What is it about?
Surface active compounds such as biosurfactants and bioemulsifiers are bio-molecules that produced by microorganisms have the ability to solublize two immiscible liquids. Fourteen yeast isolates were obtained from commercial yeast, fruits and vegetables. Only one isolate (Saccharomyces cerevisiae) was able to produce biosurfactant with the most optimum emulsification activity (58%). The biosurfactant was extracted by autoclaving at 121˚C for 30 min, it was able to form emulsions with crude oil, cooking oil, machine oil and olive oil with emulsification index 100%, 56%, 80% and 35% for each oil respectively. The biosurfactant was used to aid Pseudomonas aeruginosa in the biodegradation of crude oil to 33.25%, however the addition of 1ml of the extracted biosurfactant aid P.aeruginosa to 50.5% but didn’t increase biodegradation (26.16%) when volume of biosurfactant increased to1.5ml.
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Why is it important?
Our finding proved that biosurfactant can be used to increase the biodegradation of crude oil
Perspectives
I hope this article helps in environmental researches
Zeena Ali
Read the Original
This page is a summary of: Extraction of surface active compounds from yeast to aid the biodegradability of petroleum by Pseudomonas Aeruginosa, January 2022, American Institute of Physics,
DOI: 10.1063/5.0091801.
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