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Solvent selection strategy for an ISPR (In Situ/In stream product recovery) process: The case of microbial production of p-coumaric acid coupled with a liquid-liquid extraction

Abstract : This work reports on a solvent selection for the liquid-liquid extraction of p-coumaric acid produced by an engineered strain of Saccharomyces cerevisiae. The solvent selection is a key point of liquid-liquid extraction processes and this work describes a simple strategy to choose a suitable solvent for an in situ or in stream product recovery (ISPR) process during bioconversion. ISPR processes allow to limit the inhibition caused by end-products accumulation in the fermentation medium. The strategy consists in scoring different solvents based on different criteria weighted according to their significance for the process. Extraction performance, solvent biocompatibility and compatibility with materials, were chosen as essential criteria and the first two were assessed experimentally using distribution coefficients and flow cytometry, respectively. Following this first step, three solvents were selected as candidates for the process of interest and ranked according to the process needs using secondary criteria, namely safety, sourcing and price. Finally, oleyl alcohol obtained the highest score and was therefore considered as the most suitable candidate for an ISPR process with the aim of continuously extracting p-coumaric acid from the fermentation medium. This work is a first step towards the implementation of integrated extractive bioconversion for the production of bio-based molecules such as p-hydroxycinnamic acids and derivatives.
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https://hal-agroparistech.archives-ouvertes.fr/hal-03232090
Contributor : Irina Ioannou <>
Submitted on : Friday, May 21, 2021 - 12:36:56 PM
Last modification on : Thursday, June 10, 2021 - 12:41:29 PM

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Jeanne Combes, Erika Clavijo Rivera, Violaine Athès-Dutour, Clémentine Fojcik, Florent Allais, et al.. Solvent selection strategy for an ISPR (In Situ/In stream product recovery) process: The case of microbial production of p-coumaric acid coupled with a liquid-liquid extraction. Separation and Purification Technology, Elsevier, 2021, 259, pp.118170. ⟨10.1016/j.seppur.2020.118170⟩. ⟨hal-03232090⟩

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