دورية أكاديمية
Microbial mineralization of diisopropanolamine.
| العنوان: | Microbial mineralization of diisopropanolamine. |
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| المؤلفون: | Gieg LM; Department of Biological Sciences, University of Alberta, Edmonton, Canada., Coy DL, Fedorak PM |
| المصدر: | Canadian journal of microbiology [Can J Microbiol] 1999 May; Vol. 45 (5), pp. 377-88. |
| نوع المنشور: | Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Canadian Science Publishing Country of Publication: Canada NLM ID: 0372707 Publication Model: Print Cited Medium: Print ISSN: 0008-4166 (Print) Linking ISSN: 00084166 NLM ISO Abbreviation: Can J Microbiol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: 2011- : Ottawa, ON : Canadian Science Publishing Original Publication: Ottawa, Canada : National Research Council, [1954- |
| مواضيع طبية MeSH: | Gram-Positive Rods/*metabolism , Propanolamines/*metabolism, Aerobiosis ; Anaerobiosis ; Arthrobacter/growth & development ; Arthrobacter/metabolism ; Biodegradation, Environmental ; Gram-Positive Rods/growth & development ; Iron/metabolism ; Manganese/metabolism ; Nitrates/metabolism ; Temperature |
| مستخلص: | Diisopropanolamine (DIPA) is a "sweetening agent" used to remove hydrogen sulfide from sour natural gas, and it is a contaminant at some sour gas treatment facilities in western Canada. To investigate the biodegradation of this alkanolamine, 14C-DIPA was used in anaerobic and aerobic mineralization studies. Between 3 and 78% of the radioactivity from this compound was released as 14CO2 in sediment-enrichment cultures incubated under nitrate-reducing conditions. Similarly, 12-78% of the label was converted to 14CO2 in sediment-enrichment cultures incubated under Mn(IV)-reducing conditions. These activities were observed at 8 degrees C, a typical groundwater temperature in western Canada, and at 28 degrees C. In contrast, DIPA-degrading activity was difficult to sustain under Fe(III)-reducing conditions, and < 25% of the radioactive label from 14C-DIPA was liberated as 14CO2. Two mixed cultures and two isolates (both irregular, non-sporeforming, Gram-positive rods) were used to assess aerobic mineralization of 14C-DIPA. The aerobic mixed cultures released 73 and 79% of the radioactive label as 14CO2, whereas the pure cultures liberated only 39 and 47% as 14CO2. Between one-third and one-half of the nitrogen from DIPA was found as ammonium-N in aerobic batch cultures. These results clearly demonstrate that DIPA is mineralized under a variety of incubation conditions. |
| المشرفين على المادة: | 0 (Nitrates) 0 (Propanolamines) 0W44HYL8T5 (diisopropanolamine) 42Z2K6ZL8P (Manganese) E1UOL152H7 (Iron) |
| تواريخ الأحداث: | Date Created: 19990814 Date Completed: 19990909 Latest Revision: 20190720 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1139/cjm-45-5-377 |
| PMID: | 10446713 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 0008-4166 |
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| DOI: | 10.1139/cjm-45-5-377 |