Biodegradation process of crude oil and bioemulsifier activity by a bacterial consortium culture

4th International Conference on Biological Sciences and Biotechnology

Rangkuti, M.N.S.^1 ; Idramsa^1 ; Pulungan, S.S.^1

Department of Biology Faculty of Mathematics, Natural Sciences State University of Medan, Jalan Willem Iskandar Psr V Medan Estate, Medan

20211, Indonesia^1

关键词: Bacterial consortium;    Biodegradation process;    Biosurfactant production;    Contaminated areas;    Emulsification index;    Enhanced bioremediation;    Incubation periods;    Water surface tension;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/305/1/012069/pdf
DOI  :  10.1088/1755-1315/305/1/012069

来源: IOP

【 摘 要 】

This study reports the analysis of biosurfactant production by a bacterial consortium culture (CC) during biodegradation of crude oil. The ability of CC (5% v/v), grown in Minimal Medium (MM) added with 1% (v/v) Tapis crude oil, to produce biosurfactant under different incubation times (0, 2, 4, 6 and 8 week) was investigated. Biosurfactant activity was estimated by water surface tension changes and emulsification index (E24). Maximum biosurfactant production was observed at 2 weeks incubation period, after which the yield gradually decreased. The biosurfactant produced by the CC significantly decreased the surface tension of water from 72 dynes/cm to 52 dynes/cm (p 24) of 85% (p