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Parveen S, Akhtar N, E-Kobon T, Burchmore R, Hussain AI, Akhtar K. Biodesulfurization of organosulfur compounds by a trehalose biosurfactant producing Gordonia sp. isolated from crude oil contaminated soil. World J Microbiol Biotechnol 2024; 40:103. [PMID: 38372854 DOI: 10.1007/s11274-024-03899-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/17/2024] [Indexed: 02/20/2024]
Abstract
Certain factors hinder the commercialization of biodesulfurization process, including low substrate-specificity of the currently reported desulfurizing bacteria and restricted mass transfer of organic-sulfur compounds in biphasic systems. These obstacles must be addressed to clean organic-sulfur rich petro-fuels that pose serious environmental and health challenges. In current study, a dibenzothiophene desulfurizing strain, Gordonia rubripertincta W3S5 (source: oil contaminated soil) was systematically evaluated for its potential to remove sulfur from individual compounds and mixture of organic-sulfur compounds. Metabolic and genetic analyses confirmed that strain W3S5 desulfurized dibenzothiophene to 2-hydroxybiphenyl, suggesting that it follows the sulfur specific 4 S pathway. Furthermore, this strain demonstrated the ability to produce trehalose biosurfactants (with an EI24 of 53%) in the presence of dibenzothiophene, as confirmed by TLC and FTIR analyses. Various genome annotation tools, such as ClassicRAST, BlastKOALA, BV-BRC, and NCBI-PGAP, predicted the presence of otsA, otsB, treY, treZ, treP, and Trehalose-monomycolate lipid synthesis genes in the genomic pool of strain W3S5, confirming the existence of the OtsAB, TreYZ, and TreP pathways. Overall, these results underscore the potential of strain W3S5 as a valuable candidate for enhancing desulfurization efficiency and addressing the mass transfer challenges essential for achieving a scaled-up scenario.
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Affiliation(s)
- Sana Parveen
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Jhang Road, Faisalabad, 38000, Pakistan
| | - Nasrin Akhtar
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Jhang Road, Faisalabad, 38000, Pakistan.
| | - Teerasak E-Kobon
- Department of Genetics, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Rd, Lat Yao, Chatuchak, Bangkok, 10900, Thailand
| | - Richard Burchmore
- School of Infection & Immunity, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Abdullah Ijaz Hussain
- Central Hi-Tech Lab, Department of Chemistry, Government College University, Faisalabad, 38000, Pakistan
| | - Kalsoom Akhtar
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Jhang Road, Faisalabad, 38000, Pakistan
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Lopes S, Fahr E, Costa J, Silva AB, Lopes MM, Faustino C, Ribeiro MHL. Sustainable trehalose lipid production by Rhodotorula sp.: a promising bio-based alternative. Bioprocess Biosyst Eng 2024; 47:145-157. [PMID: 38103079 DOI: 10.1007/s00449-023-02949-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023]
Abstract
Global environmental concerns drive research toward the development of new eco-friendly compounds to replace pollutant chemicals. This study focuses on optimizing the production of trehalose lipids (TLs), which are glycolipid biosurfactants (BS) with various applications like antimicrobial or surface tension reduction. New microorganism sources, growth conditions, medium composition, purification conditions, and physicochemical properties of TLs are studied. Addressing a microscale approach, TLs production was successfully achieved using Rhodotorula sp. and Rhodococcus erythropolis to compare, with different media compositions including glucose-based and salt media supplemented with glycerol, glucose, n-hexadecane, n-dodecane. Liquid-liquid extraction using ethyl acetate and methanol was employed for compound extraction, followed by characterization using analytical methods such as Thin layer chromatography (TLC), High performance liquid chromatography (HPLC), and UHPLC. The produced TLs exhibited a minimum surface tension of 47 mN/m and a critical micellar concentration of 4.4 mg/mL. This study also identified Rhodotorula sp. as a new sustainable producer of TLs with improved productivity.
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Affiliation(s)
- Sara Lopes
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Eva Fahr
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - João Costa
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Andreia B Silva
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - M Manuel Lopes
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Célia Faustino
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Maria H L Ribeiro
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
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Shleeva MO, Kondratieva DA, Kaprelyants AS. Bacillus licheniformis: A Producer of Antimicrobial Substances, including Antimycobacterials, Which Are Feasible for Medical Applications. Pharmaceutics 2023; 15:1893. [PMID: 37514078 PMCID: PMC10383908 DOI: 10.3390/pharmaceutics15071893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/02/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
Bacillus licheniformis produces several classes of antimicrobial substances, including bacteriocins, which are peptides or proteins with different structural composition and molecular mass: ribosomally synthesized by bacteria (1.4-20 kDa), non-ribosomally synthesized peptides and cyclic lipopeptides (0.8-42 kDa) and exopolysaccharides (>1000 kDa). Different bacteriocins act against Gram-positive or Gram-negative bacteria, fungal pathogens and amoeba cells. The main mechanisms of bacteriocin lytic activity include interaction of peptides with membranes of target cells resulting in structural alterations, pore-forming, and inhibition of cell wall biosynthesis. DNase and RNase activity for some bacteriocines are also postulated. Non-ribosomal peptides are synthesized by special non-ribosomal multimodular peptide synthetases and contain unnatural amino acids or fatty acids. Their harmful effect is due to their ability to form pores in biological membranes, destabilize lipid packaging, and disrupt the peptidoglycan layer. Lipopeptides, as biosurfactants, are able to destroy bacterial biofilms. Secreted polysaccharides are high molecular weight compounds, composed of repeated units of sugar moieties attached to a carrier lipid. Their antagonistic action was revealed in relation to bacteria, viruses, and fungi. Exopolysaccharides also inhibit the formation of biofilms by pathogenic bacteria and prevent their colonization on various surfaces. However, mechanism of the harmful effect for many secreted antibacterial substances remains unknown. The antimicrobial activity for most substances has been studied in vitro only, but some substances have been characterized in vivo and they have found practical applications in medicine and veterinary. The cyclic lipopeptides that have surfactant properties are used in some industries. In this review, special attention is paid to the antimycobacterials produced by B. licheniformis as a possible approach to combat multidrug-resistant and latent tuberculosis. In particular, licheniformins and bacitracins have shown strong antimycobacterial activity. However, the medical application of some antibacterials with promising in vitro antimycobacterial activity has been limited by their toxicity to animals and humans. As such, similar to the enhancement in the antimycobacterial activity of natural bacteriocins achieved using genetic engineering, the reduction in toxicity using the same approach appears feasible. The unique capability of B. licheniformis to synthesize and produce a range of different antibacterial compounds means that this organism can act as a natural universal vehicle for antibiotic substances in the form of probiotic cultures and strains to combat various types of pathogens, including mycobacteria.
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Affiliation(s)
- Margarita O Shleeva
- A.N. Bach Institute of Biochemistry, Federal Research Centre 'Fundamentals of Biotechnology', Russian Academy of Sciences, 119071 Moscow, Russia
| | - Daria A Kondratieva
- A.N. Bach Institute of Biochemistry, Federal Research Centre 'Fundamentals of Biotechnology', Russian Academy of Sciences, 119071 Moscow, Russia
| | - Arseny S Kaprelyants
- A.N. Bach Institute of Biochemistry, Federal Research Centre 'Fundamentals of Biotechnology', Russian Academy of Sciences, 119071 Moscow, Russia
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Giwa A, Chalermthai B, Shaikh B, Taher H. Green dispersants for oil spill response: A comprehensive review of recent advances. MARINE POLLUTION BULLETIN 2023; 193:115118. [PMID: 37300957 DOI: 10.1016/j.marpolbul.2023.115118] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/19/2023] [Accepted: 05/28/2023] [Indexed: 06/12/2023]
Abstract
Green dispersants are so-called "green" because they are renewable (from bio-based sources), non-volatile (from ionic liquids), or are from naturally available solvents (vegetable oils). In this review, the effectiveness of different types of green dispersants, namely, protein isolates and hydrolysates from fish and marine wastes, biosurfactants from bacterial and fungal strains, vegetable-based oils such as soybean lecithin and castor oils, as well as green solvents like ionic liquids are reviewed. The challenges and opportunities offered by these green dispersants are also elucidated. The effectiveness of these dispersants varies widely and depends on oil type, dispersant hydrophilicity/hydrophobicity, and seawater conditions. However, their advantages lie in their relatively low toxicity and desirable physico-chemical properties, which make them potentially ecofriendly and effective dispersants for future oil spill response.
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Affiliation(s)
- Adewale Giwa
- Chemical and Water Desalination Engineering Program, Mechanical & Nuclear Engineering (MNE) Department, College of Engineering, University of Sharjah, P. O. Box 27272, Sharjah, United Arab Emirates.
| | - Bushra Chalermthai
- Bio-Circular-Green-economy Technology & Engineering Center, BCGeTEC, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Bismah Shaikh
- Sustainable Energy Development Research Group, Sustainable Energy and Power Systems Research Center, Research Institute for Sciences and Engineering, University of Sharjah, P. O. Box 27272, Sharjah, United Arab Emirates
| | - Hanifa Taher
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Research and Innovation Center on CO(2) and H(2) (RICH), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
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Bouassida M, Mnif I, Ghribi D. Enhanced biosurfactant production by Bacillus subtilis SPB1 using developed fed-batch fermentation: effects of glucose levels and feeding systems. Bioprocess Biosyst Eng 2023; 46:555-563. [PMID: 36645491 DOI: 10.1007/s00449-022-02839-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 12/12/2022] [Indexed: 01/17/2023]
Abstract
Biosurfactants stand for highly useful and promising compounds. They basically serve for a variety of applications in multiple industries and aspects of human life. Therefore, it is highly required to improve their production yield especially through the development of new and more efficient fermentation processes. In this aim, batch and fed-batch were studied and compared in terms of their effective biosurfactant production by Bacillus subtilis SPB1. Experiments of fed-batch fermentations were carried out through three different glucose feeding strategies, namely the pulsed, the constant Donespeed and the exponential feeding. The comparison between different fermentation processes revealed that fed-batch process proved to be a more efficient cultivation strategy than the batch process in terms of cell biomass, biosurfactant production and productivity. Among the three different feeding strategies, the exponential feeding process achieved the highest fermentation results of final biosurfactant concentration. The latter increased more than twofolds compared to batch fermentation.
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Affiliation(s)
- Mouna Bouassida
- Laboratoire d'Amélioration Des Plantes Et de Valorisation Des Agro-Ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisia.,Bioréacteur Couplé À Un Ultra Filtra, Ecole Nationale D'Ingénieurs de Sfax, Université de Sfax, Sfax, Tunisia
| | - Ines Mnif
- Laboratoire de Biochimie Et Génie Enzymatique Des Lipases, Ecole Nationale d'Ingénieurs de Sfax, BP W, 3038, Sfax, Tunisia. .,Faculté Des Sciences de Gabes, Université de Gabes, Gabes, Tunisia.
| | - Dhouha Ghribi
- Laboratoire d'Amélioration Des Plantes Et de Valorisation Des Agro-Ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisia.,Institut Supérieur de Biotechnologie de Sfax, Université de Sfax, Sfax, Tunisia
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Mnif I, Bouassida M, Ayed L, Ghribi D. Optimization of textile effluent bacterial treatment and improvement of the process efficiency through SPB1 biosurfactant addition. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:1764-1778. [PMID: 37051796 DOI: 10.2166/wst.2023.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The current work aims to optimize biological textile effluent treatment through the use of newly selected bacterial consortia composed of two strains: Citrobacter sedlakii RI11 and Aeromonas veronii GRI. We assessed the effect of SPB1 biosurfactant addition on color removal (CR). The process was optimized by a Box-Bhenken by examining the effect of pH, consortia density and biosurfactant value on treatment efficiency. Firstly, physicochemical analyses of the studied effluent revealed an alkaline pH along with a high content of suspended materials and large amounts of organic matter. Optimal CR and a chemical oxygen demand abatement of about 94 and 86% were obtained when treating the textile effluent at pH 5 with a total optical density of 0.4 and by incorporating 0.01% SPB1 biosurfactant. Additionally, an abolishment of phytotoxicity was registered after treatment optimization. The evaluations of the action mode of both selected bacteria during textile effluent treatment suggested the occurrence of biodegradation phenomena of dyes through enzymatic activities.
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Affiliation(s)
- Inès Mnif
- Laboratoire de Biochimie et Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax, Sfax BP W 3038, Tunisie E-mail: ; Faculté des Sciences de Gabes, Cité Erriadh 6072 Zrig, Université de Gabès, Gabès, Tunisie
| | - Mouna Bouassida
- Laboratoire d'Amélioration des Plantes et de Valorisation des Agro-ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisie
| | - Lamya Ayed
- Laboratoire d'Analyse, Traitement et Valorisation des Polluants et Produits Environnementaux, Faculté de Pharmacie, Route Avicenne, Monastir 5000, Tunisie
| | - Dhouha Ghribi
- Laboratoire d'Amélioration des Plantes et de Valorisation des Agro-ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisie; Institut Supérieur de Biotechnologie de Sfax, Université de Sfax, Sfax, Tunisie
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Inès M, Mekki S, Ghribi D. Treatment of heavy metals contaminated water: use of B. mojavensis BI2 derived lipopeptide and palm waste flour. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:1083-1094. [PMID: 36358047 DOI: 10.2166/wst.2022.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In the present work, we demonstrated the potential use of newly identified lipopeptides produced by B. mojavensis BI2 along with palm waste flour for the bioremediation of heavy metals contaminated water. The enhancement of radish seeds germination was used to evaluate the treatment efficiency. Firstly, better enhancement in the order of 3.8, 2.52, 1.5 and 5 were recorded respectively for 200 mg/L copper, lead, cobalt and mercury with respective lipopeptide quantities of the order of 200, 300, 200 and 400 mg/L. When studying the sequestration of increasing heavy metals concentration, BI2 lipopeptide was effective. Secondly, a mixed bioprocess was evaluated using palm waste flour as heavy metals sequester and BI2 lipopeptides as improver. Optimal biosorption of lead, copper, cobalt and mercury were obtained with 10 g/l waste, 1,000 mg/l metal and 200 mg/l BI2 lipopeptide for 1 hour. The addition of 200 mg/l BI2 lipopeptide improves the efficiency of the treatment significantly.
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Affiliation(s)
- Mnif Inès
- Laboratoire de Biochimie et Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisie E-mail: ; Laboratoire d'Amélioration des Plantes et de Valorisationdes Agro-ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisie
| | - Salwa Mekki
- Laboratoire d'Amélioration des Plantes et de Valorisationdes Agro-ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisie; Faculté des Sciences de Gabes, Université de Gabes, Gabes, Tunisie
| | - Dhouha Ghribi
- Laboratoire d'Amélioration des Plantes et de Valorisationdes Agro-ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisie; Bioréacteur couplé à un ultra filtra, Ecole Nationale D'Ingénieurs de Sfax, Université de Sfax, Sfax, Tunisie; Institut Supérieur de Biotechnologie de Sfax, Université de Sfax, Sfax, Tunisie
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Mnif I, Bouallegue A, Bouassida M, Ghribi D. Surface properties and heavy metals chelation of lipopeptides biosurfactants produced from date flour by Bacillus subtilis ZNI5: optimized production for application in bioremediation. Bioprocess Biosyst Eng 2021; 45:31-44. [PMID: 34807299 DOI: 10.1007/s00449-021-02635-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 09/03/2021] [Indexed: 11/25/2022]
Abstract
The present study summarizes the valorization of date flour by the production of lipopeptide biosurfactant (BioS) by Bacillus subtilis ZNI5 (MW091416). A Taguchi design permitted the formulation of a medium composed only of 6% date flour and 0.5% yeast extract within 2 days of incubation at 150 rpm with a maximal surface tension (ST) reduction of about 27.8 mN/m. The characterization of the lipopeptide shows a CMC value of about 400 mg/L with a minimal ST of 30 mN/m and an ability to disperse oil to about 80 mm at 800 mg/L. Having reduced phytotoxicity, the ZNI5 BioS and ZNI5 strain were assayed for Copper and Cobalt chelation and biosorption. The improvement of the germination index of radish seeds irrigated by the treated contaminated water showed the great potential application of ZNI5 lipopeptide in the bioremediation of heavy metals.
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Affiliation(s)
- Inès Mnif
- Laboratoire de Biochimie et Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax, BP W 3038, Sfax, Tunisia.
- Laboratoire d'Amélioration des Plantes et de Valorisation des Agro-Ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisia.
- Faculté des Sciences de Gabes, Université de Gabes, Gabès, Tunisia.
| | - Amir Bouallegue
- Laboratoire d'Amélioration des Plantes et de Valorisation des Agro-Ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisia
- Unité de Service Commun Bioréacteur Couplé à un Ultra-filtre, Ecole Nationale D'Ingénieurs de Sfax, Université de Sfax, Sfax, Tunisia
| | - Mouna Bouassida
- Laboratoire d'Amélioration des Plantes et de Valorisation des Agro-Ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisia
- Unité de Service Commun Bioréacteur Couplé à un Ultra-filtre, Ecole Nationale D'Ingénieurs de Sfax, Université de Sfax, Sfax, Tunisia
| | - Dhouha Ghribi
- Laboratoire d'Amélioration des Plantes et de Valorisation des Agro-Ressources, Ecole Nationale d'Ingénieurs de Sfax, Sfax, Tunisia
- Institut Supérieur de Biotechnologie de Sfax, Université de Sfax, Sfax, Tunisia
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Application of Green Surfactants in the Remediation of Soils Contaminated by Hydrocarbons. Processes (Basel) 2021. [DOI: 10.3390/pr9091666] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Among the innovative technologies utilized for the treatment of contaminated soils, the use of green surfactants appears to be a biocompatible, efficient, and attractive alternative, since the cleaning processes that normally use synthetic surfactants as additives cause other problems due to toxicity and the accumulation of by-products. Three green surfactants, i.e., two biobased (biobased 1 and biobased 2) surfactants produced by chemical synthesis and a microbial surfactant produced from the yeast Starmerella bombicola ATCC 22214, were used as soil remediation agents and compared to a synthetic surfactant (Tween 80). The three surfactants were tested for their ability to emulsify, disperse, and remove different hydrophobic contaminants. The biosurfactant, which was able to reduce the water surface tension to 32.30 mN/m at a critical micelle concentration of 0.65 g/L, was then used to prepare a commercial formulation that showed lower toxicity to the tested environmental bioindicators and lower dispersion capacity than the biobased surfactants. All the green surfactants showed great emulsification capacity, especially against motor oil and petroleum. Therefore, their potential to remove motor oil adsorbed on different types of soils (sandy, silty, and clay soil and beach sand) was investigated either in kinetic (flasks) or static (packed columns) experiments. The commercial biosurfactant formulation showed excellent effectiveness in removing motor oil, especially from contaminated sandy soil (80.0 ± 0.46%) and beach sand (65.0 ± 0.14%) under static conditions, while, in the kinetic experiments, the commercial biosurfactant and the biobased 2 surfactant were able to remove motor oil from all the contaminated soils tested more effectively than the biobased 1 surfactant. Finally, the S. bombicola commercial biosurfactant was evaluated as a soil bioremediation agent. In degradation experiments carried out on motor oil-contaminated soils enriched with sugarcane molasses, oil degradation yield in the sandy soil reached almost 90% after 60 days in the presence of the commercial biosurfactant, while it did not exceed 20% in the presence of only S. bombicola cells. These results promise to contribute to the development of green technologies for the treatment of hydrophobic pollutants with economic gains for the oil industries.
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Trindade M, Sithole N, Kubicki S, Thies S, Burger A. Screening Strategies for Biosurfactant Discovery. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2021; 181:17-52. [PMID: 34518910 DOI: 10.1007/10_2021_174] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The isolation and screening of bacteria and fungi for the production of surface-active compounds has been the basis for the majority of the biosurfactants discovered to date. Hence, a wide variety of well-established and relatively simple methods are available for screening, mostly focused on the detection of surface or interfacial activity of the culture supernatant. However, the success of any biodiscovery effort, specifically aiming to access novelty, relies directly on the characteristics being screened for and the uniqueness of the microorganisms being screened. Therefore, given that rather few novel biosurfactant structures have been discovered during the last decade, advanced strategies are now needed to widen access to novel chemistries and properties. In addition, more modern Omics technologies should be considered to the traditional culture-based approaches for biosurfactant discovery. This chapter summarizes the screening methods and strategies typically used for the discovery of biosurfactants and highlights some of the Omics-based approaches that have resulted in the discovery of unique biosurfactants. These studies illustrate the potentially enormous diversity that has yet to be unlocked and how we can begin to tap into these biological resources.
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Affiliation(s)
- Marla Trindade
- Institute for Microbial Biotechnology and Metagenomics, University of the Western Cape, Cape Town, South Africa.
| | - Nombuso Sithole
- Institute for Microbial Biotechnology and Metagenomics, University of the Western Cape, Cape Town, South Africa
| | - Sonja Kubicki
- Institute of Molecular Enzyme Technology, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Stephan Thies
- Institute of Molecular Enzyme Technology, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Anita Burger
- Institute for Microbial Biotechnology and Metagenomics, University of the Western Cape, Cape Town, South Africa
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Valorization of date juice by the production of lipopeptide biosurfactants by a Bacillus mojavensis BI2 strain: bioprocess optimization by response surface methodology and study of surface activities. Bioprocess Biosyst Eng 2021; 44:2315-2330. [PMID: 34241696 DOI: 10.1007/s00449-021-02606-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 06/24/2021] [Indexed: 10/20/2022]
Abstract
Lipopeptides biosurfactants (BioS) are natural surface-active compounds produced by a variety of microorganisms. They have great interest in environmental, biomedical and agro-industrial fields. However their large-scale application and production is limited by the cost of culture media and the low yield of production. Therefore, the improvement of the production yields and the development of efficient and cost-effective bioprocess became of a great interest. In this aim, we applied the response surface method to optimize an economic BioS production by a newly isolated strain Bacillus mojavensis BI2 on date Juice called "Luegmi" as unique carbon and nitrogen source. Using a Box-Bhenken design, we studied the effect of three independent variables on lipopeptide production; Leugmi concentration, Na2HPO4 and incubation time. The results of this study showed that Leugmi concentration at 25%, Na2HPO4 at 0.1% and incubation time of 24 h were optimal conditions for BioS production, with a maximum Surface Tension (ST) decreasing capacity of 55% corresponding to 27 mN/m and an Oil Dispersing Activity (ODA) of 30 cm2 corresponding to a diameter of 6 cm. Preliminary characterization of the BioS produced on Luegmi by UV-Spectra and Thin Layer Chromatography showed its lipopeptide nature. Physic-chemical characterization of the produced lipopeptide on Leugmi showed its great surface activities and stabilities at different pH, temperature and salts concentration. The results of this study suggested that Leugmi, an agricultural byproducts can be used as a low-cost substrate to enhance the yield of lipopeptide BioS with great surface activities for potential environmental application.
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Nitschke M, Marangon CA. Microbial surfactants in nanotechnology: recent trends and applications. Crit Rev Biotechnol 2021; 42:294-310. [PMID: 34167395 DOI: 10.1080/07388551.2021.1933890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The interest in nano-sized materials to develop novel products has increased exponentially in the last decade, together with the search for green methods for their synthesis. An alternative to contribute to a more sustainable approach is the use of microbial-derived molecules to assist nanomaterial synthesis. In this sense, biosurfactants (BSs) have emerged as eco-friendly substitutes in nano-sized materials preparation. The inherent amphiphilic and self-assembly character of BSs associated with their low eco-toxicity, biodegradability, biocompatibility, structural diversity, biological activity, and production from renewable resources are potential advantages over chemically-derived surfactants. In nanotechnology, these versatile molecules play multiple roles. In nanoparticle (NP) synthesis, they act as capping and reducing agents and they also provide self-assembly structures to encapsulation, functionalization, or templates and act as emulsifiers in nanoemulsions. Moreover, BSs can also play as active compounds owing to their intrinsic biological properties. This review presents the recent trends in the development of BS-based nanostructures and their biomedical and environmental applications. Fundamental aspects regarding their antimicrobial and anticancer activities are also discussed.
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Affiliation(s)
- Marcia Nitschke
- Departamento Físico-Química, Instituto de Química de São Carlos (IQSC) - USP, São Carlos, Brazil
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da Silva AF, Banat IM, Giachini AJ, Robl D. Fungal biosurfactants, from nature to biotechnological product: bioprospection, production and potential applications. Bioprocess Biosyst Eng 2021; 44:2003-2034. [PMID: 34131819 PMCID: PMC8205652 DOI: 10.1007/s00449-021-02597-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/01/2021] [Indexed: 11/24/2022]
Abstract
Biosurfactants are in demand by the global market as natural commodities that can be added to commercial products or use in environmental applications. These biomolecules reduce the surface/interfacial tension between fluid phases and exhibit superior stability to chemical surfactants under different physico-chemical conditions. Biotechnological production of biosurfactants is still emerging. Fungi are promising producers of these molecules with unique chemical structures, such as sophorolipids, mannosylerythritol lipids, cellobiose lipids, xylolipids, polyol lipids and hydrophobins. In this review, we aimed to contextualize concepts related to fungal biosurfactant production and its application in industry and the environment. Concepts related to the thermodynamic and physico-chemical properties of biosurfactants are presented, which allows detailed analysis of their structural and application. Promising niches for isolating biosurfactant-producing fungi are presented, as well as screening methodologies are discussed. Finally, strategies related to process parameters and variables, simultaneous production, process optimization through statistical and genetic tools, downstream processing and some aspects of commercial products formulations are presented.
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Affiliation(s)
- André Felipe da Silva
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.,Bioprocess and Biotechnology Engineering Undergraduate Program, Federal University of Tocantins (UFT), Gurupi, TO, Brazil
| | - Ibrahim M Banat
- School of Biomedical Sciences, Faculty of Life and Health Sciences, Ulster University, Coleraine, UK
| | - Admir José Giachini
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Diogo Robl
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.
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Rhamnolipids Application for the Removal of Vanadium from Contaminated Sediment. Curr Microbiol 2021; 78:1949-1960. [PMID: 33811507 DOI: 10.1007/s00284-021-02445-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
The use of biosurfactants in bioremediation of hydrocarbons and in the removal of heavy metals in crude oils is considered an attractive subject. The vanadium pollution in soil and sediments had attracted research interest in exploring eco-friendly methods of remediation. The present study was conducted to evaluate the potential of a biosurfactant to remove vanadium from artificially contaminated sand. The biosurfactant producer's strain selection process was carried out from 23 strains in two steps. In the primary screening, four preliminary tests were carried out: the emulsification index (24 and 72 h), the surface tension, and the rate of bacterial adhesion to hydrocarbons. In the secondary screening, the surface tension and rhamnolipids concentration were determined, also critical micellar concentration and dilution were calculated. The RNA 16s of selected strain was sequence and the strain was identified as Pseudomonas sp. By chromatographic and spectroscopic assays, the structure of the rhamnolipids was determined. The maximal vanadium removal efficiency (85.5%) was achieved with a rhamnolipids' concentration of 240 mg l-1. The vanadium concentration was determined by spectroscopic technique. Rhamnolipids produced by this strain can potentially be used in the removal of vanadium.
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Biochemical tests to determine the biodegradability potential of bacterial strains in PAH polluted sites. World J Microbiol Biotechnol 2020; 36:181. [PMID: 33164140 DOI: 10.1007/s11274-020-02950-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/10/2020] [Indexed: 12/29/2022]
Abstract
Although the use of degrading-bacteria is one of the most efficient methods for the bioremediation of polluted sites, detection, selection and proliferation of the most efficient and competing bacteria is still a challenge. The objective of this multi-stage research was to investigate the effects of the selected bacterial strains on the degradation of anthracene, florentine, naphthalene, and oil, determined by biochemical tests. In the first stage, using the following tests: (a) biosurfactant production (emulsification, oil spreading, number of drops, drop collapse, and surface tension), (b) biofilm production, (c) activity of laccase enzyme, and (d) exopolysaccaride production, the three bacterial strains with the highest degrading potential including Bacillus pumilus, B. aerophilus, and Marinobacter hydrocarbonoclasticus were chosen. In the second stage using the following tests: (a) bacterial growth, (b) laccase enzyme activity, and (c) biosurfactant production (emulsification, oil spreading, and collapse of droplet) the degrading ability of the three selected bacterial strains plus Escherichia coli were compared. Different bacterial strains were able to degrade anthracene, florentine, naphthalene, and oil by the highest rate, three days after inoculation (DAI). However, M. hydrocarbonoclasticus showed the highest rate of florentine degradation. Although with increasing pollutant concentration the degrading potential of the bacterial strains significantly decreased, M. hydrocarbonoclasticus was determined as the most efficient bacterial strain.
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Adetunji AI, Olaniran AO. Production and potential biotechnological applications of microbial surfactants: An overview. Saudi J Biol Sci 2020; 28:669-679. [PMID: 33424354 PMCID: PMC7783833 DOI: 10.1016/j.sjbs.2020.10.058] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 10/15/2020] [Accepted: 10/26/2020] [Indexed: 12/26/2022] Open
Abstract
Microbial surfactants are amphipathic molecules that consist of hydrophilic and hydrophobic domains, which allow partition of two fluid phases of varying degree of polarity. They are classified into two main groups: bioemulsifier and biosurfactant, depending on their molecular weight. Microbial surfactants occur in various categories according to their chemical nature and producing organisms. These biomolecules are produced by diverse groups of microorganisms including fungi, bacteria, and yeasts. Their production is significantly influenced by substrate type, fermentation technology and microbial strains. Owing to inherent multifunctional properties and assorted synthetic aptitude of the microbes, microbial surfactants are mostly preferred than their chemical counterparts for various industrial and biomedical applications including bioremediation, oil recovery; as supplements in laundry formulations and as emulsion-stabilizers in food and cosmetic industries as well as therapeutic agents in medicine. The present review discusses on production of microbial surfactants as promising and alternative broad-functional biomolecules for various biotechnological applications.
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Key Words
- %, Percent
- Akt, Threonine protein kinase
- Bioemulsifiers
- Biosurfactants
- Biotechnological applications
- CMC, Critical micelle concentration
- CTAB, Cethyltrimethylammonium bromide
- Da, Dalton
- E24, Emulsification index
- IC50, Half-maximal inhibitory concentration
- KDa, Kilodalton
- MBC, Minimum bactericidal concentration
- MIC, Minimum inhibitory concentration
- Microbial surfactants
- SACs, Surface active compounds
- ST, Surface tension
- Surface-active compounds
- g/L, Gram per litre
- h, Hour
- mL, Millilitre
- mN/M, Millinewton per metre
- mg/L, Milligram per liter
- mg/mL, Milligram per milliliter
- nm, Nanometre
- sec, Second
- v/v, volume per volume
- µL, Microlitre
- µg/mL, Microgram per milliliter
- µm, Micrometre
- ˚C, Degree Celsius
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Affiliation(s)
- Adegoke Isiaka Adetunji
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville campus), Private Bag X54001, Durban 4000, South Africa
| | - Ademola Olufolahan Olaniran
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville campus), Private Bag X54001, Durban 4000, South Africa
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Ebaid HAR, Abdel-Mageed A, Al-Tamimi JH, Hassan I, Rady AM, El-Newehy MH, Mashaly AM, Abdel-Megeed AAM, Alhazza I, Abdel-Halim ES, Salem AZM. Biosurfactant electrospun nanofibers exhibit minimal side effects on the structure and function of the liver tissue in male rat model. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:40009-40019. [PMID: 32651797 DOI: 10.1007/s11356-020-10077-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Oil spills can result in significant damage to marine estuaries, rivers, lakes, wetlands, and shorelines. Electrospun nanofibers containing biosurfactant (ENFs) can be used to clean oil spills up and protect the environmental biology. Present work aimed to study the side-effects of prepared nanofibers on animal models. Screening of the prepared ECNFs on animals showed that three of them (PVA-5, PEO-1, and PEO-5) are safe to hepatic tissues and liver functions. Furthermore, oxidative stress did not change after using these nanofibers. The PVA-1 nanofibers, however, were found to cause major pathological changes in the liver tissue. In addition, PVA-1 nanofibers were proved to alter the total white blood count and the neutrophil percentages significantly in comparison to the control. In conclusion, PVA-5, PEO-1, and PEO-5 are safe to hepatic tissues and liver functions.
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Affiliation(s)
- Hossam Abd Rabou Ebaid
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia.
- Zoology Department, Faculty of Science, Minia University, Mina, Egypt.
| | - Ahmed Abdel-Mageed
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Jameel Homoud Al-Tamimi
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Iftekhar Hassan
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Ahmed Mostafa Rady
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mohamed Hassan El-Newehy
- Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | | | | | - Ibrahim Alhazza
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
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Fei D, Zhou G, Yu Z, Gang H, Liu J, Yang S, Ye R, Mu B. Low‐Toxic and Nonirritant Biosurfactant Surfactin and its Performances in Detergent Formulations. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12356] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dan Fei
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P.R. China
| | - Guang‐Wei Zhou
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P.R. China
| | - Zhou‐Qiang Yu
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P.R. China
| | - Hong‐Ze Gang
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P.R. China
| | - Jin‐Feng Liu
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P.R. China
| | - Shi‐Zhong Yang
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P.R. China
| | - Ru‐Qiang Ye
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P.R. China
| | - Bo‐Zhong Mu
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P.R. China
- Shanghai Collaborative Innovation Center for Biomanufacturing Technology Shanghai 200237 P.R. China
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Bouassida M, Fourati N, Ghazala I, Ellouze-Chaabouni S, Ghribi D. Potential application of Bacillus subtilis SPB1 biosurfactants in laundry detergent formulations: Compatibility study with detergent ingredients and washing performance. Eng Life Sci 2017; 18:70-77. [PMID: 32624863 DOI: 10.1002/elsc.201700152] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 10/10/2017] [Accepted: 10/11/2017] [Indexed: 11/06/2022] Open
Abstract
Surfactants play a very important role in laundry and household cleaning products ingredients. In this research, the application of lipopeptide biosurfactants, produced by Bacillus subtilis SPB1, in the formulation of a washing powder was investigated. The SPB1 biosurfactant was mixed with sodium tripolyphosphate as a builder and sodium sulfate as filler. The efficiency of the formulated detergent composition with different washing conditions to remove a stain from cotton fabric was examined. The results showed that the formulated detergent was effective in oil removal, with optimal washing conditions of pH, temperature, striate and time of washing system of 7, 65°C, 1000 RPM and 60 min, respectively. A comparative study of different detergent compositions (biosurfactant-based detergent, combined biosurfactant-commercial detergent, and a commercial detergent) for the removal of oil and tea stains, proved that the bio-scouring was more effective (>75%) in terms of the stain removal than the commercial powders (<60%). Moreover, the results demonstrated that the biosurfactant acts additively with a commercial detergent and enhances their performance from 33 to 45% in removing oil stain and from 57 to 64% in removing tea stain. As a conclusion, in addition to the low toxicity and the high biodegradability of the microbial biosurfactants, the results of this study have shown that the future use of this lipopeptide biosurfactant as laundry detergent additive is highly promising.
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Affiliation(s)
- Mouna Bouassida
- Enzyme Bioconversion Unit (UR13ES74) National School of Engineering Sfax University Sfax Tunisia
| | - Nada Fourati
- Enzyme Bioconversion Unit (UR13ES74) National School of Engineering Sfax University Sfax Tunisia
| | - Imen Ghazala
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20) National School of Engineering Sfax University Sfax Tunisia
| | - Semia Ellouze-Chaabouni
- Enzyme Bioconversion Unit (UR13ES74) National School of Engineering Sfax University Sfax Tunisia.,Common Service Unit of Bioreactor coupled with an ultrafilter, National School of Engineering Sfax University Sfax Tunisia
| | - Dhouha Ghribi
- Higher Institute of Biotechnology of Sfax Sfax University Sfax Tunisia
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YUDONO BAMBANG, SAID MUHAMMAD, ESTUNINGSIH SRIPERTIWI, KARIMA AULIA. Oil Recovery Test Using Bio surfactant of Halo tolerant Bacteria Brevundimonas diminuta and Bhurkholderia glumae at variation of NaCl Salt Concentrations. MICROBIOLOGY INDONESIA 2017. [DOI: 10.5454/mi.11.3.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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21
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Rongsayamanont W, Soonglerdsongpha S, Khondee N, Pinyakong O, Tongcumpou C, Sabatini DA, Luepromchai E. Formulation of crude oil spill dispersants based on the HLD concept and using a lipopeptide biosurfactant. JOURNAL OF HAZARDOUS MATERIALS 2017; 334:168-177. [PMID: 28411538 DOI: 10.1016/j.jhazmat.2017.04.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 04/01/2017] [Accepted: 04/03/2017] [Indexed: 06/07/2023]
Abstract
Solvent-free dispersants for crude oil spills were formulated based on the hydrophilic-lipophilic deviation (HLD) concept and using lipopeptides from Bacillus sp. GY19. The lipopeptides were recovered and concentrated from cell-free broth by foam fractionation and freeze-drying. They had good surface activity under varying temperatures, pH and NaCl levels. Moreover, the lipopeptides had low toxicity to copepods (LC50 1174mg/L) and whiteleg shrimp (LC50 1050mg/L). The characteristic curvature (Cc) of the lipopeptides showed that they were more hydrophobic (Cc 4.93) than sodium dihexyl sulfosuccinate (SDHS, Cc -0.92). The HLD equation was used to calculate the lipopeptide and the SDHS fractions in the dispersant formulations according to the equivalent alkane carbon number (EACN) of hydrocarbons and seawater salinity. The molar fraction of lipopeptides increased with increasing EACN. The lipopeptide-SDHS mixtures formed microemulsion Type III with specific hydrocarbons and crude oils. Oil displacement and baffled flask tests showed that the formulations reduced the interfacial tension and solubilized crude oil in the water column at higher efficiency than commercial dispersants or lipopeptides alone. In summary, the effectiveness of the lipopeptide-based dispersant corresponded to the optimal HLD.
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Affiliation(s)
- Witchaya Rongsayamanont
- International Program of Hazardous Substance and Environmental Management, Graduate School, Chulalongkorn University, Thailand; Research Program on Remediation Technologies for Petroleum Contamination, Center of Excellence on Hazardous Substance Management, Chulalongkorn University, Thailand
| | - Suwat Soonglerdsongpha
- Environmental Technology Research Department, PTT Research and Technology Institute, Thailand
| | - Nichakorn Khondee
- Bioremediation Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Thailand; Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Thailand
| | - Onruthai Pinyakong
- Bioremediation Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Thailand; Research Program on Remediation Technologies for Petroleum Contamination, Center of Excellence on Hazardous Substance Management, Chulalongkorn University, Thailand
| | - Chantra Tongcumpou
- Environmental Research Institute, Chulalongkorn University, Thailand; Research Program on Remediation Technologies for Petroleum Contamination, Center of Excellence on Hazardous Substance Management, Chulalongkorn University, Thailand
| | - David A Sabatini
- School of Civil Engineering and Environmental Science, University of Oklahoma, USA
| | - Ekawan Luepromchai
- Bioremediation Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Thailand; Research Program on Remediation Technologies for Petroleum Contamination, Center of Excellence on Hazardous Substance Management, Chulalongkorn University, Thailand.
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De Oliveira DWF, Cara AB, Lechuga-Villena M, García-Román M, Melo VMM, Gonçalves LRB, Vaz DA. Aquatic toxicity and biodegradability of a surfactant produced by Bacillus subtilis ICA56. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2017; 52:174-181. [PMID: 27791474 DOI: 10.1080/10934529.2016.1240491] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, the environmental compatibility of a biosurfactant produced by a Bacillus subtilis strain isolated from the soil of a Brazilian mangrove was investigated. The biosurfactant, identified as surfactin, is able to reduce surface tension (ST) to 31.5 ± 0.1 mN m-1 and exhibits a lowcritical micelle concentration (CMC) value (0.015 ± 0.003 g L-1). The highest crude biosurfactant concentration (224.3 ± 1.9 mg L-1) was reached at 72 h of fermentation. Acute toxicity tests, carried out with Daphnia magna, Vibrio fischeri and Selenastrum capricornutum indicated that the toxicity of the biosurfactant is lower than that of its chemically derived counterparts. The results of the biodegradability tests demonstrated that the crude surfactin extract was degraded by both Pseudomonas putida and a mixed population from a sewage-treatment plant, in both cases the biodegradation efficiency being dependent on the initial concentration of the biosurfactant. Finally, as the biodegradation percentages obtained fall within the acceptance limits established by the Organization for Economic Co-operation and Development (Guidelines for Testing of Chemicals, OECD 301E), crude surfactin can be classified as a "readily" biodegradable compound.
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Affiliation(s)
- Darlane W F De Oliveira
- a Departamento de Engenharia Química , Universidade Federal do Ceará , Fortaleza , CE , Brazil
| | - Alejandro B Cara
- b Department of Chemical Engineering , Faculty of Sciences, University of Granada , Granada , Spain
| | - Manuela Lechuga-Villena
- b Department of Chemical Engineering , Faculty of Sciences, University of Granada , Granada , Spain
| | - Miguel García-Román
- b Department of Chemical Engineering , Faculty of Sciences, University of Granada , Granada , Spain
| | - Vania M M Melo
- c Departamento de Biologia , LemBiotech, Laboratório de Ecologia Microbiana e Biotecnologia, Universidade Federal do Ceará , Fortaleza , CE , Brazil
| | - Luciana R B Gonçalves
- a Departamento de Engenharia Química , Universidade Federal do Ceará , Fortaleza , CE , Brazil
| | - Deisi A Vaz
- b Department of Chemical Engineering , Faculty of Sciences, University of Granada , Granada , Spain
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Sunde M, Pham CLL, Kwan AH. Molecular Characteristics and Biological Functions of Surface-Active and Surfactant Proteins. Annu Rev Biochem 2017; 86:585-608. [PMID: 28125290 DOI: 10.1146/annurev-biochem-061516-044847] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Many critical biological processes take place at hydrophobic:hydrophilic interfaces, and a wide range of organisms produce surface-active proteins and peptides that reduce surface and interfacial tension and mediate growth and development at these boundaries. Microorganisms produce both small lipid-associated peptides and amphipathic proteins that allow growth across water:air boundaries, attachment to surfaces, predation, and improved bioavailability of hydrophobic substrates. Higher-order organisms produce surface-active proteins with a wide variety of functions, including the provision of protective foam environments for vulnerable reproductive stages, evaporative cooling, and gas exchange across airway membranes. In general, the biological functions supported by these diverse polypeptides require them to have an amphipathic nature, and this is achieved by a diverse range of molecular structures, with some proteins undergoing significant conformational change or intermolecular association to generate the structures that are surface active.
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Affiliation(s)
- Margaret Sunde
- Discipline of Pharmacology, School of Medical Sciences and Australian Institute for Nanoscale Science and Technology, University of Sydney, NSW 2006, Australia; ,
| | - Chi L L Pham
- Discipline of Pharmacology, School of Medical Sciences and Australian Institute for Nanoscale Science and Technology, University of Sydney, NSW 2006, Australia; ,
| | - Ann H Kwan
- School of Life and Environmental Sciences and Australian Institute for Nanoscale Science and Technology, University of Sydney, NSW 2006, Australia;
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24
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Mohanram R, Jagtap C, Kumar P. Isolation, screening, and characterization of surface-active agent-producing, oil-degrading marine bacteria of Mumbai Harbor. MARINE POLLUTION BULLETIN 2016; 105:131-138. [PMID: 26912197 DOI: 10.1016/j.marpolbul.2016.02.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 01/27/2016] [Accepted: 02/15/2016] [Indexed: 06/05/2023]
Abstract
Diverse marine bacterial species predominantly found in oil-polluted seawater produce diverse surface-active agents. Surface-active agents produced by bacteria are classified into two groups based on their molecular weights, namely biosurfactants and bioemulsifiers. In this study, surface-active agent-producing, oil-degrading marine bacteria were isolated using a modified Bushnell-Haas medium with high-speed diesel as a carbon source from three oil-polluted sites of Mumbai Harbor. Surface-active agent-producing bacterial strains were screened using nine widely used methods. The nineteen bacterial strains showed positive results for more than four surface-active agent screening methods; further, these strains were characterized using biochemical and nucleic acid sequencing methods. Based on the results, the organisms belonged to the genera Acinetobacter, Alcanivorax, Bacillus, Comamonas, Chryseomicrobium, Halomonas, Marinobacter, Nesterenkonia, Pseudomonas, and Serratia. The present study confirmed the prevalence of surface-active agent-producing bacteria in the oil-polluted waters of Mumbai Harbor.
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Affiliation(s)
- Rajamani Mohanram
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
| | - Chandrakant Jagtap
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
| | - Pradeep Kumar
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
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25
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Biosurfactants: Multifunctional Biomolecules of the 21st Century. Int J Mol Sci 2016; 17:401. [PMID: 26999123 PMCID: PMC4813256 DOI: 10.3390/ijms17030401] [Citation(s) in RCA: 387] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/03/2016] [Accepted: 03/11/2016] [Indexed: 01/11/2023] Open
Abstract
In the era of global industrialisation, the exploration of natural resources has served as a source of experimentation for science and advanced technologies, giving rise to the manufacturing of products with high aggregate value in the world market, such as biosurfactants. Biosurfactants are amphiphilic microbial molecules with hydrophilic and hydrophobic moieties that partition at liquid/liquid, liquid/gas or liquid/solid interfaces. Such characteristics allow these biomolecules to play a key role in emulsification, foam formation, detergency and dispersal, which are desirable qualities in different industries. Biosurfactant production is considered one of the key technologies for development in the 21st century. Besides exerting a strong positive impact on the main global problems, biosurfactant production has considerable importance to the implantation of sustainable industrial processes, such as the use of renewable resources and "green" products. Biodegradability and low toxicity have led to the intensification of scientific studies on a wide range of industrial applications for biosurfactants in the field of bioremediation as well as the petroleum, food processing, health, chemical, agricultural and cosmetic industries. In this paper, we offer an extensive review regarding knowledge accumulated over the years and advances achieved in the incorporation of biomolecules in different industries.
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