When In Brazil, Under The Wires Put Your Still


Clause reversal happens with translation to English. And elsewhere. You'd think we TreeHuggers would like to stay as far away was we can from EMF. But, Brazilian researchers have determined that a dose of low frequency electromagnetic radiation will can boost ethanol production up to 17%. Hence the notion to locate the fermenter under the high tension wire rack. A pretty good land use compatibility too. So, as we've said once before "Let The Power Be With Us."

"In a new study, Victor Perez and colleagues showed that yeast-based fermentation of sugar cane -- the main source of bioethanol in Brazil -- in the presence of extremely low frequency magnetic waves boosted ethanol production by 17 percent. The scientists also showed that ethanol production was faster, taking two hours less than standard fermentation methods.

Article: "Bioreactor Coupled with Electromagnetic Field Generator: Effects of Extremely Low Frequency Electromagnetic Fields on Ethanol, Production by Saccharomyces cerevisiae" ACS' Biotechnology Progress, October 5, 2007. Via::Science Daily Image credit:: yeast cells, BiodMed. Full abstract beneath the fold.Biotechnol. Prog., ASAP Article 10.1021/bp070078k S8756-7938(07)00078-1
Web Release Date: July 31, 2007
Copyright © 2007 American Chemical Society and American Institute of Chemical Engineers

Bioreactor Coupled with Electromagnetic Field Generator: Effects of Extremely Low Frequency Electromagnetic Fields on Ethanol Production by Saccharomyces cerevisiae

Victor H. Perez,* Alfredo F. Reyes, Oselys R. Justo, David C. Alvarez, and Ranulfo M. Alegre

Department of Food Engineering, School of Food Engineering, State University of Campinas, Brazil

Received March 22, 2007. Accepted June 29, 2007.


The effect of extremely low frequency (ELF) magnetic fields on ethanol production by Saccharomyces cerevisiae using sugar cane molasses was studied during batch fermentation. The cellular suspension from the fermentor was externally recycled through a stainless steel tube inserted in two magnetic field generators, and consequently, the ethanol production was intensified. Two magnetic field generators were coupled to the bioreactor, which were operated conveniently in simple or combined ways. Therefore, the recycle velocity and intensity of the magnetic field varied in a range of 0.6-1.4 m s-1 and 5-20 mT, respectively. However, under the best conditions with the magnetic field treatment (0.9-1.2 m s-1 and 20 mT plus solenoid), the overall volumetric ethanol productivity was approximately 17% higher than in the control experiment. These results made it possible to verify the effectiveness of the dynamic magnetic treatment since the fermentations with magnetic treatment reached their final stage in less time, i.e., approximately 2 h earlier, when compared with the control experiment.

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