Navigating Downstream Processing

Downstream processing (DSP) separates, concentrates and purifies a target product after fermentation. Curia’s technical overview explains how broth volume, product stability and solvent-handling infrastructure influence scale-up. It connects these challenges to Curia’s recovery, filtration, chromatography and isolation capabilities for fermentation-derived products, including small molecule metabolites.

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What matters when scaling downstream processing

• Recover the product within its stability window. Continuous centrifugation and solids-handling equipment support separation of cells and debris. Recovery capacity must be matched to broth volume and the product’s tolerance for processing hold times.
• Match concentration and purification to the molecule. Curia describes tangential flow filtration, including microfiltration, ultrafiltration and nanofiltration, alongside normal-phase, reverse-phase and ion-exchange chromatography with columns up to 500 L.
• Plan for solvents and analytical control. The overview covers distillation for solvent-based recovery, ATEX-rated infrastructure for operations involving flammable solvents, and analytical evaluation using HPLC, UPLC and LC-MS/MS. The appropriate process depends on product properties and impurity-removal requirements.

Download Navigating Downstream Processing for the four-stage workflow and comparison of aqueous and organic-solvent systems. Use it to frame discussions about recovery, purification and the infrastructure needed for scale-up.

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