Anaerobic degradation of pyrrolidine and piperidine coupled with nitrate reduction |
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Authors: | Bae Hee-Sung Cho Young-Gyun Oh Sang-Eun Kim In-Soo Lee James M Lee Sung-Taik |
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Institution: | Department of Biological Sciences, Korean Advanced Institute for Science and Technology, Taejon, South Korea. |
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Abstract: | Biodegradability of secondary amines (pyrrolidine, piperidine, piperazine, morpholine, and thiomorpholine) under anaerobic conditions was examined in microbial consortia from six different environmental sites. The consortia degraded pyrrolidine and piperidine under denitrifying conditions. Enrichment cultures were established by repeatedly sub-culturing the consortia on pyrrolidine or piperidine in the presence of nitrate. The enrichments strictly required nitrate for the anaerobic degradation and utilized pyrrolidine or piperidine as a carbon, nitrogen, and energy source for their anaerobic growths. The anaerobic degradation of pyrrolidine and piperidine reduced nitrate to nitrogen gas, indicating that these anaerobic degradations were coupled with a respiratory nitrate reduction. |
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