Abstract
Surfactin produced by Bacillus subtilis (ATCC 21332) was used to examine the effect of altering salt concentration, pH, and temperature on surfactin activity (as measured by reductions in surface tension). These parameters are some of the conditions that define oil reservoir characteristics and can affect the application of surfactants. The Biotechnology for Oilfield Operations research program at the Idaho National Engineering and Environmental Laboratory (INEEL) has successfully produced surfactin from potato process effluents for possible use as an economical alternative to chemical surfactants for improved oil recovery. Surfactants enhance the recovery of oil through a reduction of the interfacial tension between the oil and water interfaces, or by mediating changes in the wettability index of the system. We investigated changes in surfactin activity under a range of conditions by measuring surface tension. Surface tension was determined using video image analysis of inverted pendant drops. Experimental variables included NaCI (0–10%), pH (3.0–10.0), and temperature (21–70°C). Each of these parameters, as well as selected combinations, resulted in discrete changes in surfactin activity. It is therefore important to consider the exploration of the studied surfactin as an enhanced oil recovery agent.
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References
Davis, D. A., Lynch, H. C., and Varley, J. (1999), Enzyme Microb. Techno. 25, 322–329.
Fox, S. L. and Bala, G. A. (2000), Bioresour. Technol. 75, 235–240.
Thompson, D. N., Fox, S. L., and Bala, G. A. (2000), Appl. Biochem. Biotechnol. 84–88, 917–930.
Noah, K. S., Fox S. L., Bruhn, D. F., Thompson, D. N., and Bala, G. A. (2002), Appl. Bioclen. Biotechnol. 98–100, 803–813.
Herd, M. D., Lassahn, G. D., Thomas, C. P., Bala, G. A., and Eastman, S. L. (1992), in Proceedings of the DOE Eighth Symposium on Enhanced Oil Recovery, SPE/DOE 24206, Society of Petroleum Engineers (SPE), Tulsa, OK.
Gallet, X., Deleu, M., Razafindralambo, H., Jacques, P., Thonart, P., Paquot, M., and Brasseur, R. (1999), Langmuir 15, 2409–2413.
Morikawa, M., Hirata, Y., and Imanaka, T. (2000), Biochirn. Biophys. Acta 1488, 211–218.
Grangemard, I., Wallach, J., Maget-Dana, R., and Peypoux, F. (2001), Appl. Biochen. Biotechnol. 90, 199–210.
Thompson, D. N., Fox, S. L., and Bala, G. A. (2001), Appl. Biochem. Biotechnol. 91–93, 487–501.
Ersson, B., Ryden, L., and Janson, J. C. (1998), in Protein Purification, Janson, J. C. and Ryden, L., eds., Wiley, New York, NY, pp. 3–40.
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Schaller, K.D., Fox, S.L., Bruhn, D.F., Noah, K.S., Bala, G.A. (2004). Characterization of Surfactin from Bacillus subtilis for Application as an Agent for Enhanced Oil Recovery. In: Finkelstein, M., McMillan, J.D., Davison, B.H., Evans, B. (eds) Proceedings of the Twenty-Fifth Symposium on Biotechnology for Fuels and Chemicals Held May 4–7, 2003, in Breckenridge, CO. Biotechnology for Fuels and Chemicals. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-59259-837-3_67
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DOI: https://doi.org/10.1007/978-1-59259-837-3_67
Publisher Name: Humana Press, Totowa, NJ
Print ISBN: 978-1-4684-9873-8
Online ISBN: 978-1-59259-837-3
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