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About biomass overyielding of mixed cultures in batch processes.
Mathematical Biosciences ( IF 4.3 ) Pub Date : 2020-02-11 , DOI: 10.1016/j.mbs.2020.108322
A Rapaport 1 , T Nidelet 2 , S El Aida 3 , J Harmand 4
Affiliation  

We study mechanisms that can produce an increase of biomass production in batch processes when considering mixed cultures, compared to pure cultures. We show that growth thresholds or variable yields can produce 'overyielding', while this is not possible in the classical batch model with multiple species. We give sufficient conditions on the characteristics of the species to obtain overyielding, and illustrate these theoretical results with numerical simulations. This work provides new insights on species complementary in models of mixed cultures, without having to consider direct interactions terms between species as, for instance in the well known Generalized Lotka-Volterra model.

中文翻译:

关于分批过程中混合培养物的生物量过量生产。

当考虑混合培养时,我们研究了与纯培养相比可以在分批过程中增加生物量生产的机理。我们表明,增长阈值或可变产量会产生“过度增产”,而在具有多个物种的经典批处理模型中这是不可能的。我们给该物种的特征提供了充分的条件,以获得过度收获,并通过数值模拟说明了这些理论结果。这项工作为混合文化模型中的物种补充提供了新的见解,而不必像众所周知的广义Lotka-Volterra模型那样考虑物种之间的直接相互作用。
更新日期:2020-02-11
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