The Grande Albergo Ausonia & Hungaria (Venice Lido, Italy) has an Art Nouveau polychrome ceramic coating on its façade, which was restored in 2007. Soon after the conservation treatment, many tiles of the façade decoration showed coloured alterations putatively attributed to the presence of microbial communities. To confirm the presence of the biological deposit and the stratigraphy of the Hungaria tiles, stereomicroscope, optical and environmental scanning electron microscope observations were made. The characterisation of the microbial community was performed using a PCR–DGGE approach. This study reported the first use of a culture-independent approach to identify the total community present in biodeteriorated artistic tiles. The case study examined here reveals that the coloured alterations on the tiles were mainly due to the presence of cryptoendolithic cyanobacteria. In addition, we proved that the microflora present on the tiles was generally greatly influenced by the environment of the Hungaria hotel. We found several microorganisms related to the alkaline environment, which is in the range of the tile pH, and related to the aquatic environment, the presence of the acrylic resin Paraloid B72® used during the 2007 treatment and the pollutants of the Venice lagoon.

Microbial Deterioration of Artistic Tiles from the Façade of the Grande Albergo Ausonia & Hungaria (Venice, Italy) / L. Giacomucci, R. Bertoncello, O. Salvadori, I. Martini, M. Favaro, F. Villa, C. Sorlini, F. Cappitelli. - In: MICROBIAL ECOLOGY. - ISSN 0095-3628. - 12:2(2011 Aug), pp. 287-298.

Microbial Deterioration of Artistic Tiles from the Façade of the Grande Albergo Ausonia & Hungaria (Venice, Italy)

L. Giacomucci
Primo
;
F. Villa;C. Sorlini
Penultimo
;
F. Cappitelli
Ultimo
2011

Abstract

The Grande Albergo Ausonia & Hungaria (Venice Lido, Italy) has an Art Nouveau polychrome ceramic coating on its façade, which was restored in 2007. Soon after the conservation treatment, many tiles of the façade decoration showed coloured alterations putatively attributed to the presence of microbial communities. To confirm the presence of the biological deposit and the stratigraphy of the Hungaria tiles, stereomicroscope, optical and environmental scanning electron microscope observations were made. The characterisation of the microbial community was performed using a PCR–DGGE approach. This study reported the first use of a culture-independent approach to identify the total community present in biodeteriorated artistic tiles. The case study examined here reveals that the coloured alterations on the tiles were mainly due to the presence of cryptoendolithic cyanobacteria. In addition, we proved that the microflora present on the tiles was generally greatly influenced by the environment of the Hungaria hotel. We found several microorganisms related to the alkaline environment, which is in the range of the tile pH, and related to the aquatic environment, the presence of the acrylic resin Paraloid B72® used during the 2007 treatment and the pollutants of the Venice lagoon.
English
artistic tiles ; cyanobacteria ; coloured alterations ; endolithic growth
Settore AGR/16 - Microbiologia Agraria
Articolo
Sì, ma tipo non specificato
ago-2011
SpringlerLink
12
2
287
298
Pubblicato
Periodico con rilevanza internazionale
http://www.springerlink.com/content/82j1p773w75q2n57/
info:eu-repo/semantics/article
Microbial Deterioration of Artistic Tiles from the Façade of the Grande Albergo Ausonia & Hungaria (Venice, Italy) / L. Giacomucci, R. Bertoncello, O. Salvadori, I. Martini, M. Favaro, F. Villa, C. Sorlini, F. Cappitelli. - In: MICROBIAL ECOLOGY. - ISSN 0095-3628. - 12:2(2011 Aug), pp. 287-298.
none
Prodotti della ricerca::01 - Articolo su periodico
8
262
Article (author)
si
L. Giacomucci, R. Bertoncello, O. Salvadori, I. Martini, M. Favaro, F. Villa, C. Sorlini, F. Cappitelli
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/160416
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