Results 51 to 60 of about 11,845 (215)

On Geometry and Scale of a Stochastic Chemostat [PDF]

open access: yesCommunications in Statistics - Theory and Methods, 2013
A chemostat is a fixed volume bioreactor in which micro--organisms are grown in a continuously renewed liquid medium. We propose a stochastic model for the evolution of the concentrations in the single species and single substrate case. It is obtained as a diffusion approximation of a pure jump Markov process, whose increments are comparable in mean ...
Joannides, Marc   +1 more
openaire   +2 more sources

Historical Contingency Drives Freshwater Microbial Community Assembly Across Successional Time

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
Using a 60‐day full‐factorial reciprocal transplant microcosm experiment, we quantified the relative contributions of historical contingency, environmental selection, and dispersal limitation to freshwater bacterial community assembly. We show a pronounced temporal shift from early dispersal‐driven assembly to late‐stage dominance of historical ...
Fenguo Zhang   +4 more
wiley   +1 more source

Stochastic models of the chemostat

open access: yes, 2010
We consider the modeling of the dynamics of the chemostat at its very source. The chemostat is classically represented as a system of ordinary differential equations.
Campillo, Fabien   +2 more
core   +2 more sources

An Effective Method of Continuous Production of Erythritol from Glycerol by Yarrowia lipolytica MK1

open access: yesFood Technology and Biotechnology, 2017
This study demonstrates the potential applicability of the UV mutant Yarrowia lipolytica MK1 for the valorisation of glycerol and erythritol production in a chemostat culture.
Magdalena Rakicka   +4 more
doaj   +1 more source

Dynamics of an unstirred chemostat model with Beddington–DeAngelis functional response

open access: yesFrontiers in Physics, 2023
This paper deals with an unstirred competitive chemostat model with the Beddington–DeAngelis functional response. With the help of the linear eigenvalue theory and the monotone dynamical system theory, we establish a relatively clear dynamic ...
Wang Zhang, Hua Nie, Zhiguo Wang
doaj   +1 more source

Microbial interactions as modular: Implications for ecosystem dynamics and evolution

open access: yesEcological Monographs, Volume 96, Issue 2, May 2026.
Abstract Microbial communities contribute to numerous processes that profoundly impact planetary and human health. They therefore hold potential for addressing many of today's pressing global challenges. Microbial ecosystems have been studied at many levels, ranging from the molecular processes of individual cells to the emergent properties and ...
Alyssa Henderson   +3 more
wiley   +1 more source

Evolutionary Engineering in Chemostat Cultures for Improved Maltotriose Fermentation Kinetics in Saccharomyces pastorianus Lager Brewing Yeast

open access: yesFrontiers in Microbiology, 2017
The lager brewing yeast Saccharomyces pastorianus, an interspecies hybrid of S. eubayanus and S. cerevisiae, ferments maltotriose, maltose, sucrose, glucose and fructose in wort to ethanol and carbon dioxide. Complete and timely conversion (“attenuation”)
Anja Brickwedde   +7 more
doaj   +1 more source

Overexploitation can counteract top‐down control and the paradox of enrichment in simple food chains

open access: yesOikos, Volume 2026, Issue 5, May 2026.
Because of its high abundance or its high feeding intensity, a consumer can overexploit its resource by consuming it on a shorter timescale than resource regeneration. While this short‐term overexploitation is widespread in nature, its general implications for biotic control patterns and ecosystem stability are not clear.
Josquin Guerber   +2 more
wiley   +1 more source

Emerging Technologies for Biobutanol Production via Syngas Fermentation

open access: yesGCB Bioenergy, Volume 18, Issue 5, May 2026.
Biobutanol production from syngas is promising but limited by microbial energy conservation and gas–liquid mass transfer. This review integrates advances in cultivation control and bioreactor engineering with next‐generation biological tools including metabolic rewiring, co‐cultivation and chain elongation, and electro‐fermentation to enable carbon ...
Xuemei Wang   +3 more
wiley   +1 more source

Mathematical analysis of fractional-order chemostat model with time delay

open access: yes, 2021
The fractional-order differential equations (FDEs) is studied to describe the dynamic behaviour of a chemostat system. This study also investigated the FDEs with time delay to examine the effect of time delay on the behaviour of a chemostat system.
Mohd Aris, Nor Afiqah
core  

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