Bioreactor Design
Bioreactor Design - Related Videos
01:29
Bioreactor Design and Operational System
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2026
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...
08:04
Design of a Biaxial Mechanical Loading Bioreactor for Tissue Engineering
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Cited by 24 •
2013
We designed a novel mechanical loading bioreactor that can apply uniaxial or biaxial mechanical strain to a cartilage biocomposite prior to transplantation into an articular cartilage defect.
01:30
Designing Growth Media for Bioreactors
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2026
Growth media provide essential nutrients that support cell growth and metabolism, thereby enhancing the yield of valuable products such as enzymes, antibiotics, and biomass. Designing an effective growth medium involves balancing all components to prevent nutrient limitations or toxic excesses, both of which can impair growth and reduce product yields.Composition of a Typical Growth MediumA typical growth medium contains carbon and nitrogen sources, salts, vitamins, trace elements, and...
12:54
Operation of a Benchtop Bioreactor
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Cited by 9 •
2013
Fermentors are used to increase culture yield and productivity of bioengineered cells. After screening multiple microbial or animal cell culture candidates in shake flasks, the next logical step is to increase the selected culture’s biomass with the fermentor. This video demonstrates the setup and operation of a typical benchtop bioreactor system.
09:40
Batch and Continuous Bioreactors
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2023
Bioreactors are used to grow organisms in large volumes, thereby enabling the production of mass quantities of the target product. These reactors can be batch reactors, which contain all of the components needed for cell growth, or continuous reactors, which have inlet and outlet ports allowing for the addition of fresh growth media and the removal of cell waste. This video presents batch and continuous reactors and demonstrates the use of bioreactors to grow bacteria in the laboratory.
FAQs
Agitation distributes nutrients and heat throughout the vessel, reducing local differences that could expose cells, enzymes, or microorganisms to uneven conditions. Reactor geometry and mixing behavior therefore affect how consistently biological material experiences the intended environment. This consistency supports reproducible growth and production, especially when operating conditions must be maintained across the system.
Gas transfer has two linked functions: supplying oxygen and removing metabolic gases. Dissolved-oxygen control keeps oxygen availability within the intended operating conditions, while aeration provides the gas input needed for that control. Together, these features affect cell growth and productivity, making gas-transfer performance a central design consideration for biological production.
Bioreactor design uses sensors to measure controlled conditions and feedback systems to adjust operation toward target values. This arrangement links monitoring with active control of temperature, pH, and dissolved oxygen rather than treating them as fixed assumptions. Maintaining targets supports reproducibility and can influence cell growth, productivity, product quality, and sterility.
A design that performs well in laboratory experiments must account for geometry, mixing, aeration, temperature, pH, and dissolved oxygen when moving toward manufacturing. Maintaining these controlled conditions helps preserve reproducibility, product quality, and productivity beyond the original experimental setting. Scale-up therefore connects reactor engineering with the practical requirements of larger biological production systems.
Design performance is judged by whether the system maintains intended conditions while supporting the desired biological outcome. Relevant outcomes include cell growth, productivity, product quality, and sterility. These measures provide practical criteria for comparing reactor configurations and operating systems in both laboratory experiments and manufacturing contexts.
Bioreactor design supports microbial fermentation, mammalian-cell culture, tissue engineering, and production of vaccines, therapeutic proteins, biofuels, and other bioproducts. These applications share the need for controlled biological conditions but may differ in the intended product and biological system. Design choices therefore connect engineering decisions with the requirements of a particular bioengineering application.
The biological material may consist of cells, enzymes, or microorganisms, so the controlled reaction can serve different scientific and production goals. The engineering framework supports microbial fermentation, mammalian-cell culture, and tissue engineering, while applications include vaccines, therapeutic proteins, biofuels, and other bioproducts. This context helps relate reactor choices to the intended biological outcome.