论文信息 - Theoretical and experimental recovery of oscillations during batch growth of a mixed culture of yeast in water

Theoretical and experimental recovery of oscillations during batch growth of a mixed culture of yeast in water

Theoretical and experimental evidence of substantial damped oscillations during batch interaction of two strains of Saccharomyces cerevisiae grown as a mixed culture in pure (distilled) water is provided. The experimental results show that in the limited nutrient conditions of growth in pure water both strains coexist if the initial concentration ratio between the two strains is 1:1. A new theoretical model that was originally developed for recovering the growth of single species in isolation is extended and applied to the two strains of yeast competing over a common ecological niche. The model solutions are shown to recover all the qualitative features captured in the experiments.

[1] Peter Vadasz,et al. Convergence and accuracy of Adomian’s decomposition method for the solution of Lorenz equations , 2000 .

[2] P. Vadasz,et al. Weak Turbulence and Chaos for Low Prandtl Number Gravity Driven Convection in Porous Media , 1999 .

[3] Raymond Pearl,et al. The Growth of Populations , 1927, The Quarterly Review of Biology.

[4] E. C. Pielou. An introduction to mathematical ecology , 1970 .

[5] Peter Vadasz,et al. Route to Chaos for Moderate Prandtl Number Convection in a Porous Layer Heated from Below , 2000 .

[6] M. Abashar,et al. Recovery of an oscillatory mode of batch yeast growth in water for a pure culture. , 2001, International journal of food microbiology.