PH electrode / ORP
Broadley-James

Characteristics

  • Measured value:

    pH, ORP

Description

Redox FermProbes ®

• Fits all suitable FermProbe housings

• Works with standard FermProbe cables

• Compatible with pH transmitters that have a millivolt
display mode, such as the Models 30, 40, and 50

Reasons to Measure Redox in Fermentation Media

The metabolic activity of microorganisms depends on many factors, including the redox potential of the culture environment. Measuring the redox potential allows the vessel operator to monitor the addition of reducing agents while ensuring that the potential is in the proper range for initiation of growth. It is also important to monitor the redox potential just before inoculation.

Anaerobic fermentation
Redox sensors are most commonly used to maintain anaerobic conditions in a culture media. They can be used to measure trace amounts (<1 ppm) of dissolved oxygen, at levels that are too low for D.O. sensors.

Downstream Processing
Sometimes used in steps performed downstream of the fermentation process, redox sensors can monitor changes in concentration or the absence or presence of specific chemicals. Monitoring the redox potential is an effective way of tracking chemical conversions in the process.

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