A Tool for On-Line Monitoring Microalgal Bioprocesses Based on Gas Balance Analysis.

Authors

Guillaume Cogne, Fernando Ferrel Ballestas, Mariana Titica, Jack Legrand

Published in

Biotechnology and bioengineering. Apr 05, 2025. Epub Apr 05, 2025.

Abstract

This study introduces a novel method for monitoring microalgae growth and evaluating mass transfer efficiency in photobioreactors, specifically under non-limiting and controlled growth conditions. By leveraging data on elemental composition, gas transfer rates, and oxygen production rate, the method estimates biomass growth and assesses gas-liquid mass transfer coefficients. The approach uses indirect measurements to infer critical parameters, including biomass concentration, total inorganic carbon, and nitrogen levels. Results demonstrate accurate predictions of biomass growth and carbon dynamics, along with effective characterization of mass transfer coefficients. This method offers a robust tool for optimizing photobioreactor performance and enhancing process control.

PMID:
40186552
Bibliographic data and abstract were imported from PubMed on 06 Apr 2025.

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