Improved methodology for bioremoval of black crusts on historical stone artworks by use of sulfate-reducing bacteria
Articolo
Data di Pubblicazione:
2006
Citazione:
Improved methodology for bioremoval of black crusts on historical stone artworks by use of sulfate-reducing bacteria / F. Cappitelli, E. Zanardini, G. Ranalli, E. Mello, D. Daffonchio, C. Sorlini. - In: APPLIED AND ENVIRONMENTAL MICROBIOLOGY. - ISSN 0099-2240. - 72:5(2006 May), pp. 3733-3737. [10.1128/AEM.72.5.3733-3737.2006]
Abstract:
An improved methodology to remove black crusts from stone by using Desulfovibrio vulgaris subsp. vulgaris ATCC 29579, a sulfate-reducing bacterium, is presented. The strain removed 98% of the sulfates of the crust in a 45-h treatment. Precipitation of black iron sulfide was avoided using filtration of a medium devoid of iron. Among three cell carriers, Carbogel proved to be superior to both sepiolite and Hydrobiogel-97, as it allowed an easy application of the bacteria, kept the system in a state where microbial activity was maintained, and allowed easy removal of the cells after the treatment.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
F. Cappitelli, E. Zanardini, G. Ranalli, E. Mello, D. Daffonchio, C. Sorlini
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