Within the present study, regulation of the nonribosomal synthesis of the depsipeptide toxin cereulide was characterized on a molecular level. Cereulide is produced by emetic
Bacillus cereus strains and intoxications occasionally lead to lethal food-borne illnesses.
Therefore, a lux-based reporter strain was used to establish a novel and rapid risk assessment system to monitor toxin synthesis in food. Furthermore, this study shows that long-chain polyphosphates, which are widely used food additives in the dairy and meat industry, inhibit cereulide synthesis in a targeted manner. By means of molecular and biochemical techniques, it was shown that cereulide synthesis is controlled by complex regulatory networks that integrate extrinsic as well as intrinsic factors, such as transcriptional regulators and the metabolic cell status. This knowledge might contribute to improve food safety and consumer protection concepts in the future
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Within the present study, regulation of the nonribosomal synthesis of the depsipeptide toxin cereulide was characterized on a molecular level. Cereulide is produced by emetic
Bacillus cereus strains and intoxications occasionally lead to lethal food-borne illnesses.
Therefore, a lux-based reporter strain was used to establish a novel and rapid risk assessment system to monitor toxin synthesis in food. Furthermore, this study shows that long-chain polyphosphates, which are widely used food addi...
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