Do bacterial cell numbers follow a theoretical Poisson distribution? Comparison of experimentally obtained numbers of single cells with random number generation …

K Koyama, H Hokunan, M Hasegawa, S Kawamura… - Food …, 2016 - Elsevier
We investigated a bacterial sample preparation procedure for single-cell studies. In the
present study, we examined whether single bacterial cells obtained via 10-fold dilution …

Tail or artefact? Illustration of the impact that uncertainty of the serial dilution and cell enumeration methods has on microbial inactivation

A Garre, JA Egea, A Esnoz, A Palop… - Food Research …, 2019 - Elsevier
The estimation of the concentration of microorganisms in a sample is crucial for food
microbiology. For instance, it is essential for prevalence studies, challenge tests (growth …

Modeling stochastic variability in the numbers of surviving Salmonella enterica, enterohemorrhagic Escherichia coli, and Listeria monocytogenes cells at the single …

K Koyama, H Hokunan, M Hasegawa… - Applied and …, 2017 - Am Soc Microbiol
Despite effective inactivation procedures, small numbers of bacterial cells may still remain in
food samples. The risk that bacteria will survive these procedures has not been estimated …

Heterogeneity of single cell inactivation: assessment of the individual cell time to death and implications in population behavior

Z Aspridou, A Balomenos, P Tsakanikas, E Manolakos… - Food …, 2019 - Elsevier
A direct microscopic time-lapse method, using appropriate staining for cell viability in a
confocal scanning laser microscope, was used for the direct assessment of Salmonella …

Development of a global stochastic model relating the distribution of individual cell and population physiological states

RC McKellar, X Lu - International journal of food microbiology, 2005 - Elsevier
Our ability to predict the lag (λ) prior to growth of foodborne pathogens is limited by our lack
of understanding of the physiological changes taking place in the individual cell during the …

Recent advances in predictive microbiology: theory and application of conversion from population dynamics to individual cell heterogeneity during inactivation …

S Koseki, K Koyama, H Abe - Current Opinion in Food Science, 2021 - Elsevier
Highlights•Development of stochastic modeling technique for bacterial inactivation is
reviewed.•Variability in survival cell numbers during inactivation process is described as …

Estimation of the probability of bacterial population survival: development of a probability model to describe the variability in time to inactivation of Salmonella enterica

K Koyama, H Hokunan, M Hasegawa, S Kawamura… - Food …, 2017 - Elsevier
Despite the development of numerous predictive microbial inactivation models, a model
focusing on the variability in time to inactivation for a bacterial population has not been …

Transforming kinetic model into a stochastic inactivation model: Statistical evaluation of stochastic inactivation of individual cells in a bacterial population

S Hiura, H Abe, K Koyama, S Koseki - Food microbiology, 2020 - Elsevier
Kinetic models performing point estimation are effective in predicting the bacterial behavior.
However, the large variation of bacterial behavior appearing in a small number of cells, ie …

Assessment of distributions for fitting lag times of individual cells in bacterial populations

RC McKellar, A Hawke - International journal of food microbiology, 2006 - Elsevier
To develop mathematical models describing lag times of individual bacterial cells (τ),
experimental τ data were fitted to a variety of continuous distributions using BestFit. Six …

Modified Microtiter count method for viable cell counts from pure cultures and food model samples

S Kim, DYC Fung - Food microbiology, 2005 - Elsevier
A modified Microtiter count method was designed to assess viable cell counts in a rapid,
easy, and accurate way. A Spiral plate method was used for comparison with the modified …