IIR document
Application of impedimetry for rapid estimation of bacterial contamination of pre-cut chilled vegetables and prediction of their microbiological shelf-life.
Author(s) : MOHÁCSI-FARKAS C., FARKAS J., REICHART O., SÁRAY T., MÉSZÁROS L.
Summary
Total aerobic plate counts of unirradiated and 1 kilo gray-irradiated, aerobically packaged pre-cut bell pepper and carrot cubes were followed during post-irradiation storage at various temperatures between 1 and 16°C. The same samples used for plate counting were inoculated into Don Whitley broth and conductimetric measurements were performed at 30°C for 48 hours. The logarithm of the total aerobic viable cell counts showed good linear correlation with the conductimetric detection time (TTD-) values in the range of 1000 to 100 CFU/g millions and the cell count reducing effect of low-dose irradiation did not seem to influence much this correlation. Equations were calculated from the data pairs, which expressed log CFU values as a linear function of TTD with statistically significant determination coefficients.
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Pages: 1997-2/EUR 18816
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Details
- Original title: Application of impedimetry for rapid estimation of bacterial contamination of pre-cut chilled vegetables and prediction of their microbiological shelf-life.
- Record ID : 2000-0261
- Languages: English
- Source: Predictive Microbiology Applied to Chilled Foods Preservation
- Publication date: 1997/06/16
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
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Themes:
Food engineering;
Vegetables - Keywords: Impedance; Food; Chilled food; Carrot; Microorganism; Measurement; Sweet pepper; Modelling; Vegetable; Development
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