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Enhanced Oil Recovery using a Combination of Biosurfactants
Published on: June 3, 2022
Exopolysaccharides produced by Gordonia alkanivorans enhance bacterial degradation activity for diesel
Lin Ta-Chen1, Jo-Shu Chang, Chiu-Chung Young
1Sustainable Environment Research Center, National Cheng Kung University, No. 1 University Road, Tainan, 70101, Taiwan.
Abstract:
Exopolysaccharides (EPS) produced by Gordonia alkanivorans CC-JG39 was used to stimulate cell floating, cell growth, and diesel biodegradation of indigenous or commercial-available, diesel-degrading bacteria. Addition of EPS-containing supernatant into the culture medium resulted in floatation of the non-floating bacteria and allowed a 40-45% and 38-42% increase in diesel degradation and cell growth, respectively. The EPS-stimulating effect on cell growth and diesel degradation positively correlated with the EPS dosage. Thus, the EPS may act as a biostimulant for bioremediation of oil-contaminated water or soil.
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