Microbiological and Chemical Evaluation of Helix Spp. Snails from Local and Non-EU Markets, Utilised as Food in Sardinia

With this study, 28 pools of snails of the genus , respectively (n=24) and (n=4) were analysed. They were taken from snail farming and stores. The snails were from Sardinia, other regions of Italy, and from abroad. All the samples were examined as pool looking for these microbiological target: spp.,...

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Bibliographic Details
Published in:Italian journal of food safety 2014-04, Vol.3 (2), p.1732
Main Authors: Corda, Arianna, Mara, Laura, Virgilio, Sebastiano, Pisanu, Margherita, Chessa, Giannina, Parisi, Antonio, Cogoni, Maria Paola
Format: Article
Language:English
Subjects:
atomic absorption spectrometry
cadmium
Clostridium perfringens
Escherichia coli O157
Food snails, Listeria monocytogenes, Toxic metals, Multilocus sequence typing, Microbiological evaluation
heavy metals
Helix aspersa
Hepatovirus A
Italy
Listeria monocytogenes
loci
markets
Norovirus
Salmonella
Sardinia
snails
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Summary:With this study, 28 pools of snails of the genus , respectively (n=24) and (n=4) were analysed. They were taken from snail farming and stores. The snails were from Sardinia, other regions of Italy, and from abroad. All the samples were examined as pool looking for these microbiological target: spp., , O157, , Norovirus and Hepatitis A Virus (HAV). In the same pools, the concentration of cadmium and lead by inductively coupled plasma mass spectrometry was also determined. The levels of these heavy metals were quite high, especially for cadmium. Two samples were positive for spp., while no sample was positive for O157, HAV and Norovirus. Two samples were positive for and 8 for . The microrganisms related to were identified using biochemical techniques, then serotyped and gene sequenced by multiple loci sequence typing technique. Furthermore, antimicrobial restistence was tested on the same samples.
ISSN:2239-7132
2239-7132
DOI:10.4081/ijfs.2014.1732