Protozoal contamination of water used in Thai frozen food industry.
Southeast Asian J Trop Med Public Health
;
2005 ; 36 Suppl 4(): 41-5
Artigo
em Inglês
| IMSEAR
| ID: sea-36110
ABSTRACT
This study evaluated the prevalence of contamination of water that was used for food preparation. Since protozoal cysts can be found in small numbers in water, 1,000 liters of either untreated or treated water were filtered through activated carbon block filters (1 microm nominal porosity). Identification of protozoa was performed using specific monoclonal antibodies against Giardia and Cryptosporidium parasites followed by fluorescence microscopy. Twelve of 20 untreated water samples (60%) were found to be contaminated by Giardia cysts, with an average of 53.33 cysts/1,000 liters (geometric mean 39.43), whilst 7 samples (35%) were contaminated by Cryptosporidium oocysts, with an average of 28.57 oocysts/1,000 liters (geometric mean 26.92). Three samples of untreated water (15%) were positive for both organisms. In contrast, none of the treated water samples were contaminated.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Tailândia
/
Poluição da Água
/
Humanos
/
Contaminação de Alimentos
/
Indústria Alimentícia
/
Cryptosporidium
/
Eucariotos
/
Alimentos Congelados
/
Giardia
/
Animais
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Southeast Asian J Trop Med Public Health
Ano de publicação:
2005
Tipo de documento:
Artigo
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