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Decontamination of Cuban oysters using irradiation

Abstract

Oysters (Crassostrea virginica) collected on the Cuban coast near Havana were examined for contamination with Vibrio cholerae and other potentially pathogenic Vibrio species. The strains thus isolated were characterized and identified to species following standard methods, and their radiation resistance (D{sub 10}) was determined in pure culture. The Vibrio species most often isolated were V. cholerae, V. parahaemolyticus and V. Alginolyticus. Representative cultures from each species were later used to inoculate shucked oysters to determine the optimal radiation dose that would ensure elimination of 10{sup 8} colony forming units (CFU)/g. The highest proportion of isolates were identified as Vibrio parahaemolyticus and V. algynoliticus. Non-O1 strains of Vibrio cholerae were isolated from 50% of samples, but no V. cholerae O1 was identified. D{sub 10} values calculated for the various strains were low in relation to those in the literature. The radiation dose for decontaminating heavily inoculated (10{sup 8} CFU/g) oysters was 1.2 kGy. (author)
Authors:
Cisneros Despaigne, E; Leyva Castillo, V; Martinez, L L; Lara Ortiz, C; [1]  Castillo Rodriguez, E [2] 
  1. Instituto de Nutricion e Higiene de los Alimentos (Cuba)
  2. Centro Nacional de Salud Animal (Cuba)
Publication Date:
Apr 01, 2001
Product Type:
Technical Report
Report Number:
IAEA-TECDOC-1213
Reference Number:
EDB-01:048972
Resource Relation:
Other Information: Refs, 3 tabs; PBD: Apr 2001; Related Information: In: Irradiation to control Vibrio infection from consumption of raw seafood and fresh produce. Results of a co-ordinated research project, 82 pages.
Subject:
60 APPLIED LIFE SCIENCES; BACTERIA; BACTERIAL DISEASES; CHOLERA; IRRADIATION; OYSTERS; RADIATION DOSES; RADICIDATION; RADIOSENSITIVITY; RADURIZATION
OSTI ID:
20161856
Research Organizations:
Pan American Health Organization, Washington, DC (United States); Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 1011-4289; TRN: XA0100962021882
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 7-11
Announcement Date:
Jun 20, 2001

Citation Formats

Cisneros Despaigne, E, Leyva Castillo, V, Martinez, L L, Lara Ortiz, C, and Castillo Rodriguez, E. Decontamination of Cuban oysters using irradiation. IAEA: N. p., 2001. Web.
Cisneros Despaigne, E, Leyva Castillo, V, Martinez, L L, Lara Ortiz, C, & Castillo Rodriguez, E. Decontamination of Cuban oysters using irradiation. IAEA.
Cisneros Despaigne, E, Leyva Castillo, V, Martinez, L L, Lara Ortiz, C, and Castillo Rodriguez, E. 2001. "Decontamination of Cuban oysters using irradiation." IAEA.
@misc{etde_20161856,
title = {Decontamination of Cuban oysters using irradiation}
author = {Cisneros Despaigne, E, Leyva Castillo, V, Martinez, L L, Lara Ortiz, C, and Castillo Rodriguez, E}
abstractNote = {Oysters (Crassostrea virginica) collected on the Cuban coast near Havana were examined for contamination with Vibrio cholerae and other potentially pathogenic Vibrio species. The strains thus isolated were characterized and identified to species following standard methods, and their radiation resistance (D{sub 10}) was determined in pure culture. The Vibrio species most often isolated were V. cholerae, V. parahaemolyticus and V. Alginolyticus. Representative cultures from each species were later used to inoculate shucked oysters to determine the optimal radiation dose that would ensure elimination of 10{sup 8} colony forming units (CFU)/g. The highest proportion of isolates were identified as Vibrio parahaemolyticus and V. algynoliticus. Non-O1 strains of Vibrio cholerae were isolated from 50% of samples, but no V. cholerae O1 was identified. D{sub 10} values calculated for the various strains were low in relation to those in the literature. The radiation dose for decontaminating heavily inoculated (10{sup 8} CFU/g) oysters was 1.2 kGy. (author)}
place = {IAEA}
year = {2001}
month = {Apr}
}