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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kim, Lan-Hee Lee, Sang-Seob |
| Description | Author Affiliation: Kim LH ( Department of Biotechnology, Kyonggi University, Suwon 433-760, Republic of Korea.) |
| Abstract | Pseudomonas putida E41 was isolated from oil-contaminated soil and showed its ability to grow on ethyl-benzene as the sole carbon and energy source. Moreover, P. putida E41 show the activity of biodegradation of ethylbenzene in the batch culture. E41 showed high efficiency of biodegradation of ethylbenzene with the optimum conditions (a cell concentration of 0.1 g wet cell weight/L, pH 7.0, 25°C, and ethylbenzene concentration of 50 mg/L) from the results of the batch culture. The maximum degradation rate and specific growth rate (µ(max)) under the optimum conditions were 0.19+0.03 mg/mg-DCW (Dry Cell Weight)/h and 0.87+0.13 h(-1), respectively. Benzene, toluene and ethylbenzene were degraded when these compounds were provided together; however, xylene isomers persisted during degradation by P. putida E41. When using a bioreactor batch system with a binary culture with P. putida BJ10, which was isolated previously in our lab, the degradation rate for benzene and toluene was improved in BTE mixed medium (each initial concentration: 50 mg/L). Almost all of the BTE was degraded within 4 h and 70-80% of m-, p-, and o-xylenes within 11 h in a BTEX mixture (initial concentration: 50 mg/L each). In summary, we found a valuable new strain of P. putida, determined the optimal degradation conditions for this isolate and tested a mixed culture of E41 and BJ10 for its ability to degrade a common sample of mixed contaminants containing benzene, toluene, and xylene. |
| File Format | HTM / HTML |
| ISSN | 12258873 |
| Issue Number | 4 |
| Volume Number | 49 |
| e-ISSN | 19763794 |
| Journal | Journal of Microbiology |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2011-08-01 |
| Publisher Place | Korea (South) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Benzene Derivatives Metabolism Pseudomonas Putida Batch Cell Culture Techniques Biodegradation, Environmental Bioreactors Dna, Bacterial Molecular Sequence Data Phylogeny Classification Genetics Isolation & Purification Rna, Ribosomal, 16s Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Microbiology Applied Microbiology and Biotechnology |
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