Process for obtaining ethanol by bioprocessing glycerol derived from biodiesel using wild escherichia coli and atcc 25922

摘要

Process for obtaining ethanol by bioprocessing biodiesel-derived glycerol using wild escherichia coli and atcc 25922. The present invention relates to the production of ethanol from anaerobic fermentation of crude glycerol by strains of the wild (sp) escherichia coli bacterium. Broken stream in Guarapuava - Parana, Brazil (geographic coordinates of latitude 25 ° 21 '06 "to 25" 24´22 "s and 51 ° 25' 03" to 51 ° 31'02 "w), and" certified "(atcc 25922 Ethanol is obtained by this process by fermentation using different nutrients and using certain strains of E. coli certified and sp using crude glycerol in ph 12, specific mass of 1.029 g / cm³ and percentage of ethanol and methanol (less than The pH of the nutrient media was adjusted to 7. Biotransformation by both Escherichia coli sp and Escherichia coli atcc 25922 allows the minimization of the environmental problem generated by the glycerol co-product. l from biodiesel plants. The ethanol produced can be used industrially either in the transesterification process itself for biodiesel production or as bioethanol for cleaning, sterilization or as automotive biofuel.