The Capuchin Catacombs of Palermo contain over 1800 preserved bodies, spanning the 16th-20th centuries AD, many of which show serious evidence of biodeterioration. In order to protect these remains, an extensive microbiological and molecular investigation was recently performed. Samples were taken from skin, muscle, bone, hair, clothes and stuffing materials, as well as from the surrounding wall materials, many displaying rosy discoloration. In addition, air samples were taken to investigate the impact of this microbial contamination on the indoor air quality. Results showed that the mummies are heavily contaminated with moulds. In some areas of the crypt the fungal spores in the air reached more than 2000 spores/m3, classified as being of potential health risk to visitors. Molecular analysis showed complex microbial communities colonizing the mummies and the surrounding walls, consisting of bacteria, archaea and fungi. Halophilic microorganisms were dominant, being responsible for the rosy discoloration observed. Fungal sequences revealed pathogenic fungi related to the deterioration of the mummies.
Microbiological and molecular investigation in the capuchin catacombs of Palermo, Italy: Microbial deterioration risk and contamination of the indoor air
Piombino Mascali D.;
2013-01-01
Abstract
The Capuchin Catacombs of Palermo contain over 1800 preserved bodies, spanning the 16th-20th centuries AD, many of which show serious evidence of biodeterioration. In order to protect these remains, an extensive microbiological and molecular investigation was recently performed. Samples were taken from skin, muscle, bone, hair, clothes and stuffing materials, as well as from the surrounding wall materials, many displaying rosy discoloration. In addition, air samples were taken to investigate the impact of this microbial contamination on the indoor air quality. Results showed that the mummies are heavily contaminated with moulds. In some areas of the crypt the fungal spores in the air reached more than 2000 spores/m3, classified as being of potential health risk to visitors. Molecular analysis showed complex microbial communities colonizing the mummies and the surrounding walls, consisting of bacteria, archaea and fungi. Halophilic microorganisms were dominant, being responsible for the rosy discoloration observed. Fungal sequences revealed pathogenic fungi related to the deterioration of the mummies.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
