Advantages of Using Microbial Technology over Traditional Chemical Technology in Removal of Black Crusts from Stone Surfaces of Historical Monuments-Reference-Cited by-同舟云学术

Advantages of Using Microbial Technology over Traditional Chemical Technology in Removal of Black Crusts from Stone Surfaces of Historical Monuments

Published:2007-09 Issue:17 Volume:73 Page:5671-5675
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

Cappitelli Francesca¹,Toniolo Lucia²,Sansonetti Antonio³,Gulotta Davide²,Ranalli Giancarlo⁴,Zanardini Elisabetta⁵,Sorlini Claudia¹

Affiliation:

1. Dipartimento di Scienze e Tecnologie Alimentari e Microbiologiche, Università degli Studi di Milano, Milan

2. Dipartimento DCMIC Politecnico di Milano, Milan

3. CNR Istituto per la Conservazione e Valorizzazione dei Beni Culturali, Milan

4. Dipartimento di Scienze e Tecnologie Agro-Alimentari, Ambientali e Microbiologiche, Università degli Studi del Molise, Campobasso

5. Dipartimento di Scienze Chimiche e Ambientali, Università dell'Insubria, Como, Italy

Abstract

ABSTRACT This study compares two cleaning methods, one involving an ammonium carbonate-EDTA mixture and the other involving the sulfate-reducing bacterium Desulfovibrio vulgaris subsp. vulgaris ATCC 29579, for the removal of black crust (containing gypsum) on marble of the Milan Cathedral (Italy). In contrast to the chemical cleaning method, the biological procedure resulted in more homogeneous removal of the surface deposits and preserved the patina noble under the black crust. Whereas both of the treatments converted gypsum to calcite, allowing consolidation, the chemical treatment also formed undesirable sodium sulfate.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/AEM.00394-07

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