What does this research mean for the field?

A high-cell-density fed-batch fermentation strategy using lactose as both an inducer and carbon source in recombinant Escherichia coli enables high-yield production of cyanophycin granule polypeptide (CGP), which demonstrates significant corrosion inhibition properties under acidic conditions. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Establish a cost-effective, high-cell-density cultivation strategy to produce cyanophycin granule polypeptide using recombinant Escherichia coli and assess its corrosion-inhibiting properties.

August 23, 2026Bioprocess and Biosystems EngineeringOpen Access

Biosynthesis of cyanophycin by high-cell-density cultivation of recombinant Escherichia coli for corrosion-resistant biomaterial applications

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Authors

SKSaroj Raj Kafle AMAnirudh Mukunth AHArum Han

Discussion

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Overview

Experimental study demonstrates cost-effective cyanophycin production in recombinant Escherichia coli, indicating strong potential for green corrosion-resistant biomaterials.

Key Points

Establish a cost-effective, high-cell-density cultivation strategy to produce cyanophycin granule polypeptide using recombinant Escherichia coli and assess its corrosion-inhibiting properties.
Cultured Escherichia coli BL21(DE3) expressing cyanophycin synthetase (CphA) and optimized media components, using lactose as an alternative inducer and carbon source.
Conducted high-cell-density fed-batch fermentation, characterized recovered polymers with FTIR, XRD, and MALDI-MS, and tested corrosion inhibition under acidic conditions.
Lactose induction exceeded IPTG induction in biomass and polymer yields, producing maximum crude soluble and insoluble cyanophycin-containing fractions of 35.4 g/L and 17.8 g/L, respectively.
The recovered cyanophycin material demonstrated a significant reduction in metal corrosion rates under acidic conditions compared with untreated control samples.

Cite This Study

Kafle et al. (2026) studied this question.

synapsesocial.com/papers/6a8aae007677a34114446ab3 https://doi.org/10.1007/s00449-026-03412-9

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August 23, 2026Bioprocess and Biosystems EngineeringOpen Access

Biosynthesis of cyanophycin by high-cell-density cultivation of recombinant Escherichia coli for corrosion-resistant biomaterial applications

View Full Paper

Ask AI

Bookmark

Authors

SKSaroj Raj Kafle AMAnirudh Mukunth AHArum Han

Discussion

Member takes

Overview

Experimental study demonstrates cost-effective cyanophycin production in recombinant Escherichia coli, indicating strong potential for green corrosion-resistant biomaterials.

Key Points

Establish a cost-effective, high-cell-density cultivation strategy to produce cyanophycin granule polypeptide using recombinant Escherichia coli and assess its corrosion-inhibiting properties.
Cultured Escherichia coli BL21(DE3) expressing cyanophycin synthetase (CphA) and optimized media components, using lactose as an alternative inducer and carbon source.
Conducted high-cell-density fed-batch fermentation, characterized recovered polymers with FTIR, XRD, and MALDI-MS, and tested corrosion inhibition under acidic conditions.
Lactose induction exceeded IPTG induction in biomass and polymer yields, producing maximum crude soluble and insoluble cyanophycin-containing fractions of 35.4 g/L and 17.8 g/L, respectively.
The recovered cyanophycin material demonstrated a significant reduction in metal corrosion rates under acidic conditions compared with untreated control samples.

Cite This Study

Kafle et al. (2026) studied this question.

synapsesocial.com/papers/6a8aae007677a34114446ab3 https://doi.org/10.1007/s00449-026-03412-9

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