Journal
BRAZILIAN JOURNAL OF MICROBIOLOGY
Volume 43, Issue 2, Pages 506-516Publisher
SOC BRASILEIRA MICROBIOLOGIA
DOI: 10.1590/S1517-83822012000200011
Keywords
Glycerol; anaerobic fermentation; bioethanol; Escherichia coli SS1
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Funding
- Grants-in-Aid for Scientific Research [22780070] Funding Source: KAKEN
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Bioconverting glycerol into various valuable products is one of glycerol's promising applications due to its high availability at low cost and the existence of many glycerol-utilizing microorganisms. Bioethanol and biohydrogen, which are types of renewable fuels, are two examples of bioconverted products. The objectives of this study were to evaluate ethanol production from different media by local microorganism isolates and compare the ethanol fermentation profile of the selected strains to use of glucose or glycerol as sole carbon sources. The ethanol fermentations by six isolates were evaluated after a preliminary screening process. Strain named SS1 produced the highest ethanol yield of 1.0 mol: 1.0 mol glycerol and was identified as Escherichia coli SS1 Also, this isolated strain showed a higher affinity to glycerol than glucose for bioethanol production.
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