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首页> 外文期刊>Biotechnology Progress >Modeling Stability of Photoheterotrophic Continuous Cultures in Photobioreactors
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Modeling Stability of Photoheterotrophic Continuous Cultures in Photobioreactors

机译：光生物反应器中光异养连续培养物的稳定性建模

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摘要

Continuous cultures of the purple non-sulfur bacterium Rhodospirillum rubrum were grown in a cylindrical photobioreactor in photoheterotrophic conditions, using acetate as carbon source. A new kinetic and stoichiometric knowledge model was developed, and its ability to simulate experimental results obtained under varying incident light fluxes and residence times is discussed. The model accurately predicts the stable, unstable, or oscillating behavior observed for the reactor productivity. In particular, the values of residence time corresponding to a subcritical bifurcation with a typical hysteresis effect are calculated and analyzed. The robustness of the proposed model allows the engineering operating domain of the photobioreactor function to be set and offers a promising tool for the design and control of such photoheterotrophic processes.
机译：使用乙酸盐作为碳源，在光异养条件下，在圆柱形光生物反应器中培养紫色非硫细菌红球红螺菌的连续培养物。建立了新的动力学和化学计量知识模型，并讨论了其模拟在变化的入射光通量和停留时间下获得的实验结果的能力。该模型可准确预测观察到的反应器生产率的稳定，不稳定或振荡行为。特别地，计算和分析与具有典型滞后效应的亚临界分叉相对应的停留时间值。所提出模型的鲁棒性允许设置光生物反应器功能的工程操作领域，并为设计和控制这种光异养过程提供了有希望的工具。

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