Increase of Saccharomyces cerevisiae plating efficiency after treatment with bipolar electric pulses

Fermentation Assisted by Pulsed Electric Field and Ultrasound: A Review

“…The application of a low intensity treatment at low electric field strength and/or pulse number, through initiating a conductive channel across the membrane, does not cause irreversible cell rupture. The variation in the endogenous membrane potential by an external field impacts the structure and function of the membrane compartments, proteins, and lipid bilayer, which allows the extraction of intracellular compounds [56].…”

Glutathione production using magnetic fields generated by magnets

“…Stimulation or inhibition of cellular processes by the magnetic fields (MF) are of considerable interest in cell biology and biotechnology for not only establishing the basic mechanisms of this interaction but also its potential practical applications (Lei and Berg 1998). Depending on the shape and values of characteristic parameters (intensity, frequency, length or time constant in the case of impulses), different effects appears (Fologea et al 1998). The inhibition or stimulation of the vital activity of microorganisms can be obtained by selecting the appropriate parameters of the MF (Pichko and Povalyaeva 1996).…”

“…The mechanism of the stimulation is not yet known. It might be connected with some changes at the membrane level, because many transmembrane flows are enhanced (Fologea et al 1998). Under laboratory conditions, a variety of biological responses can be induced by exposure to MF.…”

Effects of cell orientation and electric field frequency on the transmembrane potential induced in ellipsoidal cells

“…field strength, pulse duration, number of pulses [6,[10][11][12][13][14][15][16][17] and pulse shape [18][19][20]. Cell size, shape and orientation, medium conductivity and temperature are also important [6,[21][22][23].…”