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Related Concept Videos

Bioreactor Controls-I01:28

Bioreactor Controls-I

Maintaining optimal conditions within fermenters is essential for maximizing microbial productivity and ensuring process efficiency. This lesson focuses on key parameters—temperature, foam, pH, carbon dioxide, oxygen, and pressure—and their precise measurement and control strategies in fermentation systems.Temperature ControlTemperature regulation is critical due to the exothermic nature of many fermentation processes. In small laboratory fermenters, temperature is commonly monitored using...
Bioreactor Design and Operational System01:29

Bioreactor Design and Operational System

Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
Bioreactor Controls-II01:18

Bioreactor Controls-II

In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...
Bioreactor Controls-III01:22

Bioreactor Controls-III

Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Scale-Up Processes01:14

Scale-Up Processes

The scale-up of microbial fermentation processes is essential in industrial biotechnology, allowing the transition from laboratory-scale experiments to commercial-scale production while aiming to maintain product yield and quality. This process requires meticulous adjustment of equipment design, process parameters, and contamination control strategies to accommodate increasing culture volumes.At the laboratory scale, cultures are typically maintained in 1 to 10-liter glass or autoclavable...
Microbial Fermentation01:23

Microbial Fermentation

Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...

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Related Experiment Video

Updated: Jul 4, 2026

Workflow Based on the Combination of Isotopic Tracer Experiments to Investigate Microbial Metabolism of Multiple Nutrient Sources
12:47

Workflow Based on the Combination of Isotopic Tracer Experiments to Investigate Microbial Metabolism of Multiple Nutrient Sources

Published on: January 22, 2018

A minicomputer system for analyzing and reporting pilot plant fermentor data.

L Bowski1, C R Perley, J M West

  • 1Biotechnology Process Development, Technical Development Department, Chemical Division R & D, Hoffman-La Roche, Inc, Nutley, New Jersey 07110, USA.

Biotechnology and Bioengineering
|May 1, 1983
PubMed
Summary

A minicomputer system enhanced pilot-plant fermentation data analysis and reporting. This system improved personnel productivity and experimental design through advanced graphical output and data acquisition.

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Last Updated: Jul 4, 2026

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Microfluidic Picoliter Bioreactor for Microbial Single-cell Analysis: Fabrication, System Setup, and Operation

Published on: December 6, 2013

Area of Science:

  • Biotechnology
  • Chemical Engineering
  • Computer Science

Background:

  • Pilot-plant fermentation processes generate large datasets.
  • Efficient data analysis and reporting are crucial for process optimization.
  • Early systems lacked integrated on-line capabilities.

Purpose of the Study:

  • To describe a minicomputer system for on-line analysis and reporting of pilot-plant fermentor data.
  • To evaluate the system's impact on productivity and experimental design.
  • To detail the system's hardware, software, and data acquisition capabilities.

Main Methods:

  • Implementation of a PDP 11/60 minicomputer system with specific peripherals.
  • Utilized RSX-11M operating system for real-time data acquisition and processing.
  • Employed AIM system for signal conversion and ABEC/Versatec programs for analysis and graphical output.

Main Results:

  • The system successfully provided on-line analysis and reporting for 16 fermentors.
  • Graphical output of data significantly increased personnel productivity and improved experiment design.
  • Ancillary function enabled remote data acquisition from a production plant via modem.

Conclusions:

  • The developed minicomputer system effectively addressed the need for integrated data analysis in pilot-plant fermentation.
  • Graphical data presentation was a key factor in enhancing operational efficiency and research outcomes.
  • The system demonstrated flexibility by integrating remote production data.