A predictive shelf life model as a tool for the improvement of quality management in pork and poultry chains.

Details zur Publikation
Autorenliste: Bruckner S., Albrecht A., Petersen B., Kreyenschmidt J.
Jahr der Veröffentlichung: 2013
Quelle: Food Control
Bandnummer: 29
Heftnummer: 2
Erste Seite: 451
Letzte Seite: 460
Verlag: Elsevier
ISSN: 0956-7135
DOI: 10.1016/j.foodcont.2012.05.048
Sprachen: Englisch


The aim of the
present study was the development of a common predictive shelf life
model, which is applicable for fresh pork as well as fresh poultry meat. Based on the growth of Pseudomonas
sp., the model was developed by combining the Gompertz model as primary
and the Arrhenius model as secondary model. Relevant microbial growth
parameters for fresh poultry (growth rate, time at which maximum growth
rate is obtained = reversal point) were related to the corresponding
parameters for fresh pork which enabled the development of a common
shelf life model. The model predictions for Pseudomonas sp.
growth as well as the shelf lives at dynamic temperature conditions were
in good agreement with the observations for fresh pork and fresh
poultry ‘even if only short temperature abuses were performed (with a
duration of less than 5% of the total storage time). Whereas for pork a
slight overestimation of shelf life occurred (mean difference between
observed and predicted shelf life: −2.7%), the shelf life times for
poultry were mostly underestimated (mean difference: 11.1%).

the implementation in real meat chains, it is necessary to adapt the
model to the specific product and supply chain characteristics. Then the
model can be considered to be an effective tool (in combination with
adequate temperature monitoring solutions) for the improvement of
quality management within the meat supply and distribution chain. The
predictive information of the model can be used in specific situations
of decision making, for example by optimising the storage management
from the FIFO concept (First In First Out) to the LSFO concept (Least
Shelf life, First Out).