modBuchanan: The primary predictive model developped by Buchanan in 1918,...

Description Usage Arguments Details Value Examples

View source: R/modBuchanan.R

Description

The primary predictive model developped by Buchanan in 1918, to predict microbial behavior in food environments.

Usage

1
modBuchanan(temp, log10N0, log10Nmax, mumax, lag)

Arguments

temp

time vector

log10N0

Initial population density #a number

log10Nmax

maximum population density # a number

mumax

maximum growth rate # a number

lag

lag time # a number

Details

\begin{equation}\operatorname{Ln}[N(t)]=\ln ≤ft(N_{0}\right) \quad \text { si } t ≤q λ\end{equation}

\begin{equation} \operatorname{Ln}[N(t)]=\ln ≤ft(N_{0}\right)-μ(t-λ) \quad \text { si } t>λ \end{e\begin{equation} \operatorname{Ln}[N(t)]=\ln ≤ft(N_{\max }\right) \quad \operatorname{si} N(t) ≥q N_{\max } \end{equation}quation}

Value

LOG10N

Examples

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temp<-seq(0,48,0.5)
modBuchanan(temp,1,9,0.5,4)

Ghayabh/predictive-microbiology documentation built on Nov. 14, 2020, 7:54 p.m.