OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1979 · 28 citations · 0 references
AgricultureFood ScienceMicrobiologyFermentation ScienceFood MicrobiologyMicrobial MetabolismFermentation KineticsFermentation MicrobiologyFood FermentationMicrobial BiofuelsMicrobial FermentationMicrobial GrowthFermentation Performance ScreeningFermentation Substrate UtilizationIndustrial Fermentation MicrobiologyKefir FermentationKefir MicrobiologyMicrobial Substrate UtilizationMixed Starter CulturesMixed-culture Fermentation
The production was evaluated of ethanol, acetone, and butanol from several different carbohydrate materials by five strains of Clostridia and two mixed cultures. The substrates, which were tested at concn ranging between 2.5 and 10% w/v, included pentoses, hexoses, disaccharides, and polysaccharides. The organisms used were Clostridium acetobutylicum strains NRRL B527 and NRRL B3179; Clostridium butylicum strains NRRL B592 and NRRL B593; and Clostridium pasteurianum strain NRRL B598. The mixed cultures contained all of these organisms. Mixed culture 1 contained in addition to the Clostridia, Klebsiella pneumoniae strain NRRL B427. Mixed culture 2 contained mixed culture 1 plus a yeast isolated from kefir culture. Where possible, maxima were found for the conversion of different substrates. 7 tables.