Cytiva BioProcess pcc 1/2″ Periodic Counter-Current Chromatography System

Overview

The Cytiva BioProcess pcc 1/2″ is an industrial-scale periodic counter-current chromatography (PCC) system engineered for continuous, high-efficiency purification of biopharmaceutical proteins in late-stage process development and commercial manufacturing. Unlike conventional batch chromatography, PCC operates on a cyclic, multi-column principle where loading, washing, elution, and regeneration occur simultaneously across discrete columns—enabling near-continuous product flow while maximizing resin utilization. This system implements the fundamental principles of counter-current solid–liquid mass transfer under precisely controlled flow dynamics and gradient programming, delivering consistent binding capacity utilization (>85% typical), reduced buffer consumption (up to 40% less vs. batch), and smaller column footprints without compromising purity or yield. Designed for seamless integration into end-to-end bioprocess trains, the BioProcess pcc 1/2″ serves as a pivotal unit operation bridging upstream bioreactor output and final formulation—particularly critical for labile monoclonal antibodies, Fc-fusion proteins, and viral vectors requiring minimized residence time and thermal exposure.

Key Features

• Scalable PCC architecture supporting both 3-column (3C) and 4-column (4C) configurations to accommodate varying throughput demands and process robustness requirements
• Dual-control software compatibility: Fully operable with Cytiva’s UNICORN™ 7.x or Emerson DeltaV™ DCS—enabling native integration into existing automation infrastructures and supporting electronic batch records (EBR)
• Real-time performance monitoring with integrated pressure, UV, conductivity, pH, and temperature sensors at all critical fluidic nodes
• Modular fluidic design compliant with ASME BPE-2021 surface finish standards (Ra ≤ 0.4 µm) and single-use interface options for hybrid processing
• Pre-validated hardware modules—including peristaltic pumps, fraction collectors, and valve manifolds—qualified per IQ/OQ protocols for GMP environments
• Configurable column diameter support up to ½ inch (12.7 mm) ID, optimized for packed-bed resins including Protein A, ion exchange, and multimodal media

Sample Compatibility & Compliance

The BioProcess pcc 1/2″ is validated for purification of recombinant therapeutic proteins expressed in CHO, E. coli, and insect cell systems. It maintains compatibility with standard chromatographic resins (e.g., MabSelect SuRe LX, Capto Core 700, Capto Q ImpRes) and accommodates feed streams with turbidity up to 5 NTU and viscosity ≤ 5 cP. Regulatory alignment includes support for FDA 21 CFR Part 11-compliant electronic signatures and audit trails when deployed with UNICORN™ in secure network mode. The system meets ISO 13485:2016 design controls requirements and aligns with ICH Q5A(R2), Q5B, and Q5D for product-related impurity clearance validation. All wetted materials conform to USP Class VI biocompatibility testing and EU 10/2011 food-contact compliance for auxiliary components.

Software & Data Management

UNICORN™ software provides method-driven operation with embedded PCC-specific sequence templates, real-time overlay of breakthrough curves, and automatic cycle synchronization logic. DeltaV™ integration enables centralized alarm management, historian data archiving (via DeltaV DASS), and MES-level connectivity through OPC UA. Both platforms generate timestamped, tamper-evident log files containing raw sensor data, valve actuation events, and parameter setpoints—retained for ≥30 days by default and exportable in CSV or ASTM E2500-compliant formats. Audit trail functionality satisfies ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) for regulatory inspections.

Applications

• Continuous capture of monoclonal antibodies using Protein A PCC with integrated low-pH virus inactivation hold steps
• Polishing of bispecific antibodies via sequential anion-exchange and hydrophobic interaction PCC
• Downstream processing of AAV vectors with size-exclusion and affinity PCC to reduce empty capsid content
• Process intensification studies comparing PCC vs. batch elution for host cell protein (HCP) clearance kinetics
• Technology transfer from ÄKTA pcc benchtop systems (1 mL–5 mL column scale) to BioProcess pcc ½” (100–500 mL resin volume) using geometric and dynamic similarity scaling rules

FAQ

What is the maximum recommended resin volume for the BioProcess pcc 1/2″ system?

The system is rated for packed-bed volumes between 100 mL and 500 mL, depending on column length, resin compressibility, and operational flow rate constraints.
Can the system operate under fully automated unattended mode for extended campaigns?

Yes—when configured with UNICORN™ AutoRun and connected to a validated UPS and environmental monitoring system, it supports 72-hour continuous operation with automated fraction collection and cycle logging.
Is cleaning-in-place (CIP) protocol validation included in the standard delivery package?

CIP method templates are provided in UNICORN™; however, site-specific validation (including hold time studies and bioburden recovery testing) must be performed per client’s quality system requirements.
Does Cytiva provide regulatory documentation for installation qualification (IQ) and operational qualification (OQ)?

Yes—factory-verified IQ/OQ protocols and executed reports are supplied with each system, aligned with Annex 15 and ASTM E2500-07 guidelines.