首页 | 本学科首页   官方微博 | 高级检索  
     


Biotransformation of selected monoterpenes under nitrate-reducing conditions
Authors:S. G. Pavlostathis  G. Misra
Affiliation:(1) School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0512, USA e-mail: spyros.pavlostathis@ce.gatech.edu Tel.: +1-404-8949367 Fax: +1-404-8948266, US
Abstract:Batch experiments were conducted to assess both the biotransformation potentials of one hydrocarbon (α-pinene) and four alcohol monoterpenes (arbanol, linalool, plinol, and α-terpineol) under nitrate-reducing conditions at 23 °C, as well as their effects on the nitrate-reducing process. A mixed, nitrate-reducing culture developed from a forest-soil extract was enriched using ethanol as the electron donor and used in this study. α-Pinene was not biotransformed under the conditions of this study and inhibited both ethanol and nitrate utilization. Partial transformation of the alcohol monoterpenes was observed and resulted in inhibition of the nitrate-reducing process and cessation of further utilization of the added monoterpenes. Accumulation of biotransformation products – mainly hydrocarbon monoterpenes such as camphene, β-myrcene, and d-limonene – was observed. The hydrocarbon monoterpenes formed may have been responsible for the observed inhibition of the nitrate-reducing process and lack of complete utilization of the alcohol monoterpenes. These results have significant implications for the expected rate and extent of biotransformation of monoterpenes under anoxic conditions as well as their effect on the nitrate-reducing process in both engineered and natural systems. Received: 8 December 1998 / Received revision: 9 June 1999 / Accepted: 27 June 1999
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号