Fed Batch Culture
Fed Batch Culture - Related Videos
01:23
Fed-Batch Culture
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2026
Fed-batch culture is a widely used bioprocessing strategy combining aspects of batch culture with controlled substrate feeding to optimize cell growth and product formation. In this semi-closed system, nutrients are strategically added during fermentation, while the accumulated products and biomass remain within the bioreactor until the end of the operation. This controlled addition of substrates allows for better management of growth kinetics, nutrient limitation, and metabolite...
01:14
Batch vs Continuous Culture
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2026
Fermentation is a foundational biotechnological process used to produce pharmaceuticals, biofuels, enzymes, and food additives. Among industrial strategies, batch and continuous fermentation are the two most widely applied. Although both rely on microbial conversion of substrates into desired products, they differ markedly in operation, productivity, and suitability for specific applications.Batch fermentation occurs in a closed system in which nutrient media and inoculum are added at the...
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.
02:29
Antibody Production from a Batch Overgrowth Culture of Transfected Mammalian Cells
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2025
The video demonstrates a method for producing therapeutic antibodies using stably transfected mammalian cells. Tryptone supplementation stimulates cell division, resulting in overgrowth and supporting a higher antibody yield. The antibody-containing medium is harvested, filtered, and stored for further use.
08:07
Batch Immunostaining for Large-Scale Protein Detection in the Whole Monkey Brain
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Cited by 5 •
2009
Large-scale immunodetection of target proteins across the entire primate brain is possible by employing novel tissue embedding and sectioning methods combined with the use of creative apparatus for batch staining of multiple free-floating sections at a given time.
FAQs
Feed rates are adjusted to keep nutrients available without creating unfavorable cultivation conditions. Measurements of biomass, dissolved oxygen, pH, or substrate concentration provide signals about how cells or microorganisms are responding. Linking those measurements to feeding decisions helps regulate growth, metabolism, oxygen demand, and by-product formation, rather than allowing nutrient availability to change without control.
Controlled feeding changes more than nutrient supply: it can influence the balance between growth and product formation. By maintaining favorable nutrient levels, the process can support high cell densities while limiting conditions associated with unwanted by-products. This matters because cell growth, metabolic activity, oxygen demand, and product formation are interconnected during biological cultivation.
Compared with simple batch culture, the fed-batch approach provides an additional control point during cultivation: nutrient input can be modified as the culture develops. That flexibility can improve control of growth and metabolism and may support better productivity, consistency, and scale-up performance. The distinction is therefore operational control, not merely the vessel or the biological system.
A practical control workflow begins by cultivating the cells or microorganisms in a contained vessel, then monitoring biomass, dissolved oxygen, pH, or substrate concentration. Those observations inform adjustments to the nutrient feed during the run. Because broth is not continuously removed, the process focuses on changing input conditions while preserving the cultivated culture in the vessel.
Researchers select Fed Batch Culture when they need high cell densities or controlled production of biological products. The approach is used in work involving proteins, vaccines, enzymes, metabolites, and other biomolecules. Its value extends beyond growth: controlled cultivation can improve productivity and consistency, making the process relevant to biological manufacturing and biotechnology studies.
In biology, the method connects cellular physiology with process control. Cells or microorganisms respond to changing nutrient availability, while measurements such as dissolved oxygen, pH, biomass, and substrate concentration reveal the culture’s state. Adjusting the feed in response allows investigators to study or manage growth and metabolism under conditions designed for a target biomolecule or cultivation outcome.