competitioncurve: Growth kinetics of two competitive bacterial flora

In nlsMicrobio: Nonlinear Regression in Predictive Microbiology

Description

Kinetics of simultaneous growth of Escherichia coli O157:H7 and ground beef background microflora in enrichment broth

Usage

  data(competition1)
  data(competition2)

Format

Data frames with 3 columns (t: time, flora : 1 for the first flora and 2 for the second one, LOG10N: decimal logarithm of bacterial density)

Source

Two of the kinetics used in Vimont et al. (2006)

References

Vimont A, Vernozy-Rozand C, Montet MP, Lazizzera C, Bavai C and Delignette-Muller ML (2006) Modeling and predicting the simultaneous growth of Escherichia coli O157:H7 and ground beef background microflora in various enrichment protocols. Applied and Environmental Microbiology 72, 261-268.

Examples

data(competition1)
data(competition2)
def.par <- par(no.readonly = TRUE)
par(mfrow = c(1,2))
twocolors <- c("red","blue")
plot(competition1$t,competition1$LOG10N,col=twocolors[competition1$flora])
plot(competition2$t,competition2$LOG10N,col=twocolors[competition2$flora])
par(def.par)

Example output

Loading required package: nlstools

'nlstools' has been loaded.

IMPORTANT NOTICE: Most nonlinear regression models and data set examples
related to predictive microbiolgy have been moved to the package 'nlsMicrobio'

nlsMicrobio documentation built on Sept. 17, 2021, 5:07 p.m.