Daugulis Andrew J, McCracken Colleen M
Department of Chemical Engineering, Queen's University, Kingston, Ontario, Canada K7L 3N6.
Biotechnol Lett. 2003 Sep;25(17):1441-4. doi: 10.1023/a:1025007729355.
A mixture of six polyaromatic hydrocarbons (naphthalene, phenanthrene, fluoranthene, pyrene, chyrysene and benzo[a]pyrene), varying in size from 2 to 5 rings, was dissolved in dodecane, and used as the delivery phase of a partitioning bioreactor. Two species of Sphingomonas were then used individually, and as a consortium, to determine which of the PAHs were degraded. Only low molecular weight PAHs (naphthalene, phenanthrene and fluoranthene) were degraded by the individual strains, but the consortium degraded all substrates either to completion or near completion.
将六种大小从2到5个环不等的多环芳烃(萘、菲、荧蒽、芘、屈和苯并[a]芘)的混合物溶解在十二烷中,并用作分配生物反应器的输送相。然后分别使用两种鞘氨醇单胞菌属细菌,并将它们作为一个混合菌群,以确定哪些多环芳烃被降解。单个菌株只能降解低分子量的多环芳烃(萘、菲和荧蒽),但混合菌群能将所有底物降解至完全或接近完全。