. Fungal contaminations are widespread as active or dormant spores which are present in the air and on objects and can lead to irreversible biodeterioration processes. Highly toxic and hardly biodegradable compounds are commonly used in cultural heritage conservation and restoration practices, which can be harmful even to the treated materials. Therefore, sector operators may be exposed to both biological and chemical risks, and often the failure to use adequate protective equipment increases the exposure risk. The interest of many researchers has been recently orienting, in this sector also, towards the use of natural products, as a valid alternative both for operators' health and environmental protection. This review aims to provide an overview of the biological and chemical risks associated with the treatment of fungal biodeterioration of artistic works and suggests the use of natural substances as a possible alternative to chemical synthetic products for the safety of restoration operators.
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