Fixed Bed Bioreactors

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What is a disadvantage of forced aeration in fixed bed bioreactors?

Water evaporation and substrate drying

Why are column reactors considered the most studied in the laboratory scale?

Minimization of temperature gradients

How is temperature control achieved in column reactors?

By placing the reactor in a bath or using tactical terms columns jacketed with circulating coolant

What advantage do column reactors have over tray reactors in terms of bacterial contamination?

<p>Associated with low bacterial contamination as they are closed systems</p> Signup and view all the answers

What is a challenge associated with the progress of fermentation in column reactors?

<p>Reduction in porosity of the bed</p> Signup and view all the answers

Which type of bioreactor is primarily used for the production of biomass such as cells, shoots, or roots?

<p>Bioreactors for biomass production</p> Signup and view all the answers

What type of bioreactor has been modified with a variety of impeller designs distinct from blade turbines for agitation?

<p>Conventional stirred tank reactor (STR)</p> Signup and view all the answers

Which type of bioreactor is used for the biotransformation of exogenously added metabolites?

<p>Bioreactors for metabolites and enzymes production</p> Signup and view all the answers

What type of bioreactor is fundamentally classified by agitation methods and vessel construction into mechanically agitated, rotating drum, and spin filter bioreactors?

<p>Conventional stirred tank reactor (STR)</p> Signup and view all the answers

Which type of bioreactor is specifically designed to allow better conditions for plant cell cultures, including a variety of impeller designs distinct from blade turbines for agitation?

<p>Conventional stirred tank reactor (STR)</p> Signup and view all the answers

What is the main focus of the study carried out by Prakash and Srivastava in the stirred tank bioreactor?

<p>Oxygen transfer efficiency of centrifugal impeller</p> Signup and view all the answers

What is the significant advantage of bubble columns for plant cell cultures, as mentioned in the text?

<p>Low shear stresses</p> Signup and view all the answers

In which type of bioreactor was the effect of elicitation with fatty acids investigated by Wu et al (2009)?

<p>Balloon-type bioreactor</p> Signup and view all the answers

What material is used to make the Bioreactor of Immersion by Bubbles developed by Soccol et al (2008)?

<p>Cylindrical Blindex® glass</p> Signup and view all the answers

What kind of impeller was used in the stirred tank bioreactor compared with the centrifugal impeller bioreactor in the study by Prakash and Srivastava?

<p>Setric impeller</p> Signup and view all the answers

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