What question did this study set out to answer?

To quantitatively evaluate the trade-offs between product formation, product release, and cellular robustness during extracellular Fab antibody fragment production in engineered Escherichia coli.

August 16, 2026Bioprocess and Biosystems EngineeringOpen Access

Automated high-throughput screening combined with model-assisted analysis enables quantitative identification of process drivers and trade-offs during extracellular Fab production in Escherichia coli

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Authors

FSFabian Schröder-Kleeberg LKLucas Kaspersetz SNSanchir Anar Neff

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Overview

High-throughput screening reveals trade-offs between productivity and cell lysis during Fab synthesis in Escherichia coli, indicating induction and temperature control bioprocess efficiency.

Key Points

To quantitatively evaluate the trade-offs between product formation, product release, and cellular robustness during extracellular Fab antibody fragment production in engineered Escherichia coli.
Screened 32 fed-batch cultivation conditions across six process parameters using 100 automated high-throughput bioreactor runs.
Utilized mechanistic modeling to quantify rates of cell lysis, product formation, and product release kinetics, including evaluations under large-scale substrate heterogeneity conditions.
Optimized conditions increased Fab titers approximately twofold to 730 mg/L and decreased cell lysis rates up to eightfold, accompanied by a 2.2-fold reduction in product release rate.
Induction strength was identified as the primary driver for maximizing Fab titer, whereas cultivation temperature regulated the balance between product release and cell lysis.
Moderate substrate heterogeneities simulating industrial scales enhanced Fab productivity while concurrently reducing cell lysis.

Cite This Study

Schröder-Kleeberg et al. (2026) studied this question.

synapsesocial.com/papers/6a8179abf2fb91fc834ace59 https://doi.org/10.1007/s00449-026-03379-7

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August 16, 2026Bioprocess and Biosystems EngineeringOpen Access

Automated high-throughput screening combined with model-assisted analysis enables quantitative identification of process drivers and trade-offs during extracellular Fab production in Escherichia coli

View Full Paper

Ask AI

Bookmark

Authors

FSFabian Schröder-Kleeberg LKLucas Kaspersetz SNSanchir Anar Neff

Discussion

Member takes

Overview

High-throughput screening reveals trade-offs between productivity and cell lysis during Fab synthesis in Escherichia coli, indicating induction and temperature control bioprocess efficiency.

Key Points

To quantitatively evaluate the trade-offs between product formation, product release, and cellular robustness during extracellular Fab antibody fragment production in engineered Escherichia coli.
Screened 32 fed-batch cultivation conditions across six process parameters using 100 automated high-throughput bioreactor runs.
Utilized mechanistic modeling to quantify rates of cell lysis, product formation, and product release kinetics, including evaluations under large-scale substrate heterogeneity conditions.
Optimized conditions increased Fab titers approximately twofold to 730 mg/L and decreased cell lysis rates up to eightfold, accompanied by a 2.2-fold reduction in product release rate.
Induction strength was identified as the primary driver for maximizing Fab titer, whereas cultivation temperature regulated the balance between product release and cell lysis.
Moderate substrate heterogeneities simulating industrial scales enhanced Fab productivity while concurrently reducing cell lysis.

Cite This Study

Schröder-Kleeberg et al. (2026) studied this question.

synapsesocial.com/papers/6a8179abf2fb91fc834ace59 https://doi.org/10.1007/s00449-026-03379-7

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