About overyielding with mixed cultures in batch processes

Jérôme Harmand (1) , Alain Rapaport (2) , Thibault Nidelet (3)

1 LBE - Laboratoire de Biotechnologie de l'Environnement [Narbonne]
2 MISTEA - Mathématiques, Informatique et STatistique pour l'Environnement et l'Agronomie
3 SPO - Sciences Pour l'Oenologie

This paper investigates-via modeling-several possible explanations of overyielding observed in mixed cultures cultivated in batch reactors. It is first shown that the classical model of competition of N species for a single resource cannot explain such overyielding. Then, three hypotheses are introduced and discussed at the light of numerical simulations.

Mots clés: mortality; competition; batch processes; variable yield; overyielding

Domaines: Systèmes dynamiques [math.DS]; Génie des procédés; Modélisation et simulation

Jérôme Harmand, Alain Rapaport, Thibault Nidelet. About overyielding with mixed cultures in batch processes. 8th IFAC Conference on Foundations of Systems Biology in Engineering (FOSBE 2019), Oct 2019, Valencia, Spain. pp.163-168, ⟨10.1016/j.ifacol.2019.12.252⟩. ⟨hal-02318595⟩