The performance of airlift bioreactors are closely related with their geometry, especially the gas-liquid separator design. In this study, the influence of the gas-liquid separator geometry on oxygen transfer and gas hold-up was evaluated in 10-L concentric-tube airlift bioreactor operating with distilled water and xanthan gum solution. The specific airflow rate (ɸAIR) exhibited the higher effe...

selected genotypes of sugar beet are often maintained by conventional propagation, but much faster rates of multiplication can be now obtained through micropropagation. on the other hand, plant micropropagation using bioreactors can decrease the cost of production and makes it an economical method. in this research, the possibility of using bioreactor and optimization of the tissue culture proc...

Hypoallergenic antibacterial low-molecular-mass peptides were produced from defatted soybean meal in a membrane bioreactor. In the first step, soybean meal proteins were digested with trypsin in the bioreactor, operated in batch mode. For the tryptic digestion of soybean meal protein, optimum initial soybean meal concentration of 75 g/L, temperature of 40 °C and pH=9.0 were determined. After en...

Liquid marbles can be used as micro-bioreactors, thanks to their unique properties. On the one hand, the highly porous, non-adhesive, and hydrophobic shell of liquid marbles efficiently inhibits any direct contact between the liquid core of the marble and the surface that supports it, while allowing oxygen and carbon dioxide to pass through. On the other hand, the finite volume of liquid in liq...

Galway, Ireland Tubular Hybrid Scaffolds for Ureter Tissue Engineering: A Dynamic Culture within a Tissue Bioreactor Eva-Maria Engelhardt, Lionel Micol, Jöns Hilborn, Jeffrey Hubbell, Peter Frey Corresponding Author: [email protected] Laboratory for Regenerative Medicine and Pharmacobiology, EPFL, Lausanne, Switzerland Department of Materials Chemistry, Polymer Chemistry, University of Uppsala...

An analysis of the local processes occurring in a trickle-bed bioreactor (TBB) with a first-order bioreaction shows that the identification of the TBB operating regime requires knowledge of the substrate concentration in the liquid phase. If the substrate liquid concentration is close to 0, the rate-controlling step is mass transfer at the gas-liquid interface; when it is close to the value in ...

Liquid sloshing is a common phenomenon in the transporting of liquid tanks. Liquid waves lead to fluctuating forces on the tank wall. If these fluctuations are not predicted or controlled, they can lead to large forces and momentum. Baffles can control liquid sloshing fluctuations. One numerical method, widely used to model the liquid sloshing phenomena is Smoothed Particle Hydrodynamics (SPH)....

In this work, the melting process of compounds containing nanoparticles of NePCM in a square hole with different angles affected by two pairs of well-spring heat source on horizontal walls was numerically investigated. Four different configurations of elements were employed to investigate the effect of changes in the position of elements on the horizontal walls of the well-spring landscape on t...

Improvements in technology for the production of microbial biomass from natural gas, which have been gaining importance recent years, require development and optimization energy-efficient bioreactor designs. The most advanced methods developing scaling up industrial biotechnological processes rely on detailed hydrodynamic modeling, addition to classical approaches, as main tool analysis large-s...