摘要
从船舶含油污水中筛选出2株海洋低温石油降解菌,分别命名为YW-1和YW-2。通过16SrRNA基因测序方法鉴定这两株菌分别属于交替假单胞菌和盐单胞菌。菌株YW-1在0℃、5℃和15℃的条件下降解培养15天后,可将初始浓度1%的柴油分别降解45%、65%和82%,而菌株YW-2降解38%、60%、75%。菌株YW-1和YW-2在4℃的条件下降解培养15天后,可将发酵液的表面张力分别降低至31 mN/m和28 mN/m。
Two cold-adapted petroleum degrading bacteria were isolated from shipboard oily wastewater, named YW-1 and YW-2. The isolated strains were identified as genera Pseudoalteromonas and Halomonas based on 16S rRNA gene sequence. After 15 days of biodegradation at 0 ℃, 5 ℃ and 15 ℃, 45 %, 65 %, 82 %and 38 %, 60 %, 75 % diesel oil were degraded by bacteria YW-1 and YW-2, respectively. After 15 days of growth at 4 ℃, the surface tension values for the cell free supernatants of stain YW-1 and YW-2 were lowered to 31 m N/m and 28 m N/m, respectively.
作者
唐诗
郭平
韦丹
魏丹娜
曹宾霞
Tang Shi;Guo Ping;Wei Dan;Wei Danna;Cao Binxia(College of Environmental Science and Engineering of Dalian Maritime University,Dalian 116026;Dalian Environmental Monitoring Center,Dalian 116023,China)
出处
《广东化工》
CAS
2022年第7期116-118,共3页
Guangdong Chemical Industry
基金
极地船舶航行安全研究中心开放基金(3132019304),辽宁省自然基金指导计划(2019-ZD-0163),2020年大连海事大学教改项目(2020Y72)。
关键词
船舶含油污水
石油降解菌
生物降解
低温
表面张力
shipboard oily wastewater
petroleum degrading bacteria
biodegradation
low temperature
surface tension
