請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/44693
標題: Identification and kinetic characteristics of an indigenous diesel-degrading Gordonia alkanivorans strain
作者: Young, C.C.
楊秋忠
Lin, T.C.
Yeh, M.S.
Shen, F.T.
Chang, J.S.
沈佛亭
關鍵字: biodegradation
biosurfactant
diesel oil
floating activity
Gordonia
alkanivorans
nocardia amarae
oil
biosurfactants
microorganisms
biodegradation
gene
rna
期刊/報告no:: World Journal of Microbiology & Biotechnology, Volume 21, Issue 8-9, Page(s) 1409-1414.
摘要: An indigenous strain Gordonia alkanivorans CC-JG39 was isolated from oil-contaminated sludge of a local gas station located in central Taiwan. The bacterial isolate was able to grow on diesel-containing Bushnell-Haas medium and also tolerate various chemical additives frequently used in petroleum products (e.g. BETX, methyl-tert-butyl ether, and naphthalene). Kinetics of diesel-limited cell growth and biodegradation of diesel followed a Monod-type model. The kinetic constants for cell growth (mu(max) and K(S,G)) were 0.158 h(-1) and 3196 mg/l, respectively, while those for biodegradation of diesel (v(max, diesel) and K(S,D)) were 3.59 mg/h/mg cell and 2874 mg/l, respectively. G. alkanivorans CC-JG39 produced extracellular surface-active material, leading to a low surface tension of nearly 33 mN/m. The CC-JG39 strain also possessed the ability to float towards the oil/water interface. These features might play some roles in enhancing the mass transfer efficiency between oil substrate and the bacterial cells. Therefore, G. alkanivorans CC-JG39 may have potential applications in bioremediation of oil pollution sites.
URI: http://hdl.handle.net/11455/44693
ISSN: 0959-3993
文章連結: http://dx.doi.org/10.1007/s11274-005-5742-7
顯示於類別:土壤環境科學系

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