Abstract
The aim of this study was to explore the use of biotechnologies in the restoration of wall paintings and stuccos which often show a great complexity regarding constitutive materials and conservative conditions. ‘Biological methods’ were compared to traditional methods, focusing on restoring the cohesion of the superficial layers (bioconsolidation) and the removal of sulphates (biocleaning) often found on the frescoes as decay products. The experimentation took place as part of a graduate thesis and was divided in two stages: the first was spent in the laboratory working on samples of painted plaster and the second was spent in situ, on the frescoes and stuccos in the Church of Santa Pudenziana in Rome, Italy. Application of the products was followed by a campaign of investigations aimed at determining the efficacy, and the advantages and disadvantages of these methods compared to conventional ones.
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