Modeling photoheterotrophic growth kinetics of Rhodospirillum rubrum in rectangular photobioreactors

Jean François Cornet, Joan Albiol

    Research output: Contribution to journalArticleResearchpeer-review

    25 Citations (Scopus)

    Abstract

    Based on a previously established model for radiant light transfer in photobioreactors (PBR), taking into account absorption and scattering of light, a new knowledge model for coopling radiant light energy available and local growth kinetics in PBRs for the photoheterotrophic bacteria Rhodospirillum rubrum is discussed. A revised method is presented for the calculation of the absorption and scattering coefficients. The specific characteristics of the electron-transfer chains in such microorganisms leads to definition of three different metabolic zones in the PBR, explaining the behavior of mean kinetics observed in a wide range of incident light fluxes. The model is validated in rectangular PBRs for five different carbon sources and proved robust and fully predictive. This approach can be considered for simulation and model-based predictive control of PBRs cultivating photoheterotrophic microorganisms.
    Original languageEnglish
    Pages (from-to)199-207
    JournalBiotechnology Progress
    Volume16
    Issue number2
    DOIs
    Publication statusPublished - 10 May 2000

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