TECHNICAL NOTE
Nov 1, 2000
Comparison of Mixed Cultures Based on Activity
Authors: Munruk Tuntoolavest and William D. BurgosAuthor Affiliations
Publication: Journal of Environmental Engineering
Volume 126, Issue 11
Abstract
Biodegradation experiments using mixed bacterial cultures are difficult to compare because repeatable rates may not be produced in different experiments when cultures are normalized on a cell mass or number basis. A technique was therefore developed to quantify [14C]substrate-specific biodegradation activity of mixed cultures. The technique can be used to obtain a preliminary estimate of the substrate-degrading activity of a culture for more substantial experiments. The technique is applied to 1-naphthol-humic acid bioavailability experiments using both mixed and pure cultures to help isolate the impact of humic acid from differences between the cultures.
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References
1.
Chorover, J., Amistadi, M. K., Burgos, W. D., and Hatcher, P. G. ( 1999). “Quinoline sorption on kaolinite-humic acid complexes.” Soil Sci. Soc. Am. J., 63, 850–857.
2.
Lehmicke, L. G., Williams, R. T., and Crawford, R. L. ( 1979). “14C-most-probable-number method for enumeration of active heterotrophic microorganisms in natural waters.” Appl. Envir. Microbiol., 38, 644–649.
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History
Received: Jan 27, 2000
Published online: Nov 1, 2000
Published in print: Nov 2000
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Authors
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Munruk Tuntoolavest
William D. Burgos
Member, ASCE
Grad. Res. Asst., Dept. of Civ. and Envir. Engrg., Pennsylvania State Univ., 212 Sackett Bldg., University Park, PA 16802-1408.
Asst. Prof., Dept. of Civ. and Envir. Engrg., Pennsylvania State Univ., 212 Sackett Bldg., University Park, PA. E-mail address: bburgos @psu.edu
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.