Feasibility of incorporating cotton seed extract in Clostridium strain P11 fermentation medium during synthesis gas fermentation

Kundiyana, Dimple K.; Huhnke, Raymond L.; Maddipati, Prasanth; Atiyeh, Hasan K.; Wilkins, Mark R.

doi:10.1016/j.biortech.2010.07.054

Cited by 64 publications

(41 citation statements)

References 21 publications

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“…The cost of fermentation media is also important due to the large volumes used at a commercial scale. Researchers have successfully investigated the use of low cost media components such as cotton seed extract or corn steep liquor to replace standard, more costly, vitamin and mineral media components [158,189].…”

Section: Fermentation and Bioreactor Optimisationmentioning

confidence: 99%

Commercial Biomass Syngas Fermentation

2012

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Abstract:The use of gas fermentation for the production of low carbon biofuels such as ethanol or butanol from lignocellulosic biomass is an area currently undergoing intensive research and development, with the first commercial units expected to commence operation in the near future. In this process, biomass is first converted into carbon monoxide (CO) and hydrogen (H 2 )-rich synthesis gas (syngas) via gasification, and subsequently fermented to hydrocarbons by acetogenic bacteria. Several studies have been performed over the last few years to optimise both biomass gasification and syngas fermentation with significant progress being reported in both areas. While challenges associated with the scale-up and operation of this novel process remain, this strategy offers numerous advantages compared with established fermentation and purely thermochemical approaches to biofuel production in terms of feedstock flexibility and production cost. In recent times, metabolic engineering and synthetic biology techniques have been applied to gas fermenting organisms, paving the way for gases to be used as the feedstock for the commercial production of increasingly energy dense fuels and more valuable chemicals.

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Section: Fermentation and Bioreactor Optimisationmentioning

confidence: 99%

Commercial Biomass Syngas Fermentation

2012

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“…Isolation of acetogens typically uses a medium enriched with yeast extract with pH stabilized using a Good's buffer, like 2-(N-morpholino)ethanesulfonic Acid (MES) [37]. Several studies have substituted other complex medium components for yeast extract; for example, corn steep liquor [38,39] or cotton seed extract [40]. A defined medium without complex nutrients was used with C. ljungdahlii to achieve 48 g/L of ethanol [41].…”

Section: Species and Habitatmentioning

confidence: 99%

Syngas Fermentation: A Microbial Conversion Process of Gaseous Substrates to Various Products

2017

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Biomass and other carbonaceous materials can be gasified to produce syngas with high concentrations of CO and H 2 . Feedstock materials include wood, dedicated energy crops, grain wastes, manufacturing or municipal wastes, natural gas, petroleum and chemical wastes, lignin, coal and tires. Syngas fermentation converts CO and H 2 to alcohols and organic acids and uses concepts applicable in fermentation of gas phase substrates. The growth of chemoautotrophic microbes produces a wide range of chemicals from the enzyme platform of native organisms. In this review paper, the Wood-Ljungdahl biochemical pathway used by chemoautotrophs is described including balanced reactions, reaction sites physically located within the cell and cell mechanisms for energy conservation that govern production. Important concepts discussed include gas solubility, mass transfer, thermodynamics of enzyme-catalyzed reactions, electrochemistry and cellular electron carriers and fermentation kinetics. Potential applications of these concepts include acid and alcohol production, hydrogen generation and conversion of methane to liquids or hydrogen.

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“…Standard YE medium was replaced with defined minimal medium, cotton seed extract (CSE) and corn steep liquor (CSL) to reduce medium cost and improve ethanol production (Gao et al, 2013;Kundiyana et al, 2010;Maddipati et al, 2011;Phillips et al, 2014). CSL medium, which is rich in vitamins, minerals and amino acids was shown to produce 40% more ethanol using C. ragsdalei (Maddipati et al, 2011).…”

Section: Medium Componentsmentioning

confidence: 99%

“…Redox potential is a fermentation parameter that defines the ability of the solution to undergo oxidation reduction reaction (IFIS, 2009). In syngas fermentation using C. ragsdalei, a decreasing trend of redox potential during cell growth and increasing trend of redox potential during ethanol production was reported (Kundiyana et al, 2010;Maddipati et al, 2011). Solventogenesis is an electron intensive process that requires high levels of NADH (Rao et al, 1987).…”

Section: Reducing Agentsmentioning

confidence: 99%

“…Continuous stirred tank reactors, bubble columns, packed columns, air-lift, trickle beds and hollow fiber reactors are some of the bioreactor configurations studied for alcohol production using syngas fermentation (Datar et al, 2004;Hickey et al, 2011;Kimmel et al, 1991;Kundiyana et al, 2010;Mohammadi et al, 2012;Shen et al, 2014a). Further, these reactors can be operated in different fermentation modes such as batch, fed-batch, continuous with and without cell recycle (Cotter et al, 2009;Grethlein et al, 1991;Lewis et al, 2007;Maddipati et al, 2011;Phillips et al, 1993).…”

Section: Bioreactor Designmentioning

confidence: 99%

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