Research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of Puebla city, Mexico

Bacillus cereus is recognized as a pathogenic agent causative of food poisonings. There have been outbreaks associated with the consumption of rice contaminated with this bacterium. It is one of the few pathogens with capacity to spoil the food. An outbreak occurred in 1994, in the state of Puebla,...

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Main Authors: Tejeda-Trujillo, Fausto, Villagrán-Padilla, Claudy Lorena, León-Tello, Gloria, Tejeda-Hernández, Mónica Adriana
Format: Online
Language:eng
Published: Universidad Autónoma de Tamaulipas 2013
Online Access:https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/7
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spelling oai:ojs.pkp.sfu.ca:article-72015-09-30T10:10:01Z Research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of Puebla city, Mexico Investigación de Bacillus cereus y calidad sanitaria de muestras de arroz cocido recolectadas en diferentes establecimientos de la ciudad de Puebla Tejeda-Trujillo, Fausto Villagrán-Padilla, Claudy Lorena León-Tello, Gloria Tejeda-Hernández, Mónica Adriana Bacillus cereus cooked rice foodborne disease food poisoning emetic type of illness. Bacillus cereus arroz cocido enfermedad transmisible por alimentos intoxicación alimen­taria enfermedad emética. Bacillus cereus is recognized as a pathogenic agent causative of food poisonings. There have been outbreaks associated with the consumption of rice contaminated with this bacterium. It is one of the few pathogens with capacity to spoil the food. An outbreak occurred in 1994, in the state of Puebla, México, people infected claimed to have consumed “acid rice”. The sanitary quality was determined on 50 samples of cooked rice gathered in different establishments of the Puebla, City (homes, diners, tortilla shops and supermarkets). The count of B. cereus was realized on MYP agar (mannitol-egg yolk-polymyxin B agar), mesophilic aerobic bacteria and coliforms bacteria recounts were performed following the official methodology. Results obtained showed mesophilic aerobic bacteria high counts (> 106 CFU/g) in 22 % of the samples and in 44 % coliforms bacteria presence was demonstrated. In 10 % of the samples B. cereus was recuperated. Even with figures considered far below those of health risk, if stored in conditions of temperature abuse, as It often happens In the sampled sites contaminated rice still represents a health risk for the consumer. Bacillus cereus es reconocido como un agente patógeno causante de intoxicaciones alimentarias. Se han presentado brotes asociados al consumo de arroz contaminado con ésta bacteria. Es uno de los pocos patógenos con capacidad de deteriorar los alimentos. En un brote ocurrido en 1994, en el Estado de Puebla, las personas afectadas manifestaron haber consumido arroz ácido o agrio. Se determinó la calidad sanitaria de 50 muestras de arroz cocido recolectadas en diferentes establecimientos de la ciudad de Puebla (hogares, fondas, tortillerías y supermercados). El recuento de B. cereus se realizó en el agar MYP (manitol, yema de huevo polimixina), los recuentos de bacterias mesofílicas aerobias y bacterias coliformes totales, se realizaron siguiendo la metodología oficial vigente. Se obtuvieron recuentos elevados de bacterias mesofílicas aerobias (> 106 UFC/g) en el 22 % de las muestras, y en el 44 % se demostró la presencia de bacterias coliformes totales. En el 10 % de la muestras se recuperó B. cereus. Aun en cifras muy por debajo de las consideradas como un riesgo para la salud, si se almacena enCondiciones de abuso de temperatura, como suele ocurrir en los sitios muestreados el arroz contaminado puede representar un riesgo a la salud del consumidor. Universidad Autónoma de Tamaulipas 2013-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/7 10.29059/cienciauat.v8i1.7 CienciaUAT; Vol. 8 No. 1: July-December 2013; 48-51 CienciaUAT; Vol. 8 No. 1: Julio-Diciembre 2013; 48-51 2007-7858 2007-7521 eng https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/7/10
institution CIENCIA UAT
collection OJS
language eng
format Online
author Tejeda-Trujillo, Fausto
Villagrán-Padilla, Claudy Lorena
León-Tello, Gloria
Tejeda-Hernández, Mónica Adriana
spellingShingle Tejeda-Trujillo, Fausto
Villagrán-Padilla, Claudy Lorena
León-Tello, Gloria
Tejeda-Hernández, Mónica Adriana
Research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of Puebla city, Mexico
author_facet Tejeda-Trujillo, Fausto
Villagrán-Padilla, Claudy Lorena
León-Tello, Gloria
Tejeda-Hernández, Mónica Adriana
author_sort Tejeda-Trujillo, Fausto
title Research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of Puebla city, Mexico
title_short Research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of Puebla city, Mexico
title_full Research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of Puebla city, Mexico
title_fullStr Research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of Puebla city, Mexico
title_full_unstemmed Research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of Puebla city, Mexico
title_sort research of bacillus cereus and sanitary quality in samples of cooked rice gathered in different establishments of puebla city, mexico
description Bacillus cereus is recognized as a pathogenic agent causative of food poisonings. There have been outbreaks associated with the consumption of rice contaminated with this bacterium. It is one of the few pathogens with capacity to spoil the food. An outbreak occurred in 1994, in the state of Puebla, México, people infected claimed to have consumed “acid rice”. The sanitary quality was determined on 50 samples of cooked rice gathered in different establishments of the Puebla, City (homes, diners, tortilla shops and supermarkets). The count of B. cereus was realized on MYP agar (mannitol-egg yolk-polymyxin B agar), mesophilic aerobic bacteria and coliforms bacteria recounts were performed following the official methodology. Results obtained showed mesophilic aerobic bacteria high counts (> 106 CFU/g) in 22 % of the samples and in 44 % coliforms bacteria presence was demonstrated. In 10 % of the samples B. cereus was recuperated. Even with figures considered far below those of health risk, if stored in conditions of temperature abuse, as It often happens In the sampled sites contaminated rice still represents a health risk for the consumer.
publisher Universidad Autónoma de Tamaulipas
publishDate 2013
url https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/7
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