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  1. American Journal of Food Technology
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  3. 29-36
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American Journal of Food Technology

Year: 2016 | Volume: 11 | Issue: 1-2 | Page No.: 29-36
DOI: 10.3923/ajft.2016.29.36

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Authors


Alyexandra Arienzo

Country: Italy

Francesca Losito

Country: Italy

Ottavia Stalio

Country: Italy

Giovanni  Antonini

Giovanni Antonini

LiveDNA: 39.11691

Keywords


  • Measurement uncertainty
  • total gage R and R
  • 3M PetrifilmTM count plates method
  • MBS method
  • plate count method
Research Article

Comparison of Uncertainty Between Traditional and Alternative Methods for Food Microbiological Analysis

Alyexandra Arienzo, Francesca Losito, Ottavia Stalio and Giovanni Antonini Giovanni  Antonini's LiveDNA
The objectives highlighted in the present study were to determine the estimates of measurement uncertainty associated with microbiological analysis in food samples performing a gage repeatability and reproducibility study on three different microbiological methods of analysis for the detection and quantification of total coliforms; Plate count method, 3M PetrifilmTM count plates method and the MBS method. For all three methods the contribution the total gage R and R is less than 10%, demonstrating the ability to accurately evaluate the concentration of total coliforms in food samples. However, the repeatability and reproducibility follows the tendency; Plate count method<3M PetrifilmTM count plates method<MBS method. The study also highlights that a significant variation is due to the interaction between the operators and the analyzed samples for plate count and 3M PetrifilmTM count plates methods while for the MBS method it does not significantly affect the measure. Together these results demonstrate that greater repeatability and reproducibility are connected to a more simple analytical procedure demonstrating that uncertainty is certainly related to the amount of manual work and the individual interpretation of results. Results confirm that it is important to diminish these sources of error reducing labor and simplifying procedures and increasing automation.
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How to cite this article

Alyexandra Arienzo, Francesca Losito, Ottavia Stalio and Giovanni Antonini, 2016. Comparison of Uncertainty Between Traditional and Alternative Methods for Food Microbiological Analysis. American Journal of Food Technology, 11: 29-36.

DOI: 10.3923/ajft.2016.29.36

URL: https://scialert.net/abstract/?doi=ajft.2016.29.36

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