EFFECT OF LOW ELECTRIC CURRENT ON PRODUCTION OF BIOSURFACTANT BY Pseudomonas aeruginosa
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Date
2019-10-31
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Abstract
Several studies have been attempted to investigate the effect of different cultural parameters on
the performance of biosurfactant production by microorganisms. In literature, the studies devoted to
the use of electric current are mostly focused on the treatment of wastewaters by electrocoagulation.
However, to the best of our knowledge, no studies have been reported on the direct effect of electric
current on microbial production of biosurfactants. The main purpose of this study was to investigate
the effect of direct electric current on the performance of a biosurfactant-producing strain
Pseudomonas aeruginosa, to produce biosurfactant under aerobic conditions. The effect of direct
electric current on the biosurfactant production was evaluated by varying the inter-electrode distance
(d) (2, 4 and 6cm) with current density values (D) of 3µA/cm2 for 3 days at room temperature. The
results clearly showed that direct current application with distance between electrodes of 2 cm yielded
the highest biosurfactant production, and emulsification index (E24). Besides, the production cost
decreases of about 20% with electric current application, which contributes very slightly in the total
energy consumption cost. This method might, in the future, lead the way towards profitable
application in enhancing biosurfactant production.
Description
“The Third International Congress of Biochemistry & Microbiology Applied
Technologies, BMAT’2019”
between 31st October and 03rd November 2019, Tunisia.
Keywords
biosurfactant; electric current; emulsification index; Pseudomonas aeruginosa.