Skip to main content
Log in

Effect of pulp pH on solid phase fermentation of fodder beets for fuel ethanol production

  • Published:
Biotechnology Letters Aims and scope Submit manuscript

Summary

The pH of fodder beet pulp was varied to see how this affected solid phase fermentation by yeast. The process is for fuel ethanol production. When pulp was adjusted to a pre-inoculation pH of 3.0–3.5, ethanol yields (78–85% of theoretical, averaging 8.9% v/v) and fermentation efficiencies (97–99%) were greatest, the fermentation time was the shortest (30–39 h) and no bacterial contamination occurred.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Anon. (1980) Official Methods of Analysis, 13th ed. Association of Official Analytical Chemists, Washington, D.C.

  • Bryan, W.L., Monroe, G.E., Nichols, R.L., and Gascho, G.J. (1981) Evaluation of sweet sorghum for fuel alcohol. Winter Meet. Am. Soc. Agric. Eng., paper 81-3571.

  • Gibbons, W. R., and Westby, C. A. (1983) Fuel ethanol and high protein feed from corn and corn-whey mixtures in a farm-scale plant. Biotechnol. Bioeng. 25, 2127–2148.

    Google Scholar 

  • Gibbons, W. R., and Westby, C. A. (1986a) Solid phase fermentation of fodder beets for ethanol production: Effect of grind size. J. Ferm. Technol. 64, 175–179.

    Google Scholar 

  • Gibbons, W. R., and Westby, C. A. (1986b) Effects of inoculum size on solid-phase fermentation of fodder beets for fuel ethanol production. App. Env. Microbiol. (in press).

  • Gibbons, W. R., Westby, C. A., and Dobbs, T.L. (1984) A continuous, farm-scale, solid-phase fermentation process for fuel ethanol and protein feed production from fodder beets. Biotechnol. Bioeng. 26, 1098–1107.

    Google Scholar 

  • Gibbons, W. R., Westby, C. A., and Dobbs T.L. (1986) Intermediate-scale, semi continuous solid-phase fermentation process for production of fuel ethanol from sweet sorghum. App. Env. Microbiol. 51, 115–122.

    Google Scholar 

  • Hills, F. J., Johnson, S. S., Geng, S., Abshahi, A., and Peterson, G. R. (1981) Comparison of high-energy crops for alcohol production. Calif. Agric. Nov–Dec, 14–16.

  • Hills, F. J., Johnson, S. S., Geng, S., Abshahi, A., and Peterson, G. R. (1983) Comparison of four crops for alcohol yield. Calif. Agric. March–April, 17–19.

  • Jones, R. P., Pamment, N., and Greenfield, P. F. (1981) Alcohol fermentation by yeasts — the effect of environmental and other variables. Process Biochem. 16, 42–49.

    Google Scholar 

  • Kirby, K. D., and Mardon, C. J. (1980a) Production of fuel ethanol by solid-phase fermentation. Biotechnol. Bioeng. 22, 2425–2427.

    Google Scholar 

  • Kirby, K. D., and Mardon, C. J. (1980b) Solid phase fermentation for intermediate scale ethanol production. Proc. IV Int. Symp. Alc. Fuels Tech. Vol I, 13–19. Guaruja-SP-Brazil.

  • Larsen, D. H., Doney, D. L., and Orien, H. A. (1980) Production of ethyl alcohol from sugar beets. Proc. Soc. Ind. Microbiol., 719–724.

  • Miller, G. L. (1959) Use of dinitrosalicylic acid reagent for determination of reducing sugar. Anal. Chem. 31, 426–428.

    Google Scholar 

  • Prescott, S. C., and Dunn, C. G. (1959) Industrial Microbiology. pp. 113, McGraw-Hill, New York.

    Google Scholar 

  • Stark, W. H. (1954) Alcoholic fermentation of grain. In: Industrial Fermentations (Underkofler, L. A., and Hickey, R. J., eds.), pp. 17–72. Chemical Publishing Co., New York.

    Google Scholar 

  • Theurer, J. C., Doney, D. L., and Gallian, J. (1981) Fodder beet-potential alcohol fuel crop. Utah Science (Summer ed.), 63–67.

  • Westby, C. A., and Gibbons, W. R. (1982) Farm-scale production of fuel ethanol and wet grain from corn in a batch process. Biotechnol. Bioeng. 24, 1681–1699.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Gibbons, W.R., Westby, C.A. Effect of pulp pH on solid phase fermentation of fodder beets for fuel ethanol production. Biotechnol Lett 8, 657–662 (1986). https://doi.org/10.1007/BF01025977

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01025977

Keywords

Navigation