Hydrocarbon Biodegrading Characteristics of Hydrocarbon Degrading Bacteria Isolated from Seawater in Port Area

Abstract

Five bacterial isolates were previously isolated from seawaters with petroleum oil of Tianjin port. These isolates were detected under conditions that contained various types of hydrocarbon substances and different hydrocarbons degradability of the mixed strains. It turned out that the CH-series strains have a good degradation effect for phenanthrene, fluoranthene and pristane, for benzo(а)pyrene, two sets of experiments have a low degradation rate. These isolateds were grown on five concentration of n-Nonadecane as the sole source of carbnon. The abilities of these islotes to degrade n-Nonadecane have been investigated. For n-Nonadecane degradation the most efficient strain was CH2 which degraded 97.54%, 99.72%, 98.64%, 93.05% and 92.73% from 50mg/L, 20mg/L, 2mg/L, 200μg/L and 20μg/L, respectively.