Gamma_aw_2p: this function of secondary growth model describe the...

In Ghayabh/predictive-microbiology: bacterialgrowth Package

Description

this function of secondary growth model describe the evolution of the square root of the maximum specific growth rate (sqrtmumax) as a function of water activity (aw), This is a symetric cardinal pH model developped by Rosso & Robinson in 2001 with two parameters (awmin, muopt) and awopt =1

Usage

Gamma_aw_2p(aw, awmin, muopt)

Arguments

aw	water activity #a number
awmin	minimal growth water activity # a number
muopt	Optimal growth rate # a number # a number

Details

\begin{equation}\begin{aligned} &\mathrm{cpm}_{-} \text {aw }_{-} 2 \mathrm{p}<-\text { as.formula }(\text { sqrtmumax } \sim \operatorname{sqrt}(\mathrm{aw}>=\\ &≤ft.\text { awmin) }≤ft.^{*} \text { muopt }^{*}(\mathrm{aw}-\text { awmin })^{\wedge} 2 /(1-\mathrm{awmin})^{\wedge} 2\right)\right) \end{aligned}\end{equation}

Value

mumax #maximum growth rate # a number

Examples

Gamma_aw_2p(0.92,0.90,0.097)

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