Journal
BIORESOURCE TECHNOLOGY
Volume 224, Issue -, Pages 327-332Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.10.073
Keywords
Crude oil; Biodegradation; Co-culture of bacteria; Bacillus subtili; High throughput sequencing
Funding
- National Natural Science Foundation of China [41373097, 21677093]
- Program for Innovative Research Team in University [IRT13078]
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The aim of this work was to study biodegradation of crude oil by defined co-cultures of indigenous bacterial consortium and exogenous Bacillus subtilis. Through residual oil analysis, it is apparent that the defined co-culture displayed a degradation ratio (85.01%) superior to indigenous bacterial consortium (71.32%) after 7 days of incubation when ratio of inoculation size of indigenous bacterial consortium and Bacillus subtilis was 2:1. Long-chain n-alkanes could be degraded markedly by Bacillus subtilis. Result analysis of the bacterial community showed that a decrease in bacterial diversity in the defined co-culture and the enrichment of Burkholderiales order (98.1%) degrading hydrocarbons. The research results revealed that the promising potential of the defined co-culture for application to degradation of crude oil. (C) 2016 Elsevier Ltd. All rights reserved.
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