Date of Award
2013
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Chemical and Material Engineering
Subject(s)
Anaerobic bacteria, Biodiesel fuels, Biomass energy
Abstract
Butanol is of particular interest as a renewable biofuel. This research investigated the butanol extraction by converting purified glycerol into butanol using C. pasteurianum. The effects of three organic extractive reagents were studied to assess their use in extractive fermentation of butanol. High toxicity was shown by octanol, inhibiting cell growth. Oleyl alcohol not only appeared to be non-toxic but also yielded high butanol concentrations. Methyl oleate seemed to be corrosive to the flasks used in the fermentation process. The maximum butanol yield produced using oleyl alcohol as extractive solvent was 0.436 g/g; this value was higher than any other seen in previous studies using C. pasteurianum. Therefore, oleyl alcohol can be considered a useful extracting solvent in anaerobic fermentations of purified glycerol into butanol byClostridium pasteurianum ATCC 6013TM.
Recommended Citation
Piernavieja Hermida, Mar, "Response of Clostridium pasteurianum ATCC 6013 to the presence of solvents for extractive butanol fermentation" (2013). Theses. 10.
https://louis.uah.edu/uah-theses/10