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| Content Provider | Springer Nature Link |
|---|---|
| Author | Jo, Youl Lae Kim, Byung Keuk |
| Copyright Year | 2011 |
| Abstract | A microorganism for biological control of sludge bulking was isolated from soil. The isolated microorganism was able to degrade the sheath of the Sphaerotilus natans causing a bulking of activated sludge. The isolated strain, FK3, was identified as a Terrabacter species by analysis of its 16S rRNA genetic sequence. Glucose (0.1%, w/v) and 0.1% yeast extract as carbon and nitrogen sources, respectively, were used in the medium for Terrabacter sp. FK3 growth and enzyme production. Sheath-degrading crude enzyme was purified from a Terrabacter sp. FK3 culture broth via ultrafiltration, followed by DEAE-cellulose chromatography. Although the enzyme activity was optimal at pH 8 and 30°C, the enzyme maintained stable activity below 50°C and in the pH range from 5–10. Sheath-degrading enzyme activity was accelerated by addition of Mg$^{2+}$, Ca$^{2+}$, and Fe$^{2+}$, but inhibited by addition of Ag$^{2+}$ or Hg$^{2+}$. Catalysis was additionally promoted by addition of hydroxyurea, sodium azide, and iodoacetic acid, but inhibited by EDTA. |
| Starting Page | 750 |
| Ending Page | 757 |
| Page Count | 8 |
| File Format | |
| ISSN | 17382203 |
| Journal | Journal of the Korean Society for Applied Biological Chemistry |
| Volume Number | 54 |
| Issue Number | 5 |
| e-ISSN | 2234344X |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2011-01-01 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Terrabacter sp. Sphaerotilus natans Applied Microbiology Biological Techniques filamentous bacterium sheath-degrading enzyme bulking Bioorganic Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Biochemistry, Genetics and Molecular Biology |
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