The prevalence and concentration of bacillus cereus in retail food products in Brisbane, Australia

Illness associated with Bacillus cereus may be underreported as very few of those affected seek medical attention owing to the mild nature and short duration of symptoms. For this reason there is little information on the prevalence and concentration of this pathogen in retail food products. A total...

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Main Authors: Eglezos, S., Huang, B., Dykes, Gary, Fegan, N.
Format: Journal Article
Published: 2010
Online Access:http://hdl.handle.net/20.500.11937/12216
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author Eglezos, S.
Huang, B.
Dykes, Gary
Fegan, N.
author_facet Eglezos, S.
Huang, B.
Dykes, Gary
Fegan, N.
author_sort Eglezos, S.
building Curtin Institutional Repository
collection Online Access
description Illness associated with Bacillus cereus may be underreported as very few of those affected seek medical attention owing to the mild nature and short duration of symptoms. For this reason there is little information on the prevalence and concentration of this pathogen in retail food products. A total of 1263 retail food samples were examined for B. cereus using the Australian Standard 1766.2.6 (1991): spread plate technique on polymyxin pyruvate egg yolk mannitol bromothymol blue agar, of which the limit of detection was log 10 2.0cfu/g. Bacillus cereus was not detected in samples of skim milk powder, sandwiches, sushi, fresh beef mince, tortillas, or shelf stable stir-fry sauces. Bacillus cereus was detected in the following food samples: uncooked pizza bases (1 of 63 samples, log10 count of 2.0cfu/g), cooked pizzas (8 of 175, mean log10 3.4cfu/g), cooked meat pies (7 of 157, mean log10 2.2cfu/g), cooked sausage rolls (5 of 153, mean log10 2.6cfu/g), processed meats (1 of 350, log10 3.3cfu/g), and raw diced chicken (3 of 55, mean log10 4.3cfu/g). It appears that composite food products have more positive detection samples because the numerous ingredients may introduce spores into the foods. This study provides valuable data on the distribution, prevalence, and concentration of B. cereus in selected retail products. © 2010, Mary Ann Liebert, Inc.
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spelling curtin-20.500.11937-122162017-09-13T14:59:51Z The prevalence and concentration of bacillus cereus in retail food products in Brisbane, Australia Eglezos, S. Huang, B. Dykes, Gary Fegan, N. Illness associated with Bacillus cereus may be underreported as very few of those affected seek medical attention owing to the mild nature and short duration of symptoms. For this reason there is little information on the prevalence and concentration of this pathogen in retail food products. A total of 1263 retail food samples were examined for B. cereus using the Australian Standard 1766.2.6 (1991): spread plate technique on polymyxin pyruvate egg yolk mannitol bromothymol blue agar, of which the limit of detection was log 10 2.0cfu/g. Bacillus cereus was not detected in samples of skim milk powder, sandwiches, sushi, fresh beef mince, tortillas, or shelf stable stir-fry sauces. Bacillus cereus was detected in the following food samples: uncooked pizza bases (1 of 63 samples, log10 count of 2.0cfu/g), cooked pizzas (8 of 175, mean log10 3.4cfu/g), cooked meat pies (7 of 157, mean log10 2.2cfu/g), cooked sausage rolls (5 of 153, mean log10 2.6cfu/g), processed meats (1 of 350, log10 3.3cfu/g), and raw diced chicken (3 of 55, mean log10 4.3cfu/g). It appears that composite food products have more positive detection samples because the numerous ingredients may introduce spores into the foods. This study provides valuable data on the distribution, prevalence, and concentration of B. cereus in selected retail products. © 2010, Mary Ann Liebert, Inc. 2010 Journal Article http://hdl.handle.net/20.500.11937/12216 10.1089/fpd.2009.0469 restricted
spellingShingle Eglezos, S.
Huang, B.
Dykes, Gary
Fegan, N.
The prevalence and concentration of bacillus cereus in retail food products in Brisbane, Australia
title The prevalence and concentration of bacillus cereus in retail food products in Brisbane, Australia
title_full The prevalence and concentration of bacillus cereus in retail food products in Brisbane, Australia
title_fullStr The prevalence and concentration of bacillus cereus in retail food products in Brisbane, Australia
title_full_unstemmed The prevalence and concentration of bacillus cereus in retail food products in Brisbane, Australia
title_short The prevalence and concentration of bacillus cereus in retail food products in Brisbane, Australia
title_sort prevalence and concentration of bacillus cereus in retail food products in brisbane, australia
url http://hdl.handle.net/20.500.11937/12216