A review of conversion processes for bioethanol production with a focus on syngas fermentation

Biofuel Research Journal

Volumn 2, Issue 3, 2015, Pages 268-280

  Devarapalli, Mamatha ^a   Atiyeh, Hasan K ^a  

^a OKLAHOMA STATE UNIVERSITY   (United States)

Author keywords

Bioethanol; Conversion processes; Syngas fermentation

Indexed keywords

BIOMASS; ETHANOL; FEEDSTOCKS; FERMENTATION; MUNICIPAL SOLID WASTE; SACCHARIFICATION; SUGAR CANE; SYNTHESIS GAS;

ALGAL BIOMASS; BIO-ETHANOL PRODUCTION; BIO-ETHANOLS; BIOLOGICAL CONVERSION; BIOMASS FEEDSTOCK; CONVERSION PROCESS; LIGNOCELLULOSIC BIOMASS; SEPARATE HYDROLYSIS AND FERMENTATION; SIMULTANEOUS SACCHARIFICATION AND FERMENTATION; SYNGAS FERMENTATIONS;

BIOETHANOL;

EID: 84960099716     PISSN: None     EISSN: 22928782     Source Type: Journal    
DOI: 10.18331/BRJ2015.2.3.5     Document Type: Review

References (175)

1. Abrini, J., Naveau, H., Nyns, E. J., 1994. Clostridium autoethanogenum, sp. Nov., an anaerobic bacterium that produces ethanol from carbon monoxide. Arch. Microbiol. 161(4), 345-351
2. Abubackar, H. N., Veiga, M. C., Kennes, C., 2015. Carbon monoxide fermentation to ethanol by Clostridium autoethanogenum in a bioreactor with no accumulation of acetic acid. Bioresour. Technol. 186, 122-127
3. T, Ph. D. Dissertation, Oklahoma State University, pp. 229
4. t. Biomass Bioenergy. 30(7), 665-672
5. Ahmed, A., Lewis, R. S., 2007. Fermentation of biomass-generated synthesis gas: Effects of nitric oxide. Biotechnol. Bioeng. 97(5), 1080-1086
6. Allen, T. D., Caldwell, M. E., Lawson, P. A., Huhnke, R. L., Tanner, R. S., 2010. Alkalibaculum bacchi gen. Nov., sp. Nov., a co-oxidizing, ethanol-producing acetogen isolated from livestock-impacted soil. Int. J. Syst. Evol. Microbiol. 60(10), 2483-2489
7. Alvira, P., Tomás-Pejó, E., Ballesteros, M., Negro, M. J., 2010. Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review. Bioresour. Technol. 101(13), 4851-4861
8. Babu, B., Atiyeh, H., Wilkins, M., Huhnke, R., 2010. Effect of the reducing agent dithiothreitol on ethanol and acetic acid production by Clostridium strain p11 using simulated biomass-based syngas. Biol. Eng. 3(1), 19-35
9. Bai, F., Anderson, W., Moo-Young, M., 2008. Ethanol fermentation technologies from sugar and starch feedstocks. Biotechnol. Adv. 26(1), 89-105
10. Barik, S., Prieto, S., Harrison, S., Clausen, E., Gaddy, J., 1988. Biological production of alcohols from coal through indirect liquefaction. Appl. Biochem. Biotechnol. 18(1), 363-378
11. Bothast, R., Schlicher, M., 2005. Biotechnological processes for conversion of corn into ethanol. Appl. Microbiol. Biotechnol. 67(1), 19-25
12. Bredwell, M. D., Worden, R. M., 1998. Mass-transfer properties of microbubbles. 1. Experimental studies. Biotechnol. Progr. 14(1), 31-38
13. Bredwell, M. D., Srivastava, P., Worden, R. M., 1999. Reactor design issues for synthesis-gas fermentations. Biotechnol. Progr. 15(5), 834-844
14. Brennan, L., Owende, P. 2010. Biofuels from microalgae-a review of technologies for production, processing, and extractions of biofuels and co-products. Renew. Sustainable Energy Rev. 14(2), 557-577
15. Cardona Alzate, C. A., Sánchez Toro, O. J., 2006. Energy consumption analysis of integrated flowsheets for production of fuel ethanol from lignocellulosic biomass. Energy. 31(13), 2447-2459
16. Carriquiry, M. A., Du, X., Timilsina, G. R., 2011. Second generation biofuels: Economics and policies. Energy Policy. 39(7), 4222-4234
17. Chisti, Y., 2007. Biodiesel from microalgae. Biotechnol. Adv. 25(3), 294-306
18. Coskata., 2011. Semi-commercial facility demonstrates two years of successful operation, Coskata, Inc. 's. Madison, PA. Available at http://www. coskata. com/company/media. asp?story=504B571C-0916-474E-BFFA-ACB326EFDB68 (accessed on 10 August 2015)
19. Cotter, J. L., Chinn, M. S., Grunden, A. M., 2009. Ethanol and acetate production by Clostridium ljungdahlii and Clostridium autoethanogenum using resting cells. Bioproc. Biosyst. Eng. 32(3), 369-380
20. Cowger, J. P., Klasson, K. T., Ackerson, M. D., Clausen, E., Caddy, J. L., 1992. Mass-transfer and kinetic aspects in continuous bioreactors using Rhodospirillum rubrum. Appl. Biochem. Biotechnol. 34 (1), 613-624
21. Cruz, V., Hernandez, S., Martin, M., Grossmann, I. E., 2014. Integrated synthesis of biodiesel, bioethanol, isobutene, and glycerol ethers from algae. Ind. Eng. Chem. Res. 53(37), 14397-14407
22. Daniel, S. L., Hsu, T., Dean, S., Drake, H., 1990. Characterization of the h2-and co-dependent chemolithotrophic potentials of the acetogens Clostridium thermoaceticum and acetogenium kivui. J. Bacteriol. 172(8), 4464-4471
23. Datar, R. P., Shenkman, R. M., Cateni, B. G., Huhnke, R. L., Lewis, R. S., 2004. Fermentation of biomass-generated producer gas to ethanol. Biotechnol. Bioeng. 86(5), 587-594
24. Demirbas, A., Fatih Demirbas, M., 2011. Importance of algae oil as a source of biodiesel. Energy Convers. Manage. 52(1), 163-170
25. Devi, M. P., Mohan, S. V., Mohanakrishna, G., Sarma, P., 2010. Regulatory influence of co2 supplementation on fermentative hydrogen production process. Int. J. Hydrogen Energy. 35(19), 10701-10709
26. Dien, B. S., Cotta, M. A., Jeffries, T. W. 2003. Bacteria engineered for fuel ethanol production: Current status. Appl. Microbiol. Biotechnol. 63(3), 258-266
27. Drake, H. L., Daniel, S. L. 2004. Physiology of the thermophilic acetogen Moorella thermoacetica. Res. Microbiol. 155(10), 869-883
28. Drake, H. L., Gößner, A. S., Daniel, S. L. 2008. Old acetogens, new light. Ann. N. Y. Acad. Sci. 1125(1), 100-128
29. Dutta, A., Talmadge, M., Hensley, J., Worley, M., Dudgeon, D., Barton, D., Groenendijk, P., Ferrari, D., Stears, B., Searcy. E. M., Wright. C. T., Hess. J. R., 2011. Process design and economics for conversion of lignocellulosic biomass to ethanol: thermochemical pathway by indirect gasification and mixed alcohol synthesis. NREL/TP-5100-51400
30. Golden, CO: National Renewable Energy Laboratory, 2011. Available at http://www. nrel. gov/docs/fy11osti/51400. pdf. (accessed on 10 August 2015)
31. EIA., 2015a. Annual energy outlook, Energy Information Administration. Washington, D. C. Available at http://www. eia. gov/forecasts/aeo/MT_ liquidfuels. cfm (accessed on 10 August 2015)
32. EIA., 2015b. Net petroleum imports data-2014, U. S Energy Information Administration. Washington, D. C. Available at http://www. eia. gov/tools/faqs/faq. cfm?id=32&t=6 (accessed on 10 August 2015)
33. Fasahati, P., Woo, H. C., Liu, J. J., 2015. Industrial-scale bioethanol production from brown algae: Effects of pretreatment processes on plant economics. Appl. Energy. 139, 175-187
34. Fischer, C. R., Klein-Marcuschamer, D., Stephanopoulos, G., 2008. Selection and optimization of microbial hosts for biofuels production. Metab. Eng. 10(6), 295-304
35. Fontaine, F., Peterson, W., McCoy, E., Johnson, M. J., Ritter, G. J., 1942. A new type of glucose fermentation by Clostridium thermoaceticum. J. Bacteriol. 43(6), 701-715
36. Foust, T., Aden, A., Dutta, A., Phillips, S., 2009. An economic and environmental comparison of a biochemical and a thermochemical lignocellulosic ethanol conversion processes. Cellulose. 16(4), 547-565
37. Fraisse, L., Simon, H., 1988. Observations on the reduction of non-activated carboxylates by Clostridium formicoaceticum with carbon monoxide or formate and the influence of various viologens. Arch. Microbiol. 150(4), 381-386
38. Frankman, A. W., 2009. Redox, pressure and mass transfer effects on syngas fermentation. in: Department of Chemical Engineering, MS Thesis, Brigham Young University, pp. 106
39. Gaddy, J. L., Clausen, E. C., 1992. Clostridiumm ljungdahlii, an anaerobic ethanol and acetate producing microorganism, US, 5173429
40. Gao, J., Atiyeh, H. K., Phillips, J. R., Wilkins, M. R., Huhnke, R. L., 2013. Development of low cost medium for ethanol production from syngas by Clostridium ragsdalei. Bioresour. Technol. 147, 508-515
41. German, L., Schoneveld, G. C., Pacheco, P., 2011. The social and environmental impacts of biofuel feedstock cultivation: Evidence from multi-site research in the forest frontier. Ecol. Soc. 16(3), 24
42. Girbal, L., Croux, C., Vasconcelos, I., Soucaille, P., 1995. Regulation of metabolic shifts in Clostridium acetobutylicum atcc 824. FEMS Microbiol. Rev. 17(3), 287-297
43. Gottschal, J., Morris, J., 1981. The induction of acetone and butanol production in cultures of Clostridium acetobutylicum by elevated concentrations of acetate and butyrate. FEMS Microbiol. Lett. 12(4), 385-389
44. Gottwald, M., Gottschalk, G., 1985. The internal ph of Clostridium acetobutylicum and its effect on the shift from acid to solvent formation. Arch. Microbiol. 143(1), 42-46
45. Grethlein, A. J., Worden, R. M., Jain, M. K., Datta, R., 1991. Evidence for production of n-butanol from carbon monoxide by Butyribacterium methylotrophicum. J. Ferment. Bioeng. 72(1), 58-60
46. Gutierrez, N. A., 1989. Role of motility and chemotaxis in solvent production by Clostridium acetobutylicum in: Biotechnology, Ph. D. Dissertation, Massey University, pp. 482
47. Hahn-Hägerdal, B., Galbe, M., Gorwa-Grauslund, M. F., Lidén, G., Zacchi, G., 2006. Bio-ethanol-the fuel of tomorrow from the residues of today. Trends Biotechnol. 24(12), 549-556
48. Hahn-Hägerdal, B., Karhumaa, K., Fonseca, C., Spencer-Martins, I., Gorwa-Grauslund, M., 2007. Towards industrial pentose-fermenting yeast strains. Appl. Microbiol. Biotechnol. 74(5), 937-953
49. Hamelinck, C. N., Hooijdonk, G. v., Faaij, A. P., 2005. Ethanol from lignocellulosic biomass: Techno-economic performance in short-, middle-and long-term. Biomass Bioenergy. 28(4), 384-410
50. Hartmanis, M. N., Klason, T., Gatenbeck, S., 1984. Uptake and activation of acetate and butyrate in Clostridium acetobutylicum. Appl. Microbiol. Biotechnol. 20(1), 66-71
51. Harun, R., Danquah, M. K., Forde, G. M., 2010. Microalgal biomass as a fermentation feedstock for bioethanol production. J. Chem. Technol. Biotechnol. 85(2), 199-203
52. Harun, R., Yip, J. W., Thiruvenkadam, S., Ghani, W. A., Cherrington, T., Danquah, M. K., 2014. Algal biomass conversion to bioethanol-a step-by-step assessment. Biotech. J. 9(1), 73-86
53. Henstra, A. M., Sipma, J., Rinzema, A., Stams, A. J. M., 2007. Microbiology of synthesis gas fermentation for biofuel production. Curr. Opin. Biotechnol. 18(3), 200-206
54. Hickey, R., Basu, R., Datta, R., Tsai, S. P., 2011. Method of conversion of syngas using microorganism on hydrophilic membrane, US, 7923227
55. Hu, P., 2011. Thermodynamic, sulfide, redox potential and ph effects on syngas fermentation. in: Chemical Engineering, Ph. D. Dissertation, Bringham Young University, pp. 206
56. Hu, P., Bowen, S. H., Lewis, R. S., 2011. A thermodynamic analysis of electron production during syngas fermentation. Bioresour. Technol. 102(17), 8071-8076
57. Huhnke, R., Lewis, R. S., Tanner, R. S., 2010. Isolation and characterization of novel clostridial species, US, 7704723
58. t. in: Chemical Engineering, Master of Science, Oklahoma State University, pp. 160
59. Hurst, K. M., Lewis, R. S., 2010. Carbon monoxide partial pressure effects on the metabolic process of syngas fermentation. Biochem. Eng. J. 48(2), 159-165
60. IFIS., 2009. Dictionary of food science and technology. 2 ed, (Ed. ) I. F. I. Service, Wiley-Blackwell. Singapore, pp. 488
61. INEOS., 2013. Ineos bio produces cellulosic ethanol at commercial scale, INEOS Bio. Vero Beach, FL. Available at http://www. ineos. com/en/businesses/INEOS-Bio/News/INEOS-Bio-Produces-Cellulosic-Ethanol/?business=INEOS+Bio (accessed on 10 August 2015)
62. Ito, K., Hori, K., 1989. Seaweed: Chemical composition and potential food uses. Food Rev. Int. 5(1), 101-144
63. John, R. P., Anisha, G. S., Nampoothiri, K. M., Pandey, A., 2011. Micro and macroalgal biomass: A renewable source for bioethanol. Bioresour. Technol. 102(1), 186-193
64. Jones, S. T., 2007. Gas-liquid mass transfer in an external airlift loop reactor for syngas fermentation. in: Chemical Engineering, Ph. D. Dissertation, Iowa State University, pp. 378
65. Jung, K. A., Lim, S.-R., Kim, Y., Park, J. M., 2013. Potentials of macroalgae as feedstocks for biorefinery. Bioresour. Technol. 135, 182-190
66. Kim, Y.-K., Park, S. E., Lee, H., Yun, J. Y., 2014. Enhancement of bioethanol production in syngas fermentation with Clostridium ljungdahlii using nanoparticles. Bioresour. Technol. 159, 446-450
67. Kimmel, D. E., Klasson, K. T., Clausen, E. C., Gaddy, J. L., 1991. Performance of trickle-bed bioreactors for converting synthesis gas to methane. Appl. Biochem. Biotechnol. 28 (1), 457-469
68. Kitani, O., Hall, C. W., 1989. Biomass handbook. Gordon and Breach Science Publishers, New York, pp. 963
69. Klasson, K., Elmore, B., Vega, J., Ackerson, M., Clausen, E., Gaddy, J., 1990a. Biological production of liquid and gaseous fuels from synthesis gas. Appl. Biochem. Biotechnol. 24(1), 857-873
70. Klasson, K., Cowger, J., Ko, C., Vega, J., Clausen, E., Gaddy, J., 1990b. Methane production from synthesis gas using a mixed culture of R. Rubrum, M. Barkeri, and M. Formicicum. Appl. Biochem. Biotechnol. 24(1), 317-328
71. Klasson, K., Ackerson, M., Clausen, E., Gaddy, J., 1991. Bioreactor design for synthesis gas fermentations. Fuel. 70(5), 605-614
72. Klasson, K., Gupta, A., Clausen, E., Gaddy, J., 1993a. Evaluation of mass-transfer and kinetic parameters for Rhodospirillum rubrum in a continuous stirred tank reactor. Appl. Biochem. Biotechnol. 39(1), 549-557
73. Klasson, K. T., Ackerson, M. D., Clausen, E. C., Gaddy, J. L., 1992. Bioconversion of synthesis gas into liquid or gaseous fuels. Enzyme Microb. Technol. 14(8), 602-608
74. Klasson, T. K., Ackerson, M. D., Clausen, E. C., Gaddy, J. L., 1993b. Biological conversion of coal and coal-derived synthesis gas. Fuel. 72(12), 1673-1678
75. Kundiyana, D. K., Huhnke, R. L., Maddipati, P., Atiyeh, H. K., Wilkins, M. R., 2010. Feasibility of incorporating cotton seed extract in Clostridium strain p11 fermentation medium during synthesis gas fermentation. Bioresour. Technol. 101(24), 9673-9680
76. Kundiyana, D. K., Huhnke, R. L., Wilkins, M. R., 2011a. Effect of nutrient limitation and two-stage continuous fermentor design on productivities during 'Clostridium ragsdalei' syngas fermentation. Bioresour. Technol. 102(10), 6058-6064
77. Kundiyana, D. K., Wilkins, M. R., Maddipati, P., Huhnke, R. L., 2011b. Effect of temperature, ph and buffer presence on ethanol production from synthesis gas by 'Clostridium ragsdalei'. Bioresour. Technol. 102(10), 5794-5799
78. Lane, J., 2014. On the mend: Why ineos bio isn't producing ethanol in florida, Biofuels Digest. Available at http://www. biofuelsdigest. com/bdigest/2014/09/05/on-the-mend-why-ineos-bio-isnt-reporting-much-ethanol-production/(accessed on 10 August 2015)
79. Lane, J., 2015. Abengoa bioenergy: Biofuels digest's 2015 5-minute guide, Biofuels Digest. Available at http://www. biofuelsdigest. com/bdigest/2015/01/19/abengoa-bioenergy-biofuels-digests-2015-5-minute-guide/(accessed on 10 August 2015)
80. LanzaTech., 2015. Chemicals. Available at http://www. lanzatech. com/innovation/markets/chemicals/(accessed on 10 August 2015)
81. Lewis, R. S., Tanner, R. S., Huhnke, R. L., 2007. Indirect or direct fermentation of biomass to fuel alcohol, US, 11441392
82. Lewis, R. S., Frankman, A., Tanner, R. S., Ahmed, A., Huhnke, R. L., 2008. Ethanol via biomass-generated syngas. Int. Sugar J. 110(1311), 150-155
83. Liew, F. M., Kopke, M., Simpson, S. D., 2013. Gas fermentation for commercial biofuels production, (Eds. ) Fang, P. Z., IntechOpen. Rijeka, Croatia, pp. 125-173
84. Lin, Y., Tanaka, S., 2006. Ethanol fermentation from biomass resources: Current state and prospects. Appl. Microbiol. Biotechnol. 69(6), 627-642
85. Liou, J. S. C., Balkwill, D. L., Drake, G. R., Tanner, R. S., 2005. Clostridium carboxidivorans sp. Nov., a solvent-producing clostridium isolated from an agricultural settling lagoon, and reclassification of the acetogen Clostridium scatologenes strain sl1 as Clostridium drakei sp. Nov. Int. J. Syst. Evol. Microbiol. 55(5), 2085-2091
86. Liu, K., Atiyeh, H. K., Tanner, R. S., Wilkins, M. R., Huhnke, R. L., 2012. Fermentative production of ethanol from syngas using novel moderately alkaliphilic strains of Alkalibaculum bacchi. Bioresour. Technol. 104, 336-341
87. Liu, K., Atiyeh, H. K., Stevenson, B. S., Tanner, R. S., Wilkins, M. R., Huhnke, R. L., 2014a. Continuous syngas fermentation for the production of ethanol, n-propanol and n-butanol. Bioresour. Technol. 151, 69-77
88. Liu, K., Atiyeh, H. K., Stevenson, B. S., Tanner, R. S., Wilkins, M. R., Huhnke, R. L., 2014b. Mixed culture syngas fermentation and conversion of carboxylic acids into alcohols. Bioresour. Technol. 152, 337-346
89. Liu, K., Atiyeh, H. K., Pardo-Planas, O., Ezeji, T. C., Ujor, V., Overton, J. C., Berning, K., Wilkins, M. R., Tanner, R. S., 2015a. Butanol production from hydrothermolysis-pretreated switchgrass: Quantification of inhibitors and detoxification of hydrolyzate. Bioresour. Ttechnol. 189, 292-301
90. Liu, K., Atiyeh, H. K., Pardo-Planas, O., Ramachandriya, K. D., Wilkins, M. R., Ezeji, T. C., Ujor, V., Tanner, R. S., 2015b. Process development for biological production of butanol from eastern redcedar. Bioresour. Technol. 176, 88-97
91. Ljungdhal, L., 1986. The autotrophic pathway of acetate synthesis in acetogenic bacteria. Annu. Rev. Microbiol. 40(1), 415-450
92. Lynd, L. R., Weimer, P. J., Van Zyl, W. H., Pretorius, I. S., 2002. Microbial cellulose utilization: Fundamentals and biotechnology. Microbiol. Mol Biol. R. 66(3), 506-577
93. Lynd, L. R., Zyl, W. H. v., McBride, J. E., Laser, M., 2005. Consolidated bioprocessing of cellulosic biomass: An update. Curr. Opin. Biotechnol. 16(5), 577-583
94. Lynd, L. R., Laser, M. S., Bransby, D., Dale, B. E., Davison, B., Hamilton, R., Himmel, M., Keller, M., McMillan, J. D., Sheehan, J., 2008. How biotech can transform biofuels. Nat. Biotechnol. 26(2), 169-172
95. Maddipati, P., Atiyeh, H. K., Bellmer, D. D., Huhnke, R. L., 2011. Ethanol production from syngas by Clostridium strain p11 using corn steep liquor as a nutrient replacement to yeast extract. Bioresour. Technol. 102(11), 6494-6501
96. Madigan, M., Martinko, J., Parker, J. 2003. Brock biology of microorganisms. Prentice Hall, New Jersey, pp. 1019
97. Margeot, A., Hahn-Hagerdal, B., Edlund, M., Slade, R., Monot, F., 2009. New improvements for lignocellulosic ethanol. Curr. Opin. Biotechnol. 20(3), 372-380
98. Mata, T. M., Martins, A. A., Caetano, N. S., 2010. Microalgae for biodiesel production and other applications: A review. Renew. Sustainable Energy Rev. 14(1), 217-232
99. Menetrez, M. Y., 2014. Meeting the us renewable fuel standard: A comparison of biofuel pathways. Biofuel Res. J. 1(4), 110-122
100. Mohammadi, M., Najafpour, G. D., Younesi, H., Lahijani, P., Uzir, M. H., Mohamed, A. R., 2011. Bioconversion of synthesis gas to second generation biofuels: A review. Renew. Sustainable Energy Rev. 15(9), 4255-4273
101. Mohammadi, M., Younesi, H., Najafpour, G., Mohamed, A. R., 2012. Sustainable ethanol fermentation from synthesis gas by Clostridium ljungdahlii in a continuous stirred tank bioreactor. J. Chem. Technol. Biotechnol. 87(6), 837-843
102. Mood, S. H., Golfeshan, A. H., Tabatabaei, M., Jouzani, G. S., Najafi, G. H., Gholami, M., Ardjmand, M., 2013. Lignocellulosic biomass to bioethanol, a comprehensive review with a focus on pretreatment. Renew. Sustainable Energy Rev. 27, 77-93
103. Munasinghe, P. C., Khanal, S. K., 2010a. Biomass-derived syngas fermentation into biofuels: Opportunities and challenges. Bioresour. Technol. 101(13), 5013-5022
104. Munasinghe, P. C., Khanal, S. K., 2010b. Syngas fermentation to biofuel: Evaluation of carbon monoxide mass transfer coefficient (kLa) in different reactor configurations. Biotechnol. Progr. 26(6), 1616-1621
105. Munasinghe, P. C., Khanal, S. K. 2014. Evaluation of hydrogen and carbon monoxide mass transfer and a correlation between the myoglobin-protein bioassay and gas chromatography method for carbon monoxide determination. RSC Adv. 4(71), 37575-37581
106. Mussatto, S. I., Dragone, G., Guimarães, P. M., Silva, J. P. A., Carneiro, L. M., Roberto, I. C., Vicente, A., Domingues, L., Teixeira, J. A., 2010. Technological trends, global market, and challenges of bio-ethanol production. Biotechnol. Adv. 28(6), 817-830
107. Naik, S., Goud, V. V., Rout, P. K., Dalai, A. K., 2010. Production of first and second generation biofuels: A comprehensive review. Renew. Sustainable Energy Rev. 14(2), 578-597
108. Najafpour, G., Younesi, H., 2006. Ethanol and acetate synthesis from waste gas using batch culture of Clostridium ljungdahlii. Enzyme Microb. Technol. 38(1-2), 223-228
109. Nayak, B. K., Roy, S., Das, D., 2014. Biohydrogen production from algal biomass (anabaena sp. Pcc 7120) cultivated in airlift photobioreactor. Int. J. Hydrogen Energ. 39(14), 7553-7560
110. Nigam, P., Singh, D., 1995. Enzyme and microbial systems involved in starch processing. Enzyme Microb. Technol. 17(9), 770-778
111. öhgren, K., Bengtsson, O., Gorwa-Grauslund, M. F., Galbe, M., Hahn-Hägerdal, B., Zacchi, G., 2006. Simultaneous saccharification and co-fermentation of glucose and xylose in steam-pretreated corn stover at high fiber content with Saccharomyces cerevisiae tmb3400. J. Biotechnol. 126(4), 488-498
112. Orgill, J. J., Atiyeh, H. K., Devarapalli, M., Phillips, J. R., Lewis, R. S., Huhnke, R. L., 2013. A comparison of mass transfer coefficients between trickle-bed, hollow fiber membrane and stirred tank reactors. Bioresour. Technol. 133, 340-346
113. Pandey, A., 2010. Handbook of plant-based biofuels. CRC Press, Boca Raton, FL, pp. 312
114. Panneerselvam, A., Wilkins, M., DeLorme, M., Atiyeh, H., Huhnke, R., 2009. Effects of various reducing agents on syngas fermentation by Clostridium ragsdalei. Biol. Eng. 2(3), 135-144
115. Park, H. R., Jung, K. A., Lim, S.-R., Park, J. M., 2014. Quantitative sustainability assessment of seaweed biomass as bioethanol feedstock. Bioenergy Res. 7(3), 974-985
116. Perales, A. V., Valle, C. R., Ollero, P., Gómez-Barea, A., 2011. Technoeconomic assessment of ethanol production via thermochemical conversion of biomass by entrained flow gasification. Energy. 36(7), 4097-4108
117. Percival Zhang, Y. H., Himmel, M. E., Mielenz, J. R., 2006. Outlook for cellulase improvement: Screening and selection strategies. Biotechnol. Adv. 24(5), 452-481
118. Perez, J. M., Richter, H., Loftus, S. E., Angenent, L. T., 2013. Biocatalytic reduction of short-chain carboxylic acids into their corresponding alcohols with syngas fermentation. Biotechnol. Bioeng. 110(4), 1066-1077
119. Pessani, N. K., Atiyeh, H. K., Wilkins, M. R., Bellmer, D. D., Banat, I. M., 2011. Simultaneous saccharification and fermentation of kanlow switchgrass by thermotolerant Kluyveromyces marxianus imb3: The effect of enzyme loading, temperature and higher solid loadings. Bioresour. Technol. 102(22), 10618-10624
120. Phillips, J., Atiyeh, H., Huhnke, R., 2014. Method for design of production medium for fermentation of synthesis gas to ethanol by acetogenic bacteria. Biolog. Eng. Trans. 7(3), 113-128
121. Phillips, J. R., Klasson, T. K., Clausen, E. C., Gaddy, J. L., 1993. Biological production of ethanol from coal synthesis gas. Appl. Biochem. Biotechnol. 39-40(1), 559-571
122. Phillips, J. R., Clausen, E. C., Gaddy, J. L., 1994. Synthesis gas as substrate for the biological production of fuels and chemicals. Appl. Biochem. Biotechnol. 45(1), 145-157
123. Phillips, J. R., Atiyeh, H. K., Tanner, R. S., Torres, J. R., Saxena, J., Wilkins, M. R., Huhnke, R. L., 2015. Butanol and hexanol production in Clostridium carboxidivorans syngas fermentation: Medium development and culture techniques. Bioresour. Technol. 190, 114-121
124. POET-DSM., 2014. First commercial-scale cellulosic ethanol plant in the U. S. Opens for business, POET-DSM Advanced Biofuels, LLC. Emmetsburg, Iowa. Sept. 3rd, 2014. Available at http://www. dsm. com/corporate/media/informationcenter-news/2014/09/29-14-first-commercial-scale-cellulosic-ethanol-plant-in-the-united-states-open-for-business. html (accessed on 10 August 2015)
125. Posten, C., Schaub, G., 2009. Microalgae and terrestrial biomass as source for fuels-a process view. J. Biotechnol. 142(1), 64-69
126. Ragsdale, S. W., 1997. The eastern and western branches of the wood/ljungdahl pathway: How the east and west were won. Biofactors. 6(1), 3-11
127. Rajagopalan, S., P. Datar, R., Lewis, R. S., 2002. Formation of ethanol from carbon monoxide via a new microbial catalyst. Biomass Bioenergy. 23(6), 487-493
128. Ramachandriya, K. D., Wilkins, M. R., Delorme, M. J., Zhu, X., Kundiyana, D. K., Atiyeh, H. K., Huhnke, R. L., 2011. Reduction of acetone to isopropanol using producer gas fermenting microbes. Biotechnol. Bioeng. 108(10), 2330-2338
129. Rao, G., Mutharasan, R., 1986. Alcohol production by Clostridium acetobutylicum induced by methyl viologen. Biotechnol. Lett. 8(12), 893-896
130. Rao, G., Ward, P., Mutharasan, R., 1987. Manipulation of end-product distribution in strict anaerobes. Ann. N. Y. Acad. Sci. 506(1), 76-83
131. Rathmann, R., Szklo, A., Schaeffer, R., 2010. Land use competition for production of food and liquid biofuels: An analysis of the arguments in the current debate. Renew. Energy. 35(1), 14-22
132. Rausch, K., Belyea, R., 2006. The future of coproducts from corn processing. Appl. Biochem. Biotechnol. 128(1), 47-86
133. Richter, H., Martin, M. E., Angenent, L. T., 2013. A two-stage continuous fermentation system for conversion of syngas into ethanol. Energies. 6(8), 3987-4000
134. Riggs, S. S., Heindel, T. J., 2006. Measuring carbon monoxide gas-liquid mass transfer in a stirred tank reactor for syngas fermentation. Biotechnol. Progr. 22(3), 903-906
135. Rodríguez, L. F., Li, C., Khanna, M., Spaulding, A. D., Lin, T., Eckhoff, S. R., 2010. An engineering and economic evaluation of quick germ-quick fiber process for dry-grind ethanol facilities: Analysis. Bioresour. Technol. 101(14), 5282-5289
136. Sakai, S., Nakashimada, Y., Yoshimoto, H., Watanabe, S., Okada, H., Nishio, N., 2004. Ethanol production from H2 and CO2 by a newly isolated thermophilic bacterium, Moorella sp. Huc22-1. Biotechnol. Lett. 26(20), 1607-1612
137. Savage, M. D., Wu, Z., Daniel, S. L., Lundie, J., Leon, L., Drake, H. L., 1987. Carbon monoxide-dependent chemolithotrophic growth of Clostridium thermoautotrophicum. Appl. Environ. Microbiol. 53, 1902-1906
138. Saxena, J., 2008. Development of an optimized and cost-effective medium for ethanol production by Clostridium strain P11, in: Department of Botany and Microbiology, Ph. D. Dissertation, University of Oklahoma. Ann Arbor, pp. 131
139. Saxena, J., Tanner, R. S., 2011. Effect of trace metals on ethanol production from synthesis gas by the ethanologenic acetogen, Clostridium ragsdalei. J. Ind. Microbiol. Biotechnol. 38(4), 513-521
140. Searchinger, T., Heimlich, R., Houghton, R. A., Dong, F., Elobeid, A., Fabiosa, J., Tokgoz, S., Hayes, D., Yu, T. H., 2008. Use of US croplands for biofuels increases greenhouse gases through emissions from land-use change. Science. 319(5867), 1238-1240
141. Shen, Y., Brown, R., Wen, Z., 2014a. Syngas fermentation of Clostridium carboxidivoran P7 in a hollow fiber membrane biofilm reactor: Evaluating the mass transfer coefficient and ethanol production performance. Biochem. Eng. J. 85, 21-29
142. Shen, Y., Brown, R., Wen, Z., 2014b. Enhancing mass transfer and ethanol production in syngas fermentation of Clostridium carboxidivorans P7 through a monolithic biofilm reactor. Appl. Energy. 136, 68-76
143. Sherwood, T. K., Pigford, R. L., Wilke, C. R., 1975. Mass transfer. McGraw-Hill Inc., New York, pp. 512
144. Sim, J. H., Kamaruddin, A. H., 2008. Optimization of acetic acid production from synthesis gas by chemolithotrophic bacterium-Clostridium aceticum using statistical approach. Bioresour. Technol. 99(8), 2724-2735
145. Sims, R., Taylor, M., Saddler, J., Mabee, W., 2008. From 1st-to 2nd-generation biofuel technologies: An overview of current industry and RD&D activities, International Energy Agency. Paris, France, pp. 120. Available at http://environmentportal. in/files/2nd_Biofuel_Gen. pdf (accessed on 10 August 2015)
146. Skidmore, B. E., 2010. Syngas fermentation: Quantification of assay technoques, reaction kinetics and pressure dependencies of the Clostridium p11 hydrogenase, in: Department of Chemical Engineering, M. S. Thesis, Bringham Young University, pp. 136
147. Slepova, T. V., Sokolova, T. G., Lysenko, A. M., Tourova, T. P., Kolganova, T. V., Kamzolkina, O. V., Karpov, G. A., Bonch-Osmolovskaya, E. A., 2006. Carboxydocella sporoproducens sp. Nov., a novel anaerobic CO-utilizing/H2-producing thermophilic bacterium from a kamchatka hot spring. Int. J. Syst. Evol. Microbiol. 56(4), 797-800
148. Stöcker, M., 2008. Biofuels and biomass-to-liquid fuels in the biorefinery: Catalytic conversion of lignocellulosic biomass using porous materials. Angew. Chem. Int. Ed. 47(48), 9200-9211
149. Sun, Y., Cheng, J., 2002. Hydrolysis of lignocellulosic materials for ethanol production: A review. Bioresour. Technol. 83(1), 1-11
150. Szczodrak, J., Fiedurek, J., 1996. Technology for conversion of lignocellulosic biomass to ethanol. Biomass Bioenergy. 10(5), 367-375
151. Tanner, R. S., Miller, L. M., Yang, D., 1993. Clostridium ljungdahlii sp. Nov., an acetogenic species in clostridial rrna homology group i. Int. J Syst. Bacteriol. 43(2), 232-236
152. Tanner, R. S., 2008. Production of ethanol from synthesis gas, in: Wall, J., Harwood, C., Demain A. (Eds. ), Bioenergy. ASM Press, pp. 147-151
153. Terrill, J., Wilkins, M., DeLorme, M., Atiyeh, H., Lewis, R., 2012. Effect of energetic gas composition on hydrogenase activity and ethanol production in syngas fermentation by Clostridium ragsdalei. Biol. Eng. Trans. 8, 87-96
154. Tilman, D., Hill, J., Lehman, C., 2006. Carbon-negative biofuels from low-input high-diversity grassland biomass. Science. 314(5805), 1598-1600
155. Twidell, J., Weir, T., 2003. Renewable energy resources. Taylor and Francis Group, New York, pp. 601
156. Ukpong, M. N., Atiyeh, H. K., De Lorme, M. J., Liu, K., Zhu, X., Tanner, R. S., Wilkins, M. R., Stevenson, B. S., 2012. Physiological response of Clostridium carboxidivorans during conversion of synthesis gas to solvents in a gas-fed bioreactor. Biotechnol. Bioeng. 109(11), 2720-2728
157. Ungerman, A. J., Heindel, T. J., 2007. Carbon monoxide mass transfer for syngas fermentation in a stirred tank reactor with dual impeller configurations. Biotechnol. Progr. 23(3), 613-620
158. USGC, 2012. Ddgs user handbook, US Grains Council. Washington, DC, pp. 406. Available at http://www. ethanolrfa. org/page/-/rfa-association-site/studies/2012_DDGS_Handbook. pdf?nocdn=1 (accessed on 10 August 2015)
159. Vega, J. L., Prieto, S., Elmore, B. B., Clausen, E. C., Gaddy, J. L., 1989. The biological production of ethanol from synthesis gas. Appl. Biochem. Biotechnol. 20(1), 781-797
160. Vega, J. L., Clausen, E. C., Gaddy, J. L., 1990. Design of bioreactors for coal synthesis gas fermentations. Resour. Conserv. Recycl. 3(2), 149-160
161. White, H., Lebertz, H., Thanos, I., Simon, H., 1987. Clostridium thermoaceticum forms methanol from carbon monoxide in the presence of viologen dyes. FEMS Microbiol. Lett. 43(2), 173-176
162. Wilkins, M. R., Atiyeh, H. K., 2011. Microbial production of ethanol from carbon monoxide. Curr. Opin. Biotechnol. 22(3), 326-330
163. Wilkins, M. R., Atiyeh, H., 2012. Fermentation, in: Dunford, N. T. (Eds. ), Food and industrial bioproducts and bioprocessing. John Wiley & Sons, Inc. Ames, Iowa, pp. 185
164. Wood, H. G., Ragsdale, S. W., Pezacka, E., 1986. The acetyl-coa pathway of autotrophic growth. FEMS Microbiol. Lett. 39(4), 345-362
165. Woolcock, P. J., Brown, R. C., 2013. A review of cleaning technologies for biomass-derived syngas. Biomass Bioenergy. 52, 54-84
166. Worden, R. M., Grethlein, A. J., Jain, M. K., Datta, R., 1991. Production of butanol and ethanol from synthesis gas via fermentation. Fuel. 70(5), 615-619
167. Wright, J., Wyman, C., Grohmann, K., 1988. Simultaneous saccharification and fermentation of lignocellulose. Appl. Biochem. Biotechnol. 18(1), 75-90
168. Xu, D., Tree, D. R., Lewis, R. S., 2011. The effects of syngas impurities on syngas fermentation to liquid fuels. Biomass Bioenergy. 35(7), 2690-2696
169. Xu, D., Lewis, R. S., 2012. Syngas fermentation to biofuels: Effects of ammonia impurity in raw syngas on hydrogenase activity. Biomass Bioenergy. 45, 303-310
170. Yasin, M., Park, S., Jeong, Y., Lee, E. Y., Lee, J., Chang, I. S., 2014. Effect of internal pressure and gas/liquid interface area on the CO mass transfer coefficient using hollow fibre membranes as a high mass transfer gas diffusing system for microbial syngas fermentation. Bioresour. Technol. 169, 637-643
171. Younesi, H., Najafpour, G., Mohamed, A. R. 2005. Ethanol and acetate production from synthesis gas via fermentation processes using anaerobic bacterium, Clostridium ljungdahlii. Biochem. Eng. J. 27(2), 110-119
172. Zabriskie, D. W., Mill, T. O., 1988. Traders guide to fermentation media formulation. Traders Protein, pp. 60
173. Zahn, J. A., Saxena, J., 2012. Ethanologenic clostridium species, Clostridium coskatii. US, 8143037
174. Zeikus, J., 1980. Chemical and fuel production by anaerobic bacteria. Annu. Rev. Microbiol. 34(1), 423-464
175. Zhang, M., Eddy, C., Deanda, K., Finkelstein, M., Picataggio, S., 1995. Metabolic engineering of a pentose metabolism pathway in ethanologenic Zymomonas mobilis. Science. 267(5195), 240-243