1. A comparison between conventional Pseudomonas aeruginosa rhamnolipids and Escherichia coli transmembrane proteins for oil recovery enhancing
- Author
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Andrés Fernando González Barrios, Maria Alejandra Tibaquirá Martínez, Astrid Catalina Alvarez Yela, Guillermo Andrés Rangel Piñeros, Wolf-Rainer Abraham, Vanessa Lucia Nuñez Velez, Santiago Hernández Villamizar, Martha Josefina Vives Florez, and Viviana Clavijo López
- Subjects
0106 biological sciences ,0301 basic medicine ,Strain (chemistry) ,Low toxicity ,Pseudomonas aeruginosa ,Rhamnolipid ,medicine.disease_cause ,01 natural sciences ,Microbiology ,Transmembrane protein ,Biomaterials ,Oil displacement ,03 medical and health sciences ,chemistry.chemical_compound ,030104 developmental biology ,Microbial enhanced oil recovery ,chemistry ,010608 biotechnology ,medicine ,Waste Management and Disposal ,Escherichia coli - Abstract
Biosurfactants have emerged as a remarkable strategy for microbial enhanced oil recovery (MEOR) due to their amphipatic nature, superficial activity and low toxicity. On one hand, conventional biosurfactants for MEOR belong to the rhamnolipids group, which are surface-active compounds of glycolipid-type. On the other hand, transmembrane proteins have been studied in recent years and have shown good surface tension reduction potential. This work aimed to evaluate and compare the emulsification index (EI), oil displacement ability (ODA) and additional oil recovery (AOR) percentages of rhamnolipids produced by a native isolate Pseudomonas aeruginosa strain Pa4 and OmpA produced by Escherichia coli. The results confirmed a high recovery potential for both of the biosurfactants with the best superficial activity for P. aeruginosa rhamnolipid mixture (EI of 95% and ODA of 59.94 cm2) and the highest recovery for OmpA, obtaining an AOR of 12%.
- Published
- 2016
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