Navigation Links
FERMENTATION BASICS

nconstrained fluid. The baffles produce a large planar liquid surface and a uniform flow pattern as well as increase the liquid hold-up for a given fermentor volume.

Surface-active substances such as antifoam agents reduce the oxygen transfer rate. In pure water, the bubble surface is constantly renewed through vibration and oscillation. As soon as surface-active substances are added, the renewal of the bubble surface by bubble movement ceases.

Microorganisms themselves have an effect on the oxygen transfer rate by acting as a barrier, thus inhibiting the O2 transfer. With filamentous microorganisms, there are variations depending on whether the mycelium is in loose form or in pellets. While the oxygen transfer rate decreases gradually as the pellets increases in size, there is a much steeper decline with loose forms.

The gas bubbles are replenished in locations of the bioreactor where there is negative pressure, such as behind the agitator blades. As the aeration rate increases, various conditions can be characterized. At low aeration rates, large gas bubbles form behind individual turbine blades and smaller bubbles are spun off centrifugally into the nutrient solution. As the aeration rate is increased, gass bubbles collect behind all turbine blades and continue to accumulate. The energy input is one-third less than that used in unaerated systems. In this intermediate stirring range, gas dispersion is the best. At very high aeration rates, many large gass bubbles adhere to each other and the impeller is flooded with gas, resulting in sharply lowered gas dispersion.

The critical oxygen concentration is the term used to indicate the value of the oxygen uptake rate or oxygen absorption rate which permits respiration without hindrance. Generally the critical oxygen concentrations
'"/>

Source:


Page: All 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Related biology technology :

1. P. pastoris Fermentation using a BioFlo 110 Benchtop Fermentor
2. E. coli Fermentation Using a BioFlo 110 Bench-Top Fermentor
3. Optimizing Your Benchscale Fermentation Process
4. High Yield Protein Production from Pichia pastoris Yeast: A Protocol for Benchtop Fermentation
5. Glossary for The BioPharm Guide to Fermentation and Cell Culture
6. Fundamentals of Fermentation: Techniques For Benchtop Fermentors
7. 140-Fold Increase of Protein Achieved in Pichia Fermentation
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: FERMENTATION BASICS

(Date:2/26/2015)... The Pittcon 2015 Exposition, which takes ... Morial Convention Center in New Orleans, Louisiana, will ... 2015) displaying products and services used by the ... The Exposition will offer the latest innovations in ... chemistry; drug discovery; nanotechnology; life sciences to include ...
(Date:2/26/2015)... February 26, 2015 Innovation is ... emerging from unexpected parts of the world and ... From agriculture to manufacturing to health care, disruption ... environmental realities and socio-political trends shake the foundations ... key ingredient for CEOs to survive the next ...
(Date:2/26/2015)... 26, 2015 According to a new ... Market For Transgenic Crops (Corn, Soybean, Cotton and Others), ... Size, Share, Growth, Trends and Forecast, 2013 – 2019,”the ... million in 2012 and is expected to reach USD ... 9.5% from 2013 to 2019. , Demand for ...
(Date:2/26/2015)... 2015 Regis Technologies announced new ... oncology drug substances. , Regis Technologies is proud to ... Potent Compound Suite (PCS) for 2015. , Regis is ... cGMP facility in Morton Grove, Illinois. The PCS addition ... compounds up to about one kilogram per batch. ...
Breaking Biology Technology:Pittcon 2015 Announces Exposition Highlights 2One Million Acts of Innovation Canada Creates Partnership with The Economist Events’ Innovation Forum 2Global Agricultural Biotechnology Market is Expected to Reach USD 28,694.1 Million in 2019 : Transparency Market Research 2Global Agricultural Biotechnology Market is Expected to Reach USD 28,694.1 Million in 2019 : Transparency Market Research 3Regis Extends cGMP Services to Oncology Market 2
... - From less than 1 million to 600 billion ... in the past 10 years. , ,From the beginning, ... providing better tools for finding, filtering and presenting online ... on the Web and also looking forward to a ...
... shot of MadCity Murder Mystery game Madison, ... professor at the UW-Madison School of Education, hopes to ... "augmented reality" games, which combine aspects of physical activity, ... ,Squire, working through the UW System and the ...
... ., a Wisconsin company specializing in functional Magnetic Resonance ... Food and Drug Administration (FDA) issued a Special 510(k) ... MindState fDAD had previously received clearance in February ... 510(k) allows Neurognostics to enhance fDAD by providing a ...
Cached Biology Technology:Internet Scout celebrates 10 years on web, eyes new project launch 2Augmented reality brings a new dimension to learning 2Augmented reality brings a new dimension to learning 3
(Date:2/13/2015)... 13, 2015 ACT Genomics Co., Ltd., ... to transform cancer genomic information into precision diagnosis ... has raised US$ 8 million in the its first ... Taipei, Taiwan , ACT Genomics has ... the aim to implement next generation sequencing (NGS) ...
(Date:2/9/2015)... Texas , Feb. 9, 2015  Lintec of ... fabrication methods for carbon nanotube (CNT) macrostructures, including sheets, ... at Dallas (UTD). Leveraging the vast industrial ... Tokyo, Japan , Lintec of America is ... Richardson, TX , focusing on scaling up ...
(Date:2/5/2015)... 27, 2015   Marvin Test Solutions ... innovative test solutions for military, aerospace, and ... its TS-323 GENASYS Test Platform ... GENASYS is a high-performance PXI-based system designed ... that require performance functional testing. GENASYS features ...
Breaking Biology News(10 mins):ACT Genomics Raises $8 Million in its First Private Funding Round 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 4Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 4
... MADISON, WI, JULY 21, 2011 -- Surface water quality ... as well as human needs and recreation. Pasturelands have ... and pathogens in Midwest surface water resources. While poor ... is known about the specific amount of pollution in ...
... program developed by a Penn State synthetic biologist could ... turn bacteria into molecular factories, capable of producing everything ... engineer designs a plane or a car," said Howard ... and chemical engineering. "When designing a biological organism, there ...
... When competing for food and resources, bacteria employ elaborate strategies ... a pathway that allows disease-causing bacteria to attack other bacterial ... aeruginosa is a type of bacteria readily found in ... of settings, including medical devices, body organs and skin wounds. ...
Cached Biology News:Grazing management effects on stream pollutants 2Software helps synthetic biologists customize protein production 2
The filter 640DF35 for the Molecular Imager FX is a band pass filter for Texas Red dye....
The filter 605DF50 for the Molecular Imager FX is a band pass filter for ethidium bromide, SYPRO Red, SYPRO Ruby, Alexa Fluor 532 and 546, and Cy3 dyes when using the 635 nm laser....
... BioGenex VISION Sytem is a highly ... with proprietary digital imaging and automation ... image acquisition, analysis, archving/retrieval and colored ... state-of-the-art digital imaging system that aids ...
... ApopTag Fluorescein Direct In Situ ... cells in situ by the ... fragments are tagged with a ... kit provides fluorescence staining for ...
Biology Products: