Yusuf Chisti

Biodiesel from microalgae

<i>Botryococcus braunii</i>: A Renewable Source of Hydrocarbons and Other Chemicals

Botryococcus braunii, a green colonial microalga, is an unusually rich renewable source of hydrocarbons and other chemicals. Hydrocarbons can constitute up to 75% of the dry mas...

Airlift-driven external-loop tubular photobioreactors for outdoor production of microalgae: assessment of design and performance

A process for high yield and scaleable recovery of high purity eicosapentaenoic acid esters from microalgae and fish oil

Animal-cell damage in sparged bioreactors

A mechanistic model of photosynthesis in microalgae

Abstract A dynamic model of photosynthesis is developed, accounting for factors such as photoadaptation, photoinhibition, and the “flashing light effect.” The model is shown to ...

Liquid circulation in airlift reactors

Hydrodynamic Damage to Animal Cells

Animal cells are affected by hydrodynamic forces that occur in culture vessel, transfer piping, and recovery operations such as microfiltration. Depending on the type, intensity...

Sonobioreactors: using ultrasound for enhanced microbial productivity

Pneumatically Agitated Bioreactors in Industrial and Environmental Bioprocessing: Hydrodynamics, Hydraulics, and Transport Phenomena

Major aspects of design and operation of pneumatically agitated bioreactors are reviewed. The focus is on considerations that are relevant to industrial practice. Airlift biorea...

On the calculation of shear rate and apparent viscosity in airlift and bubble column bioreactors

Clean-in-place systems for industrial bioreactors: Design, validation and operation

Guidelines for design, validation and operation of clean-in-place systems for industrial fermentation plant are presented. Design of vessels, surface finishes, materials of cons...

Mixing in bubble columns: a new approach for characterizing dispersion coefficients

Mass transfer in external‐loop airlift bioreactors using static mixers

Abstract The influence of static mixers on the overall gas‐liquid volumetric mass transfer coefficient ( K L a L ) was examined in an external‐loop type airlift bioreactor (appr...

Prediction of liquid circulation velocity in airlift reactors with biological media

Abstract A method is developed and demonstrated for the prediction of liquid circulation velocity in airlift bioreactors operating with pseudoplastic fluids, including mould sus...