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Mean kinetic temperature calculator excel
Mean kinetic temperature calculator excel












mean kinetic temperature calculator excel

Nevertheless, most of these products need an efficient chilling system and temperature maintenance throughout the distributive network to comply food safety standards and retain the sensorial and nutritional properties. Since last century, the introduction of industrial and domestic refrigerators dramatically improved the food safety and quality by allowing perishable products to be stored for longer periods, with benefit for the whole food chain, from primary production (harvesting/milking/slaughtering/fishing) to manufacturing, storage, transportation, market distribution and catering services.Ĭonvenience foods ( Brunner et al., 2010), including ready-to-eat (RTE) products, ready-to-cook (RTC) and snack foods, have recently met a commercial blast in Hotellerie-Restaurant-Caféterias (HoReCa) supply chain, catering services and at home distribution, supported by their ease-to-use feature, enhanced shelf life and saving time process.

mean kinetic temperature calculator excel mean kinetic temperature calculator excel

The MKT profiles were then compared with those of mean temperatures in different conditions (short or prolonged events of thermal abuse) with the purpose to evaluate if it may be applicable to reduce false alarms without lowering the safety level of stored food.įor foods with high level of water activity and a pH value near to neutrality, temperature is the most important environmental factor to delay microbial spoilage, as it directly affects the duration of lag phase and the growth rate ( Jay et al., 2005 Adams and Moss, 2008). In this work, the air temperature of two chilling rooms was monitored during the normal operating activity in a catering company for a period of 8 months. monocytogenes (23.9 ± 1.2 kcal/mol) was included in the MKT formula. The E a value of the lag phase found for L. The use of MKT is widespread and well-accepted in pharmaceutical field as convenient method for estimating drugs degradation in relation to storage temperature. enterocolitica (from 14.2 to 16.7 kcal/mol). monocytogenes strains (from 20.9 to 21.1 kcal/mol), while were considerably lower for Y.

mean kinetic temperature calculator excel

The E a values of growth rates were similar for A. monocytogenes strains (from 21.3 to 24.4 kcal/mol), while significantly differed for Y. The E a values involved in the duration of latent periods, calculated on the basis of the Arrhenius model, were comparable for A. As expected, lag phase and growth rate proved to be heavily affected by temperature whereas the inoculum size did not. Secondly, to investigate if Mean Kinetic Temperature (MKT) might be applied in recording temperature devices to alert a thermal abuse in a management control system for food safety. Firstly, to evaluate growth behavior of Aeromonas hydrophila DSM-30187, Listeria monocytogenes DSM-20600, and Yersinia enterocolitica DSM-27689 strains, at different temperatures (4, 7, 10, 15, 25, and 30☌) and starting cell concentrations (10 and 10 6 CFU/mL), in order to determine the activation energies ( E a) of the relevant lag phases and growth rates. The psychrotrophic pathogen bacteria are microorganisms of concern for food products with extended shelf life in chilling conditions. Temperature is the main factor to control the microbial growth in perishable foods.

  • 3CAMST S.C.a.r.l.–La Ristorazione Italiana, Villanova di Castenaso, Bologna, Italy.
  • 2Department of Agricultural and Environmental Sciences, Università degli studi di Milano, Milan, Italy.
  • 1Department of Food, Environmental and Nutritional Sciences, Università degli studi di Milano, Milan, Italy.
  • Andrea De Silvestri 1 †, Enrico Ferrari 2 †, Simone Gozzi 3, Francesca Marchi 3 and Roberto Foschino 1 *














    Mean kinetic temperature calculator excel