Microbial Biosurfactants and Their Potential Applications: An Overview

Borah, Debajit; Chaubey, Anu; Sonowal, Abhijit; Gogoi, Bhaskarjyoti; Kumar, Rupesh

doi:10.1007/978-981-15-6607-3_5

Cited by 6 publications

(2 citation statements)

References 60 publications

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“…Microbial enhanced oil recovery (MEOR) is a critical step in oil recovery in which microbes or primary or secondary metabolites contribute significantly to oil removal in depleted zones (Geetha et al 2018). Oil has been trapped in the pores due to capillary pressure, which the biosurfactant will easily remove, well-known for its characteristics to reduce the interfacial surface tension between oil and the rock (Borah et al 2021). The structure-function relationship of microbial biosurfactants draws researchers to investigate their prospects in bioremediation (Kumar and Ngueagni 2021).…”

Section: Oil Degradation Aided By Microorganismsmentioning

confidence: 99%

Extraction, purification and applications of biosurfactants based on microbial-derived glycolipids and lipopeptides: a review

et al. 2021

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Microbial biosurfactants are sustainable alternatives for synthetic counterparts, and display high biodegradability, environmental compatibility, and high selectivity. While previous reports have focussed on production yield, little attention has been paid on downstream processing of biosurfactants, a critical step that controls quality. Here we review methods for biosurfactant downstream processing with focus on glycolipids and lipopeptidesglycolipids and lipopeptides. Solvent extraction, foam fractionation, and sweep floc coagulation allow to reach a purity of 55-70%. While distillation can be implemented prematurely, methods like ultrafiltration and chromatography are used as final processing to recover 90-95% of biosurfactant with 78-95% of purity. We present the cheapest and most efficient downstream techniques for industries to achieve acceptable product quality. This paper puts forth the environmental applications of biosurfactants. We review applications in treating hydrophobic organic pollutants and heavy metals in soils and water. The removal efficiency of biosurfactants reaches 96%. Biosurfactants in the detergent industry, microbial enhanced oil recovery, and soil washing are also discussed.

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Section: Oil Degradation Aided By Microorganismsmentioning

confidence: 99%

Extraction, purification and applications of biosurfactants based on microbial-derived glycolipids and lipopeptides: a review

et al. 2021

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“…Biosurfactants are encoded by several genes and synthesized by a variety of microorganisms such as Bacillus sp., Pseudomonas sp., Acinetobacter sp., Candida sp., Cryptococcus sp., Penicillium sp., Aspergillus sp., Kurtzmanomyces sp., Rhodococcus sp., Sphingomonas sp., Arthrobacter sp., Lactococcus sp., and Pseudozyma sp. ( Borah et al, 2021 ). Among these, the genus Bacillus is the most prevalent in biosurfactant production.…”

Section: Introductionmentioning

confidence: 99%

Genetic Evidences of Biosurfactant Production in Two Bacillus subtilis Strains MB415 and MB418 Isolated From Oil Contaminated Soil

Yasmin

Aslam

Fariq

2022

Front. Bioeng. Biotechnol.

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Biosurfactants are a diverse group of amphiphilic compounds obtained from microbes. In the present study, the genomic analysis of biosurfactant-producing Bacillus subtilis MB415 and MB418 obtained from oil-contaminated soil was performed. Initially, the strains were screened for biosurfactant production by hemolytic assay, emulsification index, and oil displacement. Further FTIR analysis of extracted biosurfactants revealed the presence of lipopeptides. The sequenced genomes of MB415 and MB418 were of 4.2 Mbps with 43% GC content. Among more than 4,500 protein-coding genes, many were involved in virulence, metal/multidrug resistances, flagella assembly, chemotactic response, and aromatic ring hydroxylating dioxygenases. An annotation analysis revealed that both genomes possessed non-ribosomal synthetase gene clusters for the lipopeptide synthetases srf and fen responsible for surfactin and fengycin production. Comparative studies of both genomes highlighted variability in gene operons mainly for surfactin biosynthesis.

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Harnessing Biosurfactants from Soil Bacteria: Advancing Green Technology for Environmental Sustainability

Arab,

Malki,

Moumene

et al. 2024

Soil Microbiome in Green Technology Sustainability

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Microbial Biosurfactants and Their Potential Applications: An Overview

Cited by 6 publications

References 60 publications

Extraction, purification and applications of biosurfactants based on microbial-derived glycolipids and lipopeptides: a review

Extraction, purification and applications of biosurfactants based on microbial-derived glycolipids and lipopeptides: a review

Genetic Evidences of Biosurfactant Production in Two Bacillus subtilis Strains MB415 and MB418 Isolated From Oil Contaminated Soil

Harnessing Biosurfactants from Soil Bacteria: Advancing Green Technology for Environmental Sustainability

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