Occurrence and significance of Bacillus cereus and Bacillus thuringiensis in ready-to-eat food

Hanne Rosenquist; Lasse Ørum-Smidt; Sigrid R Andersen; Gert B. Jensen; Andrea Wilcks

doi:10.1016/j.femsle.2005.06.054

Occurrence and significance of Bacillus cereus and Bacillus thuringiensis in ready-to-eat food

Hanne Rosenquist, Lasse Ørum-Smidt, Sigrid R Andersen, Gert B. Jensen, Andrea Wilcks

National Food Institute

Technical University of Denmark

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Among 48,901 samples of ready-to-eat food products at the Danish retail market, 0.5% had counts of Bacillus cereus-like bacteria above 10(4) cfu g(-1). The high counts were most frequently found in starchy, cooked products, but also in fresh cucumbers and tomatoes. Forty randomly selected strains had at least one gene or component involved in human diarrhoeal disease, while emetic toxin was related to only one B. cereus strain. A new observation was that 31 out of the 40 randomly selected B. cereus-like strains could be classified as Bacillus thuringiensis due to crystal production and/or content of cry genes. Thus, a large proportion of the B. cereus-like organisms present in food may belong to B. thuringiensis.

Original language	English
Journal	FEMS Microbiology Letters
Volume	250
Issue number	1
Pages (from-to)	129-136
ISSN	0378-1097
DOIs	https://doi.org/10.1016/j.femsle.2005.06.054
Publication status	Published - 2005

Keywords

insecticidal toxins
emetic toxin
ready-to-eat food
Bacillus thuringiensis
Bacillus cereus
enterotoxins

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.femsle.2005.06.054

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abstract = "Among 48,901 samples of ready-to-eat food products at the Danish retail market, 0.5% had counts of Bacillus cereus-like bacteria above 10(4) cfu g(-1). The high counts were most frequently found in starchy, cooked products, but also in fresh cucumbers and tomatoes. Forty randomly selected strains had at least one gene or component involved in human diarrhoeal disease, while emetic toxin was related to only one B. cereus strain. A new observation was that 31 out of the 40 randomly selected B. cereus-like strains could be classified as Bacillus thuringiensis due to crystal production and/or content of cry genes. Thus, a large proportion of the B. cereus-like organisms present in food may belong to B. thuringiensis.",

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AU - Rosenquist, Hanne

AU - Ørum-Smidt, Lasse

AU - Andersen, Sigrid R

AU - Jensen, Gert B.

AU - Wilcks, Andrea

PY - 2005

Y1 - 2005

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KW - insecticidal toxins

KW - emetic toxin

KW - ready-to-eat food

KW - Bacillus thuringiensis

KW - Bacillus cereus

KW - enterotoxins

U2 - 10.1016/j.femsle.2005.06.054

DO - 10.1016/j.femsle.2005.06.054

M3 - Journal article

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ER -

Occurrence and significance of Bacillus cereus and Bacillus thuringiensis in ready-to-eat food

Abstract

Keywords

UN SDGs

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