A study of stochastic model to predict the growth evolution of food born moulds

Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XVI
Written by Mioara VARGA, Florentina MATEI, Mala-Maria STAVRESCU-BEDIVAN

Over the last few decades stochastic study in biology has acquired global dimension. The prevention of the food product contamination with toxinogenic moulds is an actuality problem of microbiology. This means that it is necessary to have precise diagnostic methods in order to predict and describe in detail the dynamic of the alteration. Considering all these facts, we tried to develop in our paper a stochastic model to answer to this question. First, we have established some conclusions regarding the growth model; for this, we have made appropriate graphics corresponding evolution strains of Penicillium crysogenum and Fusarium graminearum during the 14 days. Secondly, we have examined the phenomenon of growth as a non-homogeneous Poisson process involving periodic variations in the occurrence rate and we have obtained the probability density function of the time intervals of growth.

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Varga M., Matei F., Stavrescu-Bedivan M. M., 2012, A study of stochastic model to predict the growth evolution of food born moulds. Scientific Bulletin. Series F. Biotechnologies, Vol. XVI, ISSN-L 2285-1364, 182-185.

 


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