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Fermentation Control & Off-Gas Analysis Bioprocess Gas Monitoring

Fermentation Control with Real-Time Off-Gas Analysis & Bioprocess Gas Monitoring

Off-Gas Analysis for Fermentation Monitoring and Cell Culture Monitoring

Off-gas analysis is one of the most powerful tools available for understanding biological activity inside fermenters and bioreactors. By continuously measuring oxygen consumption and carbon dioxide production, manufacturers gain real-time visibility into metabolic activity, culture health, and process performance.

Process Insights solutions support:

  • Fermentation off-gas analysis
  • Bioreactor off-gas monitoring
  • Cell culture process monitoring
  • Continuous gas monitoring
  • Gas composition analysis
  • Online process analytics
  • Real-time bioprocess control

Continuous monitoring reduces reliance on manual sampling while providing faster, more accurate process insights that improve operational efficiency and product consistency. Real-time off-gas monitoring is widely used to characterize fermentation and cell culture processes while supporting process optimization and yield improvement.

What Can Be Measured?

Unlike conventional CO₂/O₂ analyzers, Process Insights systems simultaneously measure multiple gases from a single analyzer.

Typical gases include

  • Oxygen (O₂)
  • Carbon Dioxide (CO₂)
  • Nitrogen (N₂)
  • Argon
  • Hydrogen
  • Methane
  • Water Vapor
  • Additional process gases

Derived calculations include:

  • Oxygen Uptake Rate (OUR)
  • Carbon Dioxide Evolution Rate (CER)
  • Respiratory Quotient (RQ)
  • Gas utilization efficiency
  • Metabolic activity trends
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Fixed Magnetic Sector Mass Spectrometer

MGA 1200CS™

  • Up to 99–100 bioreactors
  • Simultaneous analysis of up to 16 gases
  • New analytical data approximately every 3 seconds
  • Low-flow sampling for small bioreactors
  • Automatic OUR, CER, and RQ calculations
  • CyberSecure Industry 4.0 architecture
  • Optimize microbial fermentation
  • Improve mammalian cell culture performance
  • Detect metabolic changes immediately

    Quadrupole Mass Spectrometer

    MAX300-BIO™

    • Laboratory research
    • Process development
    • Pilot-scale fermentation
    • Production fermenters
    • PPT detection limits
    • Analysis time in seconds
    • Multiport sample systems for total site monitoring

      Applications

      Microbial Fermentation

      Monitor:

      • Antibiotics
      • Industrial enzymes
      • Amino acids
      • Vitamins
      • Bio-based chemicals
      • Precision fermentation
      • Alternative proteins
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      Mammalian Cell Culture

      Optimize production of:

      • Monoclonal antibodies
      • Vaccines
      • Recombinant proteins
      • Cell therapies
      • Gene therapies

      Precision Fermentation

      Support production of:

      • Alternative dairy proteins
      • Cultivated food ingredients
      • Specialty enzymes
      • Sustainable biomaterials