Microbial Surfactants: The Next Generation Multifunctional Biomolecules for Applications in the Petroleum Industry and Its Associated Environmental Remediation.

Autor: Fenibo EO; World Bank Africa Centre of Excellence, Centre for Oilfield Chemical Research, University of Port Harcourt, Port Harcourt 500272, Nigeria., Ijoma GN; Institute for the Development of Energy for African Sustainability, University of South Africa, Roodepoort 1709, South Africa., Selvarajan R; Department of Environmental Science, University of South Africa, Florida Campus, Rooderpoort 1709, South Africa., Chikere CB; Department of Microbiology, Faculty of Science, University of Port Harcourt, Port Harcourt 500272, Nigeria.
Jazyk: angličtina
Zdroj: Microorganisms [Microorganisms] 2019 Nov 19; Vol. 7 (11). Date of Electronic Publication: 2019 Nov 19.
DOI: 10.3390/microorganisms7110581
Abstrakt: Surfactants are a broad category of tensio-active biomolecules with multifunctional properties applications in diverse industrial sectors and processes. Surfactants are produced synthetically and biologically. The biologically derived surfactants (biosurfactants) are produced from microorganisms, with Pseudomonas aeruginosa , Bacillus subtilis Candida albicans , and Acinetobacter calcoaceticus as dominant species. Rhamnolipids, sophorolipids, mannosylerithritol lipids, surfactin, and emulsan are well known in terms of their biotechnological applications. Biosurfactants can compete with synthetic surfactants in terms of performance, with established advantages over synthetic ones, including eco-friendliness, biodegradability, low toxicity, and stability over a wide variability of environmental factors. However, at present, synthetic surfactants are a preferred option in different industrial applications because of their availability in commercial quantities, unlike biosurfactants. The usage of synthetic surfactants introduces new species of recalcitrant pollutants into the environment and leads to undesired results when a wrong selection of surfactants is made. Substituting synthetic surfactants with biosurfactants resolves these drawbacks, thus interest has been intensified in biosurfactant applications in a wide range of industries hitherto considered as experimental fields. This review, therefore, intends to offer an overview of diverse applications in which biosurfactants have been found to be useful, with emphases on petroleum biotechnology, environmental remediation, and the agriculture sector. The application of biosurfactants in these settings would lead to industrial growth and environmental sustainability.
Databáze: MEDLINE