Inicio  /  Acta Scientiarum: Technology  /  Vol: 41 Par: 0 (2019)  /  Artículo
ARTÍCULO
TITULO

Lipopeptide biosurfactant produced by Mucor Circinelloides UCP/WFCC 0001 applied in the removal of crude oil and engine oil from soil

Nathália Sá Alencar do Amaral Marques    
Thayse Alves de Lima e Silva    
Rosileide Fontenele da Silva Andrade    
Jeann Fabiann Branco Júnior    
Kaoru Okada    
Galba Maria Campos Takaki    

Resumen

 Biosurfactants are molecules synthesized by a wide variety of microorganisms They are characterized by the ability to reduce surface tension and act in the dispersion, solubilization, mobilization, removal and viscosity of petroleum and its derivatives. The aim of this study was to produce biosurfactant using the filamentous fungus M. circinelloides in cultivation with previously established conditions to evaluate its properties, characterize the chemical structure and investigate the application of the biomolecule in the hydrocarbon recovery. Biosurfactant yield was 6.0 g L-1. The surface tension was reduced to 26 mN m-1 with a critical micelle concentration (CMC) of 1.5%. The biosurfactant exhibited stability to surface tension under adverse environmental conditions. M. circinelloides surfactant is similar to chemical surfactants for presenting Oil displacement area of 50 cm2 in water-in-oil dispersion, as well as reduce the oil viscosity from 843.6 to 14.7 cP. Physical-chemical analyzes showed that the biosurfactant produced is a lipopeptide. The cationic character was identified by performing the zeta potential. The biosurfactant demonstrated no toxicity and recovered 95.9% of motor oil adsorbed on a clay soil sample, presenting considerable potential for use in bioremediation processes, especially in the petroleum industry.

 Artículos similares

       
 
Ping Guo, Wei-Wei Xu, Dan-Na Wei, Man-Xia Zhang, Jin Zhang, Shi Tang, Bin-Xia Cao, Jian-Guo Lin and Wei Li    
The removal of oil contaminants in marine intertidal sediments under cold climate is an urgent issue. Although the bioavailability of petroleum hydrocarbons decreases at low temperatures, biosurfactants can promote oil biodegradation. In this study, char... ver más

 
Sandia Primeia, Chihiro Inoue and Mei-Fang Chien    
Bioremediation is one of the promising environment-friendly approaches to eliminate oil contamination. However, heavy oil is known to degrade slowly due to its hydrophobicity. Therefore, microorganisms capable of producing biosurfactants are gaining subs... ver más

 
Farah Nasyitah binti Esa     Pág. 36
Chemical synthesized demulsifier in oil industry has caused environmental issues and costly. Rhamnolipid biosurfactant produced from Pseudomonas aeruginosa NR2 (Ps. NR. 22) has unique properties to demulsify the unwanted emulsion by lowering the interfac... ver más

 
Danielle dos Santos Tavares Pereira, Amanda Lys Santos Silva, Ana Maria Queijeiro López     Pág. 33 - 36
The intention of this work was to evaluate the growth of Pseudomonas aeruginosa (C1 LBPVMA-UFAL) on lubricant oil and verify the production of rhamnolipid biosurfactant. Tests in solid medium containing lubricant oil supplemented with different sources o... ver más