Biodiversity of Biosurfactants and Roles in Enhancing the (Bio)availability of Hydrophobic Substrates

Perfumo, Amedea; Rudden, Michelle; Marchant, Roger; Banat, İbrahim M.

doi:10.1007/978-3-319-50542-8_35

Cited by 15 publications

(13 citation statements)

References 156 publications

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“…Since polar environments are typically pristine, we speculate that the ecological role of biosurfactants is to support the ability of microbial communities to metabolize plant-derived material (e.g., lignin, cellulose, hemicellulose, tannins, phenols), which are naturally enriched in organic hydrocarbon and aromatic compounds. Biosurfactants are likely to act in synergy with extracellular enzymes by increasing solubilization and mobilization, and hence the bioavailability of the hydrophobic residues originating from the hydrolysis of complex biopolymers [19]. Thus, it seems plausible that biosurfactants play a primary ecological role in the turnover of carbon and nutrients in extreme cold soils.…”

Section: Box 1 Definition Of Psychrophile [ 2 9 1 _ T D $ D I F F ] mentioning

confidence: 99%

Going Green and Cold: Biosurfactants from Low-Temperature Environments to Biotechnology Applications

Perfumo

Banat

Marchant

2018

Trends in Biotechnology

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136

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Approximately 80% of the Earth's biosphere is cold, at an average temperature of 5°C, and is populated by a diversity of microorganisms that are a precious source of molecules with high biotechnological potential. Biosurfactants from cold-adapted organisms can interact with multiple physical phases - water, ice, hydrophobic compounds, and gases - at low and freezing temperatures and be used in sustainable (green) and low-energy-impact (cold) products and processes. We review the biodiversity of microbial biosurfactants produced in cold habitats and provide a perspective on the most promising future applications in environmental and industrial technologies. Finally, we encourage exploring the cryosphere for novel types of biosurfactants via both culture screening and functional metagenomics.

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Section: Box 1 Definition Of Psychrophile [ 2 9 1 _ T D $ D I F F ] mentioning

confidence: 99%

Going Green and Cold: Biosurfactants from Low-Temperature Environments to Biotechnology Applications

Perfumo

Banat

Marchant

2018

Trends in Biotechnology

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136

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“…Producing microorganisms are distributed in various genres, mostly bacteria; some examples are Pseudomonas aeruginosa , Bacillus subtilis and Lactobacillus sp. [3, 4]. The major classes of biosurfactants include glycolipids, lipopeptides, phospholipids, fatty acids, lipoproteins and polymeric and particulates compounds [5, 6].…”

Section: Introductionmentioning

confidence: 99%

Sustainable biosurfactant produced by Serratia marcescens UCP 1549 and its suitability for agricultural and marine bioremediation applications

et al. 2019

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BackgroundBiosurfactants are surface-active agents produced by microorganisms that have higher efficiency and stability, lower toxicity and higher biocompatibility and biodegradability than chemical surfactants. Despite its properties and potential application in a wide range of environmental and industrial processes, biosurfactants are still not cost-competitive when compared to their synthetic counterparts. Cost effective technologies and renewable raw substrates as agro-industrial and regional waste from northeast of Brazil as cassava flour wastewater, supplemented with lactose and corn oil are mainly the chemically media for growing microorganism and in turn the production of the biosurfactant of quality. This study aimed to obtained biosurfactant by Serratia marcescens UCP 1549 containing cassava flour wastewater (CWW), by application of a full-factorial design, as sustainable practices in puts the production process in promising formulation medium. The characterization of the biomolecule was carried out, as well as the determination of its stability and toxicity for cabbage seeds. In addition, its ability to stimulate seed germination for agriculture application and oil spill bioremediation were investigated.ResultsSerratia marcescens showed higher reduction of surface tension (25.92 mN/m) in the new medium containing 0.2% lactose, 6% cassava flour wastewater and 5% corn waste oil, after 72 h of fermentation at 28 °C and 150 rpm. The substrate cassava flour wastewater showed a promising source of nutrients for biosurfactant production. The isolate biosurfactant exhibited a CMC of 1.5% (w/v) and showed an anionic and polymeric structure, confirmed by infrared spectra. The biomolecule demonstrated high stability under different temperatures, salinity and pH values and non-toxicity against to cabbage seeds. Thus, exploring biosurfactant their potential role in seeds germinations and the promotion and agricultural applications was investigated. In addition, the effectiveness of biosurfactant for removal burned motor oil adsorbed in sand was verified.ConclusionsThe use of medium containing CWW not only reduces the cost of process of biosurfactant production, but also the environmental pollution due to the inappropriate disposal of this residue. This fact, added to the high stability and non-toxicity of the biosurfactant produced by S. marcescens UCP 1549, confirms its high environmental compatibility, make it a sustainable biocompound that can be replace chemical surfactants in diverse industries. In addition, the effectiveness of biosurfactant for stimulate seed germination and removing burned motor oil from sand, suggests its suitability for agriculture and bioremediation applications.Electronic supplementary materialThe online version of this article (10.1186/s12934-018-1046-0) contains supplementary material, which is available to authorized users.

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“…Cassava wastewater is the main effluent from the cassava press due to the industrial production of flour. The chemical composition basically constitutes carbohydrates, nitrogen, and several mineral salts, characterizing itself as a supplement with significant potential [25][26][27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

An Efficient Bioemulsifier-Producing Bacillus subtilis UCP 0146 Isolated from Mangrove Sediments

Maia

Santos

Fereira

et al. 2018

Colloids and Interfaces

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In this work, we investigated the potential of Bacillus subtilis UCP 0146 in the bioconversion of a medium containing 100% cassava flour wastewater to obtain a bioemulsifier. The evaluation of the production was carried out by the emulsification index (IE24) and the surface tension (ST). The ionic charge, stability (temperature, salinity, and pH measured by IE24 and viscosity), and ability to remove and disperse oil and textile dye were investigated. B. subtilis produced an anionic bioemulsifier in the medium containing 100% cassava wastewater under Condition 4 of the factorial design (inoculum 9% at a temperature of 35 °C and shaken at 100 rpm), and showed a surface tension of 39 mN/m, an IE24 of 95.2%, and a yield of 2.69 g·L−1. The bioemulsifier showed stability at different pH (2–8), temperatures (0–120 °C), and NaCl concentrations, a dispersion oil displacement area (ODA) test of 55.83 cm2, and a reduction of the viscosity of the burned engine oil (90.5 Cp). The bioemulsifier was able to remove petroleum (94.4%) and methylene blue azo dye (62.2%). The bioemulsifier and its synthesis from bacteria also emphasizes the role of surfactants in oil remediation.

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Biodiversity of Biosurfactants and Roles in Enhancing the (Bio)availability of Hydrophobic Substrates

Cited by 15 publications

References 156 publications

Going Green and Cold: Biosurfactants from Low-Temperature Environments to Biotechnology Applications

Going Green and Cold: Biosurfactants from Low-Temperature Environments to Biotechnology Applications

Sustainable biosurfactant produced by Serratia marcescens UCP 1549 and its suitability for agricultural and marine bioremediation applications

An Efficient Bioemulsifier-Producing Bacillus subtilis UCP 0146 Isolated from Mangrove Sediments

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