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Fiber Chromatography Clarification

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Next-generation harvest and clarification technology

Increasing cell densities and titers are reshaping harvest workflows, placing added pressure on clarification and introducing variability that can affect downstream process (DSP) operations. As processes intensify, managing solids, DNA, and soluble impurities without expanding clarification trains can become more complex. Our next-generation harvest and clarification technology leverages functionalized fibers for charge-based separation, consolidating clarification into a single-stage operation.

Intensify harvest with a next-gen clarification platform

Adopt the Harvest RC Chromatographic Clarifier platform for next-generation harvest and clarification. The Harvest RC clarifier platform enables single-stage, single-media-grade solutions: one for direct clarification and one for centrate clarification. Typical product recoveries >95%, turbidity reduction to <15 NTU, and DNA reduction to <500 ppb support consistent clarified fluid quality across configurations. This platform can compress clarification process chains while supporting consistent and comparable effluent quality.

Direct and centrate clarification approaches

Select a chromatographic approach based on how solids are managed upstream and how clarification integrates with existing infrastructure. Direct clarification and centrate clarification represent two common approaches.

Direct clarification

Apply a single-stage clarification solution to cell culture fluid from bioreactors using quaternary ammonium (Q) anion exchange (AEX) fibrous media combined with a 0.2 μm PES membrane. The Harvest RC Chromatographic Clarifier captures cells, debris, and soluble impurities in one operation.

Centrate clarification

Replace traditional depth filtration for centrate clarification using the Harvest RC Centrate Chromatographic Clarifier. The solution captures cellular debris and other insoluble and soluble impurities during centrate clarification.
 

Choose the right clarification platform for your needs

The choice between direct clarification and centrate clarification is based on upstream configuration and solids management strategy. Cell density, impurity profile, facility infrastructure, throughput targets, and desired clarified fluid quality should be considered when selecting the appropriate platform.

 

Table 1. Compare clarification platforms

 

  Harvest RC Chromatographic Clarifier Harvest RC Centrate Chromatographic Clarifier
Type of clarification Direct clarification Centrate clarification
Technology platform Quaternary amine (Q) functionalized polypropylene nonwoven
  • Quaternary amine (Q) functionalized polypropylene nonwoven
  • Quaternary amine (Q) functionalized highly asymmetric 0.2 µm polyamide membrane
Mechanism Anion exchange (AEX) chromatography AEX
Materials Synthetic Synthetic
Feedstream Direct harvest and clarification Centrate clarification
Scalability Linear scalability from lab to multi-capsule commercial production (including screening tools) Linear scalability from lab to multi-capsule commercial production
Water-flushable Yes Yes
Features
  • High mAb product recovery (>95%)
  • Turbidity reduction (<15 NTU)
  • DNA reduction (<500 ppb)
  • Cell shear minimization
  • Sterile filter protection to 0.1 μm
  • High mAb product recovery (>95%)
  • Turbidity reduction (<15 NTU)
  • DNA reduction (<500 ppb)
  • Cell shear related submicron
  • Sterile filter protection to 0.1 μm
Learn more

Harvest RC Chromatographic Clarifier

Harvest RC Centrate Chromatographic Clarifier

 

Recombinant protein clarification approaches

Design recombinant protein harvest workflows to balance impurity reduction with product recovery as upstream processes intensify. Fiber chromatographic clarification uses charge-based separation under defined pH and conductivity conditions to retain negatively charged soluble contaminants, DNA, and debris while allowing target proteins to flow through. This approach supports clarification strategies focused on maintaining yield, managing variability, and conditioning feedstreams for downstream purification in recombinant protein manufacturing.

Infographic showing charge-based separation in fiber chromatography for recombinant protein clarification.

Reliable clarification performance across scales

As harvest workflows move from development to manufacturing, maintaining clarified fluid quality becomes increasingly important. Chromatographic clarification is designed to scale predictably, helping teams maintain the same separation behavior across volumes and sites. This consistency helps reduce variability during scale-up and scale-out across sites or manufacturing footprints as processes transition into clinical and commercial production.

Protecting downstream purification and sterile filtration

Address cells, debris, DNA, and soluble contaminants early during clarification to help condition harvest streams for downstream processing. Managing these components upstream helps stabilize feedstream quality and impurity load, supporting more consistent downstream chromatography performance. Performance characteristics, such as clarified fluid turbidity, DNA levels, and sterile filter protection, are influenced by the clarification strategy and are detailed in product information sheets.

Ordering information

Frequently asked questions

Chromatographic clarification is commonly evaluated as harvest workflows evolve toward higher cell densities and intensified upstream conditions, where conventional size-based clarification alone may become limiting. It can consolidate clarification steps by enabling removal of both soluble and insoluble impurities, including submicron particle populations, while simplifying process design. This approach is often considered during process development and scale-up to support consistent clarified fluid quality, downstream filtration, and chromatography across development and manufacturing stages.

Chromatographic clarification leverages charge-functionalized fibrous media to retain negatively charged soluble and insoluble impurities while the target molecule flows through, conditioning harvest streams for downstream processing. In contrast, depth filtration relies primarily on size-based retention and mechanical entrapment within a porous matrix.

In certain workflows, chromatographic clarification can consolidate clarification steps by removing cells, cell debris, and soluble impurities through charge-based interactions in a single operation. When feedstream characteristics allow, this approach may reduce reliance on centrifugation or multi-stage depth filtration and is typically evaluated during process development or scale-up.

Fiber chromatographic clarification supports scale-up and technology transfer by using a consistent platform and separation mechanism across process scales. Linear scalability and single-use formats help teams apply the same clarification approach from lab through manufacturing. This platform's consistency reduces variability between sites, simplifies scale-out decisions, and helps lower risk as processes move through development, clinical production, and commercial manufacturing.

Fiber chromatography performance during harvest is influenced by upstream and operating conditions. Performance can be impacted by feedstream composition, including solids and impurity load, often characterized by packed cell volume and turbidity.

Explore related clarification technologies

Evaluate fiber chromatographic clarification as part of an integrated harvest strategy that often combines multiple clarification technologies. Approaches are selected and sequenced based on solids load, impurity profile, and workflow design.
 

In some processes, single-use centrifuge systems may be applied upstream to reduce solids prior to chromatographic clarification. Depth filtration may be used in complementary configurations.
 

Understanding how these technologies work together within broader harvest and clarification workflows helps teams select clarification strategies that meet downstream needs and process goals.

Discover filtration resources

Explore optional resources designed to support a deeper understanding of bioprocess filtration topics and decision-making considerations. Available materials include technical documents, webinars, and educational content that address practical applications, emerging trends, and process challenges across bioprocessing workflows. 

Explore the School of Purification

Gain practical insights into filtration, purification strategy, technology transfer, and emerging therapeutic applications.

 

Whether you are strengthening foundational knowledge or evaluating approaches for process development and manufacturing, the School of Purification supports ongoing learning across bioprocessing workflows.

Apply next-generation technology to harvest workflows

Intended use of the products mentioned on this page vary. For specific intended use statements, please refer to the Instructions for Use for the product.