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Dini S, Oz F, Bekhit AEDA, Carne A, Agyei D. Production, characterization, and potential applications of lipopeptides in food systems: A comprehensive review. Compr Rev Food Sci Food Saf 2024; 23:e13394. [PMID: 38925624 DOI: 10.1111/1541-4337.13394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024]
Abstract
Lipopeptides are a class of lipid-peptide-conjugated compounds with differing structural features. This structural diversity is responsible for their diverse range of biological properties, including antimicrobial, antioxidant, and anti-inflammatory activities. Lipopeptides have been attracting the attention of food scientists due to their potential as food additives and preservatives. This review provides a comprehensive overview of lipopeptides, their production, structural characteristics, and functional properties. First, the classes, chemical features, structure-activity relationships, and sources of lipopeptides are summarized. Then, the gene expression and biosynthesis of lipopeptides in microbial cell factories and strategies to optimize lipopeptide production are discussed. In addition, the main methods of purification and characterization of lipopeptides have been described. Finally, some biological activities of the lipopeptides, especially those relevant to food systems along with their mechanism of action, are critically examined.
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Affiliation(s)
- Salome Dini
- Department of Food Science, University of Otago, Dunedin, New Zealand
| | - Fatih Oz
- Department of Food Engineering, Agriculture Faculty, Atatürk University, Erzurum, Turkey
| | | | - Alan Carne
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Dominic Agyei
- Department of Food Science, University of Otago, Dunedin, New Zealand
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2
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Dini S, Bekhit AEDA, Roohinejad S, Vale JM, Agyei D. The Physicochemical and Functional Properties of Biosurfactants: A Review. Molecules 2024; 29:2544. [PMID: 38893420 PMCID: PMC11173842 DOI: 10.3390/molecules29112544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/20/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Surfactants, also known as surface-active agents, have emerged as an important class of compounds with a wide range of applications. However, the use of chemical-derived surfactants must be restricted due to their potential adverse impact on the ecosystem and the health of human and other living organisms. In the past few years, there has been a growing inclination towards natural-derived alternatives, particularly microbial surfactants, as substitutes for synthetic or chemical-based counterparts. Microbial biosurfactants are abundantly found in bacterial species, predominantly Bacillus spp. and Pseudomonas spp. The chemical structures of biosurfactants involve the complexation of lipids with carbohydrates (glycolipoproteins and glycolipids), peptides (lipopeptides), and phosphates (phospholipids). Lipopeptides, in particular, have been the subject of extensive research due to their versatile properties, including emulsifying, antimicrobial, anticancer, and anti-inflammatory properties. This review provides an update on research progress in the classification of surfactants. Furthermore, it explores various bacterial biosurfactants and their functionalities, along with their advantages over synthetic surfactants. Finally, the potential applications of these biosurfactants in many industries and insights into future research directions are discussed.
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Affiliation(s)
- Salome Dini
- Department of Food Science, University of Otago, Dunedin 9054, New Zealand; (S.D.); (A.E.-D.A.B.)
| | - Alaa El-Din A. Bekhit
- Department of Food Science, University of Otago, Dunedin 9054, New Zealand; (S.D.); (A.E.-D.A.B.)
| | - Shahin Roohinejad
- Research and Development Division, Zoom Essence Inc., 1131 Victory Place, Hebron, KY 41048, USA (J.M.V.)
| | - Jim M. Vale
- Research and Development Division, Zoom Essence Inc., 1131 Victory Place, Hebron, KY 41048, USA (J.M.V.)
| | - Dominic Agyei
- Department of Food Science, University of Otago, Dunedin 9054, New Zealand; (S.D.); (A.E.-D.A.B.)
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Zhou L, Höfte M, Hennessy RC. Does regulation hold the key to optimizing lipopeptide production in Pseudomonas for biotechnology? Front Bioeng Biotechnol 2024; 12:1363183. [PMID: 38476965 PMCID: PMC10928948 DOI: 10.3389/fbioe.2024.1363183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/12/2024] [Indexed: 03/14/2024] Open
Abstract
Lipopeptides (LPs) produced by Pseudomonas spp. are specialized metabolites with diverse structures and functions, including powerful biosurfactant and antimicrobial properties. Despite their enormous potential in environmental and industrial biotechnology, low yield and high production cost limit their practical use. While genome mining and functional genomics have identified a multitude of LP biosynthetic gene clusters, the regulatory mechanisms underlying their biosynthesis remain poorly understood. We propose that regulation holds the key to unlocking LP production in Pseudomonas for biotechnology. In this review, we summarize the structure and function of Pseudomonas-derived LPs and describe the molecular basis for their biosynthesis and regulation. We examine the global and specific regulator-driven mechanisms controlling LP synthesis including the influence of environmental signals. Understanding LP regulation is key to modulating production of these valuable compounds, both quantitatively and qualitatively, for industrial and environmental biotechnology.
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Affiliation(s)
- Lu Zhou
- Laboratory of Phytopathology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Monica Höfte
- Laboratory of Phytopathology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Rosanna C. Hennessy
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
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Tchakouani GFY, Mouafo HT, Nguimbou RM, Nganou ND, Mbawala A. Antibacterial activity of bioemulsifiers/biosurfactants produced by Levilactobacillus brevisS4 and Lactiplantibacillus plantarumS5 and their utilization to enhance the stability of cold emulsions of milk chocolate drinks. Food Sci Nutr 2024; 12:141-153. [PMID: 38268904 PMCID: PMC10804106 DOI: 10.1002/fsn3.3740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 01/26/2024] Open
Abstract
Chocolate milk drink, one of the most popular and widely consumed milk products among the population, independent of their age, has as its main challenge the problem of its physical instability. The aim of this study was to assess the stabilizing effect of bioemulsifiers/biosurfactants (BE/BS) from two lactobacilli strains in a cold chocolate milk drink. The strains Levilactobacillus brevis S4 and Lactiplantibacillus plantarum S5 isolated from pendidam were screened for their ability to produce BE/BS. The produced BE/BS were characterized, their antimicrobial activities were assessed, and their ability to stabilize cold chocolate milk drinks was determined. The results obtained showed BE/BS yields of 3.48 and 4.37 g/L from L. brevis S4 and L. plantarum S5, respectively. These BE/BS showed emulsifying and surface activities that remained stable after treatment at different temperatures, pH, and salinity. The emulsions formed using BE/BS were stable for 72 h at room temperature (25 ± 1°C). The BE/BS exhibited antimicrobial activity against Staphylococcus aureus S1 and Escherichia coli E1. When applied to cold chocolate milk drinks at 0.2% (w/v), the BE/BS from L. brevis S4 and L. plantarum S5 showed interesting solubility indexes and water absorption capacities, which led to the successful stabilization of the drinks. The results of this study demonstrate the stabilizer potential of BE/BS from L. brevis S4 and L. plantarum S5 and suggest their use in the dairy and food industries.
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Affiliation(s)
| | - Hippolyte Tene Mouafo
- Centre for Food, Food Security and Nutrition ResearchInstitute of Medical Research and Medicinal Plant StudiesYaoundéCameroon
| | - Richard Marcel Nguimbou
- Department of Food Sciences and Nutrition, National School of Agro‐Industrial SciencesUniversity of NgaoundéréNgaoundéréCameroon
| | - Nadège Donkeng Nganou
- Department of Food Engineering and Quality ControlUniversity Institute of Technology, University of NgaoundéréNgaoundéréCameroon
| | - Augustin Mbawala
- Department of Food Sciences and Nutrition, National School of Agro‐Industrial SciencesUniversity of NgaoundéréNgaoundéréCameroon
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Bian Z, Song Z, Zhi Z, Zhang X, Qu Y, Chai R, Wu H, Wu Y. Pore- and Core-Scale Recovery Performance of Consortium Bacteria from Low-Permeability Reservoir. Microorganisms 2023; 11:2738. [PMID: 38004748 PMCID: PMC10673141 DOI: 10.3390/microorganisms11112738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Performance evaluation of microorganisms that have emulsifying and degrading effects on crude oil has been extensively conducted in the laboratory. However, the ultimate goal of microbial enhanced oil recovery is field application, so the pilot simulation experiments are crucial. In this study, a micro-visualization model and the real cores were chosen to investigate the actual recovery efficiency and the mechanism of the consortium bacteria B-ALL, which has been proven to have good emulsification and degradation effects in lab studies in porous media. At the same time, the cast thin sections and rate-controlled porosimetry were combined to analyze the pore throat structure of the displacement core. It was found that the recovery efficiency was positively correlated with the microbial injection volume as well as the incubation time. For the microscopic model with high pores and high permeability, the efficiency of secondary water flooding can be increased by 44.77% after six days of incubation with two pore volume microbes. For the real tight cores, the maximum secondary water flooding efficiency under the same condition was 6.98%. Through visual modeling, microorganisms increase the oil washing efficiency mainly by emulsification and changing the wettability. The generated oil droplets will play a role in plugging and improving the wave efficiency. However, tight reservoirs have the characteristics of large pores and small throats, and curved and necking throats are developed, greatly reducing permeability. The microbial recovery efficiency was lower under shorter cultivation times. This study provides a practical basis for the application of consortium bacteria in tight oil fields to enhance recovery.
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Affiliation(s)
- Ziwei Bian
- Department of Geology, State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China; (Z.B.); (Z.Z.); (X.Z.); (Y.Q.); (R.C.)
| | - Zhiyong Song
- School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China;
| | - Zena Zhi
- Department of Geology, State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China; (Z.B.); (Z.Z.); (X.Z.); (Y.Q.); (R.C.)
| | - Xiangchun Zhang
- Department of Geology, State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China; (Z.B.); (Z.Z.); (X.Z.); (Y.Q.); (R.C.)
| | - Yiqian Qu
- Department of Geology, State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China; (Z.B.); (Z.Z.); (X.Z.); (Y.Q.); (R.C.)
| | - Ruiyang Chai
- Department of Geology, State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China; (Z.B.); (Z.Z.); (X.Z.); (Y.Q.); (R.C.)
| | - Hanning Wu
- Department of Geology, State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China; (Z.B.); (Z.Z.); (X.Z.); (Y.Q.); (R.C.)
| | - Yifei Wu
- College of Food Science and Technology, Northwest University, Xi’an 710069, China
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Sharma N, Lavania M, Lal B. Biosurfactant: an emerging tool for the petroleum industries. Front Microbiol 2023; 14:1254557. [PMID: 37771700 PMCID: PMC10522915 DOI: 10.3389/fmicb.2023.1254557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/28/2023] [Indexed: 09/30/2023] Open
Abstract
The petroleum sector is essential to supplying the world's energy demand, but it also involves numerous environmental problems, such as soil pollution and oil spills. The review explores biosurfactants' potential as a new tool for the petroleum sector. Comparing biosurfactants to their chemical equivalents reveals several advantages. They are ecologically sustainable solutions since they are renewable, nontoxic, and biodegradable. Biosurfactants are used in a variety of ways in the petroleum sector. They can improve the mobilization and extraction of trapped hydrocarbons during oil recovery procedures. By encouraging the dispersion and solubilization of hydrocarbons, biosurfactants also assist in the cleanup of oil spills and polluted locations by accelerating their breakdown by local microorganisms. The review gives insights into alternative methods for the petroleum industry that are more viable and cost-effective.
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Affiliation(s)
| | - Meeta Lavania
- Microbial Biotechnology, Environmental and Industrial Biotechnology Division, The Energy and Resources Institute (TERI), New Delhi, India
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Bochynek M, Lewińska A, Witwicki M, Dębczak A, Łukaszewicz M. Formation and structural features of micelles formed by surfactin homologues. Front Bioeng Biotechnol 2023; 11:1211319. [PMID: 37485321 PMCID: PMC10360134 DOI: 10.3389/fbioe.2023.1211319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/22/2023] [Indexed: 07/25/2023] Open
Abstract
Surfactin, a group of cyclic lipopeptides produced by Bacillus subtilis, possesses surfactant properties and is a promising natural and biologically active compound. In this study, we present a comprehensive characterization of surfactin, including its production, chromatographic separation into pure homologues (C12, C13, C14, C15), and investigation of their physicochemical properties. We determined adsorption isotherms and interpreted them using the Gibbs adsorption equation, revealing that the C15 homologue exhibited the strongest surface tension reduction (27.5 mN/m), while surface activity decreased with decreasing carbon chain length (32.2 mN/m for C12). Critical micelle concentration (CMC) were also determined, showing a decrease in CMC values from 0.35 mM for C12 to 0.08 mM for C15. We employed dynamic light scattering (DLS), transmission electron microscopy (TEM), and density functional theory (DFT) calculations to estimate the size of micellar aggregates, which increased with longer carbon chains, ranging from 4.7 nm for C12 to 5.7 nm for C15. Furthermore, aggregation numbers were determined, revealing the number of molecules in a micelle. Contact angles and emulsification indexes (E24) were measured to assess the functional properties of the homologues, showing that wettability increased with chain length up to C14, which is intriguing as C14 is the most abundant homologue. Our findings highlight the relationship between the structure and properties of surfactin, providing valuable insights for understanding its biological significance and potential applications in various industries. Moreover, the methodology developed in this study can be readily applied to other cyclic lipopeptides, facilitating a better understanding of their structure-properties relationship.
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Affiliation(s)
- Michał Bochynek
- Department of Biotransformation, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
- InventionBio S.A., Bydgoszcz, Poland
| | - Agnieszka Lewińska
- Faculty of Chemistry, University of Wroclaw, Wroclaw, Poland
- OnlyBio S.A., Bydgoszcz, Poland
| | - Maciej Witwicki
- Faculty of Chemistry, University of Wroclaw, Wroclaw, Poland
| | - Agnieszka Dębczak
- Łukasiewicz Research Network—New Chemical Syntheses Institute, Puławy, Poland
| | - Marcin Łukaszewicz
- Department of Biotransformation, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
- InventionBio S.A., Bydgoszcz, Poland
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Patowary R, Devi A, Mukherjee AK. Advanced bioremediation by an amalgamation of nanotechnology and modern artificial intelligence for efficient restoration of crude petroleum oil-contaminated sites: a prospective study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:74459-74484. [PMID: 37219770 PMCID: PMC10204040 DOI: 10.1007/s11356-023-27698-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/11/2023] [Indexed: 05/24/2023]
Abstract
Crude petroleum oil spillage is becoming a global concern for environmental pollution and poses a severe threat to flora and fauna. Bioremediation is considered a clean, eco-friendly, and cost-effective process to achieve success among the several technologies adopted to mitigate fossil fuel pollution. However, due to the hydrophobic and recalcitrant nature of the oily components, they are not readily bioavailable to the biological components for the remediation process. In the last decade, nanoparticle-based restoration of oil-contaminated, owing to several attractive properties, has gained significant momentum. Thus, intertwining nano- and bioremediation can lead to a suitable technology termed 'nanobioremediation' expected to nullify bioremediation's drawbacks. Furthermore, artificial intelligence (AI), an advanced and sophisticated technique that utilizes digital brains or software to perform different tasks, may radically transfer the bioremediation process to develop an efficient, faster, robust, and more accurate method for rehabilitating oil-contaminated systems. The present review outlines the critical issues associated with the conventional bioremediation process. It analyses the significance of the nanobioremediation process in combination with AI to overcome such drawbacks of a traditional approach for efficiently remedying crude petroleum oil-contaminated sites.
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Affiliation(s)
- Rupshikha Patowary
- Environmental Chemistry Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati, 781 035, Assam, India
| | - Arundhuti Devi
- Environmental Chemistry Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati, 781 035, Assam, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati, 781 035, Assam, India.
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Luo K, Chen Y, Qian X, Zhong H, Onchari MM, Liu X, Tian B, Zang S, Yin X, Chen X, Zheng H, Wang X, Luo C. Enhancing surfactin production in B. velezensis Bs916 combined cumulative mutagenesis and expression key enzymes. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12590-5. [PMID: 37231158 DOI: 10.1007/s00253-023-12590-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/27/2023]
Abstract
Surfactin is a lipopeptide which has attracted massive attention due to its versatile bioactive properties, although it has less commercial application due to its low yield in wild strains. The B. velezensis Bs916 has enable commercial production of surfactin due to its outstanding capacity to synthesize lipopeptides and amenable to genetically engineering. In this study, 20 derivatives with high surfactin production were obtained firstly by transposon mutagenesis and knockout techniques, and the surfactin yield of the derivative H5 (△GltB) was increased approximately 7-folds, reaching to 1.48 g/L. The molecular mechanism of high yielding surfactin in △GltB was investigated by the transcriptomic and KEGG pathway analysis. The results indicated that △GltB enhanced its ability to synthesize surfactin mainly by promoting transcription of the srfA gene cluster and inhibiting degradation of some key precursors such as fatty acid. Secondly, we obtained a triple mutant derivative BsC3 by cumulative mutagenesis of the negative genes GltB, RapF, and SerA, and it could increase the surfactin titer by twofold, reaching to 2.98 g/L. Thirdly, we achieved overexpression of two key rate-limiting enzyme genes, YbdT, and srfAD, and the derivative BsC5 which further increased the surfactin titer by 1.3-fold, reaching to 3.79 g/L. Finally, the yield of surfactin by derivatives was significantly increased under the optimal medium, particularly the BsC5 increased the surfactin titer to 8.37 g/L. To the best of our knowledge, this is one of the highest yields that have been reported. Our work may pave way for large scale production of surfactin by B. velezensis Bs916. KEY POINTS: • Elucidation of the molecular mechanism of surfactin high-yielding transposon mutant. • Genetically engineering of B. velezensis Bs916 surfactin titer to 8.37 g/L for large scale preparation.
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Affiliation(s)
- Kecheng Luo
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yuewen Chen
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiangyang Qian
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Haijing Zhong
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China
| | - M M Onchari
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xuehui Liu
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Baoxia Tian
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Shanshan Zang
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiulian Yin
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Xixu Chen
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Hanchi Zheng
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiaohua Wang
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China.
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Chuping Luo
- Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian, 223003, China.
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
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Sharma N, Lavania M, Kukreti V, Rana DP, Lal B. Enhanced Oil Recovery Using Indigenous Microbiome of High Temperature Oil Reservoirs. Curr Microbiol 2023; 80:179. [PMID: 37039908 DOI: 10.1007/s00284-023-03272-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/15/2023] [Indexed: 04/12/2023]
Abstract
Crude oil is a primary energy source used for economic expansion across the world. Secondary recovery processes employed by industries to recover oil from oil wells leave behind 70% of the oil trapped in marginal and deleted zones of reservoirs. To recover the oil from depleted zones, microbial enhanced oil recovery (MEOR) tertiary processes were introduced, which involve the production of metabolites from the indigenous microbiome. In this study, the indigenous microbiota was identified as Marinobacterium sp., Silvanigrella sp., Petrothermobacter sp., Pseudomonas sp., Bacillus sp., Nitrincola sp., Halomonas sp., Uncultured Roseovarius sp., and Phaeobacter. Further, the secondary metabolites such as volatile fatty acids (ethanol, acetone, and acetate), biomass, gases (CO2, CH4), and biosurfactants were estimated through gas chromatography and FTIR spectroscopy. Once stable microbial growth was attained in the baltch media, it was optimized through response surface methodology (RSM) to minimize the process cost. The optimized media with 9 g/L of molasses, 1.75 g/L of sodium bicarbonate, and 1.25 g/L of ammonium chloride showed a significant impact on metabolite production. Additionally, core flood studies to simulate field studies were performed that represented that TeriK-1 brought a significant increment of 18.9%, which makes it suitable for MEOR field implementation. This study is one of its kind where the indigenous thermophilic sp. was successfully established and is capable of producing the secondary metabolites that aid in the MEOR process.
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Affiliation(s)
- Neha Sharma
- Microbial Biotechnology, Environmental and Industrial Biotechnology Division, The Energy and Resources Institute (TERI), Darbari Seth Block, India Habitat Centre, Lodi Road, , New Delhi, 110003, India
| | - Meeta Lavania
- Microbial Biotechnology, Environmental and Industrial Biotechnology Division, The Energy and Resources Institute (TERI), Darbari Seth Block, India Habitat Centre, Lodi Road, , New Delhi, 110003, India.
| | - Vipin Kukreti
- Institute of Reservoir Studies, Oil and Natural Gas Corporation Limited, Ahmadabad, India
| | - Dolly Pal Rana
- Institute of Reservoir Studies, Oil and Natural Gas Corporation Limited, Ahmadabad, India
| | - Banwari Lal
- Microbial Biotechnology, Environmental and Industrial Biotechnology Division, The Energy and Resources Institute (TERI), Darbari Seth Block, India Habitat Centre, Lodi Road, , New Delhi, 110003, India
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Papadopoulou EA, Angelis A, Skaltsounis AL, Aliferis KA. GC/EI/MS and 1H NMR Metabolomics Reveal the Effect of an Olive Tree Endophytic Bacillus sp. Lipopeptide Extract on the Metabolism of Colletotrichum acutatum. Metabolites 2023; 13:metabo13040462. [PMID: 37110121 PMCID: PMC10142168 DOI: 10.3390/metabo13040462] [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: 03/02/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 04/29/2023] Open
Abstract
The transition to the Green Deal era requires the discovery of alternative sources of bioactivity and an in-depth understanding of their toxicity to target and non-target organisms. Endophytes have recently emerged as a source of bioactivity of high potential for applications in plant protection, used either per se as biological control agents or their metabolites as bioactive compounds. The olive tree endophytic isolate Bacillus sp. PTA13 produces an array of bioactive lipopeptides (LPs), which additionally exhibit reduced phytotoxicity, features that make them candidates for further research focusing on olive tree plant protection. Here, GC/EI/MS and 1H NMR metabolomics were employed to study the toxicity of a Bacillus sp. PTA13 LP extract on the olive tree pathogen Colletotrichum acutatum, which causes the devastating disease olive anthracnose. The discovery of resistant isolates of the pathogen to the applied fungicides makes the research on the development of improved sources of bioactivity of paramount importance. Analyses revealed that the applied extract affects the metabolism of the fungus by interfering with the biosynthesis of various metabolites and its energy production. LPs had a great impact on the aromatic amino acid metabolism, the energy equilibrium of the fungus and its fatty acid content. Additionally, the applied LPs affected the levels of pathogenesis-related metabolites, a finding that supports their potential for further research as plant protection agents.
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Affiliation(s)
- Evgenia-Anna Papadopoulou
- Laboratory of Pesticide Science, Department of Crop Science, Agricultural University of Athens, 118 55 Athens, Greece
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, University of Athens, 157 71 Athens, Greece
| | - Apostolis Angelis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, University of Athens, 157 71 Athens, Greece
| | - Alexios-Leandros Skaltsounis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, University of Athens, 157 71 Athens, Greece
| | - Konstantinos A Aliferis
- Laboratory of Pesticide Science, Department of Crop Science, Agricultural University of Athens, 118 55 Athens, Greece
- Department of Plant Science, Macdonald Campus, McGill University, Montreal, QC H9X 3V9, Canada
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Czinkóczky R, Sakiyo J, Eszterbauer E, Németh Á. Prediction of surfactin fermentation with Bacillus subtilis DSM10 by response surface methodology optimized artificial neural network. Cell Biochem Funct 2023; 41:234-242. [PMID: 36655349 DOI: 10.1002/cbf.3776] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/29/2022] [Accepted: 01/06/2023] [Indexed: 01/20/2023]
Abstract
Biosurfactants produced by Bacillus species are an emerging group of surface-active molecules. They have excellent surface tension reducer and high emulsifier properties. Generally, the biosurfactant fermentation leads to a low product concentration. Therefore, our goal was to investigate Bacillus subtilis DSM10 production and improve the biosurfactant content in the broth by media optimization via response surface methodology. The optimal combinations of the investigated factors were determined as the following: pH = 9, glucose = 20 g/L, and NH4 NO3 = 2 g/L. Under the optimized conditions, the formed surfactin strain reduced surface tension in the broth by 48% (from 72 to 37 mN/m) and the isolated product by 63% (from 72 to 27 mN/m). An artificial neural network was built based on the results of response surface methodology to predict the product quality and the harvesting time of broth. Thus, finally, the model can predict the final cell and product amount, and even their time course, with around 90% reliability.
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Affiliation(s)
- Réka Czinkóczky
- Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Budapest, Hungary
| | - Jesse Sakiyo
- Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Budapest, Hungary
| | - Edina Eszterbauer
- Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Budapest, Hungary
| | - Áron Németh
- Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Budapest, Hungary
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13
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Enhanced production of surfactin using cassava wastewater and hydrophobic inducers: a prospection on new homologues. World J Microbiol Biotechnol 2023; 39:82. [PMID: 36658370 DOI: 10.1007/s11274-023-03529-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 01/17/2023] [Indexed: 01/21/2023]
Abstract
Biosurfactants are amphipathic molecules that can be applied in a wide range of areas. The cost of production limits the industrial application of biosurfactants. Nevertheless, the biosurfactant productivity can be easily enhanced by inducers. This work aimed to investigate the effect of hydrophobic inducers on surfactin production by B. subtilis ATCC 6633 using cassava wastewater as low-cost culture medium. The submerged cultivation was carried out at 30 °C, 150 rpm for 72 h. The fermentation parameters used were bacterial growth, consumption of sugars, and surfactin production, including surfactin homologues. The surface tension decreased by 40% after 12 h, when compared to control. Depletion of sugars was observed in all experiments. Palmitic acid led to the highest yield in terms of surfactin production (≈ 1.3 g·L- 1 of pure surfactin). The inducers triggered the production of new surfactin homologues, that represent, potentially, new biological activities.
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14
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Gevod V, Chernova A, Kovalenko I. Use of Auto-Induced Surfactants for Clarification of Biodenitrified Water by Bubble-Film Extraction Method. CHEMISTRY & CHEMICAL TECHNOLOGY 2022. [DOI: 10.23939/chcht16.04.660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The process of getting clarified denitrified water in a biofilter used combined methods of displacement (piston) biofiltration and bubble-film extraction is studied. It is shown the products of bacterial metabolism released into the water at biofiltration have surfactant properties. They can serve as collectors of the dispersed phase to achieve the desired degree of clarification of water when using bubble-film extraction. The turbidity of the resulting denitrified water does not exceed sanitary and hygienic limits. The concentration of biosurfactants is also significantly reduced.
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15
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Formulation of a glycolipid:lipopeptide mixture as biosurfactant-based dispersant and development of a low-cost glycolipid production process. Sci Rep 2022; 12:16353. [PMID: 36175491 PMCID: PMC9522864 DOI: 10.1038/s41598-022-20795-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/19/2022] [Indexed: 12/02/2022] Open
Abstract
Biosurfactant-based dispersants were formulated by mixing glycolipids from Weissella cibaria PN3 and lipopeptides from Bacillus subtilis GY19 to enhance the synergistic effect and thereby achieve hydrophilic-lipophilic balance. The proportions of each biosurfactant and dispersant-to-oil ratios (DORs) were varied to obtain the appropriated formulations. The most efficient glycolipid:lipopeptide mixtures (F1 and F2) had oil displacement activities of 81–88% for fuel and crude oils. The baffled flask test of these formulations showed 77–79% dispersion effectiveness at a DOR of 1:25. To reduce the cost of the dispersant, this study optimized the glycolipid production process by using immobilized cells in a stirred tank fermenter. Semicontinuous glycolipid production was carried out conveniently for 3 cycles. Moreover, food wastes, including waste coconut water and waste frying oil, were found to promote glycolipid production. Glycolipids from the optimized process and substrates had similar characteristics but 20–50% lower cost than those produced from basal medium with soybean oil in shaking flasks. The lowest cost dispersant formulation (F2*) contained 10 g/L waste-derived cell-bound glycolipid and 10 g/L lipopeptide and showed high dispersion efficiency with various oils. Therefore, this biosurfactant-based dispersant could be produced on a larger scale for further application.
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16
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Surface-Active Compounds Produced by Microorganisms: Promising Molecules for the Development of Antimicrobial, Anti-Inflammatory, and Healing Agents. Antibiotics (Basel) 2022; 11:antibiotics11081106. [PMID: 36009975 PMCID: PMC9404966 DOI: 10.3390/antibiotics11081106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/29/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022] Open
Abstract
Surface-active compounds (SACs), biomolecules produced by bacteria, yeasts, and filamentous fungi, have interesting properties, such as the ability to interact with surfaces as well as hydrophobic or hydrophilic interfaces. Because of their advantages over other compounds, such as biodegradability, low toxicity, antimicrobial, and healing properties, SACs are attractive targets for research in various applications in medicine. As a result, a growing number of properties related to SAC production have been the subject of scientific research during the past decade, searching for potential future applications in biomedical, pharmaceutical, and therapeutic fields. This review aims to provide a comprehensive understanding of the potential of biosurfactants and emulsifiers as antimicrobials, modulators of virulence factors, anticancer agents, and wound healing agents in the field of biotechnology and biomedicine, to meet the increasing demand for safer medical and pharmacological therapies.
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17
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Ghazala I, Charfeddine S, Charfeddine M, Gargouri-Bouzid R, Ellouz-Chaabouni S, Haddar A. Antimicrobial and antioxidant activities of Bacillus mojavensis I4 lipopeptides and their potential application against the potato dry rot causative Fusarium solani. Arch Microbiol 2022; 204:484. [PMID: 35834024 DOI: 10.1007/s00203-022-03098-z] [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: 02/03/2022] [Revised: 06/19/2022] [Accepted: 06/21/2022] [Indexed: 11/02/2022]
Abstract
Lipopeptides are diverse metabolites produced by various bacterial and fungal genera. They are known for their antimicrobial and surfactant activities with diverse environmental, pharmaceutical, and also agronomic applications as biocontrol agents. In this study, a PCR was used to confirm the presence of NRPS genes in Bacillus mojavensis I4. This bacterial strain could produce diverse lipopeptides which belong to the fengycin, and surfactin families. The antioxidant activity of I4 biosurfactants was determined through four different in vitro assays. Furthermore, antimicrobial activity assays indicated that I4 lipopeptides exhibited marked inhibitory activity against several bacterial and fungal strains. Further treatment of potato dry rot causative pathogen Fusarium solani with I4 lipopeptides demonstrated a remarkable reduction in the fungal penetration by almost 80% after 15 days of incubation. The findings suggest that I4 lipopeptide is a potential biocontrol agent during potato tuber storage.
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Affiliation(s)
- Imen Ghazala
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering, Sfax University, P.O. Box 1173, 3038, Sfax, Tunisia.
| | - Safa Charfeddine
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering, Sfax University, P.O. Box 1173, 3038, Sfax, Tunisia
| | - Mariam Charfeddine
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering, Sfax University, P.O. Box 1173, 3038, Sfax, Tunisia
| | - Radhia Gargouri-Bouzid
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering, Sfax University, P.O. Box 1173, 3038, Sfax, Tunisia
| | - Semia Ellouz-Chaabouni
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering, Sfax University, P.O. Box 1173, 3038, Sfax, Tunisia
| | - Anissa Haddar
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering, Sfax University, P.O. Box 1173, 3038, Sfax, Tunisia
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18
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Márquez-Villa JM, Mateos-Díaz JC, Rodríguez-González JA, Camacho-Ruíz RM. Optimization of Lipopeptide Biosurfactant Production by Salibacterium sp. 4CTb in Batch Stirred-Tank Bioreactors. Microorganisms 2022; 10:microorganisms10050983. [PMID: 35630427 PMCID: PMC9145298 DOI: 10.3390/microorganisms10050983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/25/2022] [Accepted: 04/30/2022] [Indexed: 02/05/2023] Open
Abstract
Halophilic microorganisms are potentially capable as platforms to produce low-cost biosurfactants. However, the robustness of bioprocesses is still a challenge and, therefore, it is essential to understand the effects of microbiological culture conditions through bioreactor engineering. Based on a design of experiments (DOE) and a response surface methodology (RSM) tailored and taken from the literature, the present work focuses on the evaluation of a composite central design (CCD) under batch cultures in stirred-tank bioreactors with the halophilic bacteria Salibacterium sp. 4CTb in order to determine the operative conditions that favor mass transfer and optimize the production of a lipopeptide. The results obtained showed profiles highlighting the most favorable culture conditions, which lead to an emulsification index (E24%) higher than 70%. Moreover, through the behavior of dissolved oxygen (DO), it was possible to experimentally evaluate the higher volumetric coefficient of mass transfer in the presence of lipopeptide (kLa = 31 1/h) as a key criterion for the synthesis of the biosurfactant on further cell expansion.
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19
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Zhao Y, He J, Xu W, Fang B. Viscoelastic micellar system of mixed surfactin and octadecyl trimethyl ammonium chloride. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuqing Zhao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Laboratory of Chemical Engineering Rheology East China University of Science and Technology Shanghai China
| | - Jinlan He
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Laboratory of Chemical Engineering Rheology East China University of Science and Technology Shanghai China
| | - Wenting Xu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Laboratory of Chemical Engineering Rheology East China University of Science and Technology Shanghai China
| | - Bo Fang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Laboratory of Chemical Engineering Rheology East China University of Science and Technology Shanghai China
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20
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Mouafo HT, Sokamte AT, Mbawala A, Ndjouenkeu R, Devappa S. Biosurfactants from lactic acid bacteria: A critical review on production, extraction, structural characterization and food application. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101598] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Kumar B, Das B, Garain A, Rai S, Begum W, Inamuddin M, Mondal MH, Bhattarai A, Saha B. Diverse utilization of surfactants in coal-floatation for the sustainable development of clean coal production and environmental safety: a review. RSC Adv 2022; 12:23973-23988. [PMID: 36093245 PMCID: PMC9400654 DOI: 10.1039/d2ra02861a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/09/2022] [Indexed: 12/04/2022] Open
Abstract
The rapidly increasing modern industrial world demands a huge uninterrupted energy supply, where high-quality coal (HQC) is one of the major sources of the required energy. In this regard, a gigantic amount of solid waste including ash and toxic chemicals, such as heavy metals, nitrate and sulphur, gases including NOx and SOx are emitted during the direct incineration process of low-rank coal. About 10 Gt of CO2 and about one-fifth of total greenhouse gases in the world are emitted each year due to coal combustion in power plants, making it the single largest cause of climate change. The UN proposed that OECD countries stop producing electricity from coal by 2030 and the rest of the world by 2040. Herein, we discuss the development of modern technologies that can convert low-quality coal (LQC) into high-quality coal (HQC) to minimize the impact of fossil fuel burn, climate change, premature death of animals and all other related environmental hazards. Amongst the many established technologies, flotation pre-treatment is the most common and effective method used worldwide due to its lower energy input than other methods. In this review, we attempt to present an up-to-date understanding of the applications and utilities of surfactants in coal floating. We also demonstrate the possible modernization of this surfactant chemistry and its prospects. The rapidly increasing modern industrial world demands a huge uninterrupted energy supply, where high-quality coal (HQC) is one of the major sources of the required energy.![]()
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Affiliation(s)
- Biplab Kumar
- Department of Chemistry, The University of Burdwan, Burdwan-713104, WB, India
| | - Bidisha Das
- Department of Chemistry, The University of Burdwan, Burdwan-713104, WB, India
| | - Amit Garain
- Chemical Sciences Laboratory, Government General Degree College, Singur, Hooghly-712409, WB, India
| | - Summi Rai
- Department of Chemistry, M.M.A.M.C., Tribhuvan University, Biratnagar 56613, Nepal
| | - Wasefa Begum
- Department of Chemistry, The University of Burdwan, Burdwan-713104, WB, India
| | - Md. Inamuddin
- Department of Applied Chemistry, Aligarh Muslim University, Aligarh-202002, India
| | - Monohar Hossain Mondal
- Chemical Sciences Laboratory, Government General Degree College, Singur, Hooghly-712409, WB, India
| | - Ajaya Bhattarai
- Department of Chemistry, M.M.A.M.C., Tribhuvan University, Biratnagar 56613, Nepal
| | - Bidyut Saha
- Department of Chemistry, The University of Burdwan, Burdwan-713104, WB, India
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22
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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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23
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Augustyn AR, Pott RW, Tadie M. The interactions of the biosurfactant surfactin in coal flotation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Microbial Lipopeptide-Producing Strains and Their Metabolic Roles under Anaerobic Conditions. Microorganisms 2021; 9:microorganisms9102030. [PMID: 34683351 PMCID: PMC8540375 DOI: 10.3390/microorganisms9102030] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 01/17/2023] Open
Abstract
The lipopeptide produced by microorganisms is one of the representative biosurfactants and is characterized as a series of structural analogues of different families. Thirty-four families covering about 300 lipopeptide compounds have been reported in the last decades, and most of the reported lipopeptides produced by microorganisms were under aerobic conditions. The lipopeptide-producing strains under anaerobic conditions have attracted much attention from both the academic and industrial communities, due to the needs and the challenge of their applications in anaerobic environments, such as in oil reservoirs and in microbial enhanced oil recovery (MEOR). In this review, the fifty-eight reported bacterial strains, mostly isolated from oil reservoirs and dominated by the species Bacillus subtilis, producing lipopeptide biosurfactants, and the species Pseudomonas aeruginosa, producing glycolipid biosurfactants under anaerobic conditions were summarized. The metabolic pathway and the non-ribosomal peptide synthetases (NRPSs) of the strain Bacillus subtilis under anaerobic conditions were analyzed, which is expected to better understand the key mechanisms of the growth and production of lipopeptide biosurfactants of such kind of bacteria under anaerobic conditions, and to expand the industrial application of anaerobic biosurfactant-producing bacteria.
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25
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Guimarães CR, Pasqualino IP, de Sousa JS, Nogueira FCS, Seldin L, de Castilho LVA, Freire DMG. Bacillus velezensis H2O-1 surfactin efficiently maintains its interfacial properties in extreme conditions found in post-salt and pre-salt oil reservoirs. Colloids Surf B Biointerfaces 2021; 208:112072. [PMID: 34481248 DOI: 10.1016/j.colsurfb.2021.112072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 07/23/2021] [Accepted: 08/25/2021] [Indexed: 11/19/2022]
Abstract
Biosurfactants are molecules with surfactant properties produced by microorganisms, and can be used in various industrial sectors, e.g., the oil industry. These molecules can be used in enhanced oil recovery (EOR) in the pre-salt and post-salt reservoirs, where conditions of temperature, pressure, and salinity are quite varied, requiring a study of the stability of these molecules under these conditions. Bacillus velezensis H2O-1 produces five different surfactin homologs with a fatty-acid chain ranging from C11 to C16 and with a high capacity to reduce surface (24.8 mN.m-1) and interfacial tensions (1.5 and 0.8 8 mN.m-1 using light, medium oil and n-hexadecane, respectively). The critical micellar concentration (CMC) was 38.7 mg.L-1. Inversion wettability tests were carried out under the salinity conditions found in the post-salt (35 g.L-1) and pre-salt (70 g.L-1) reservoirs, in which it was observed that the surfactin reversed 100 % of the wettability of the calcite impregnated with light and medium oil. Using a central composite rotatable design, we demonstrated that surfactin maintained its interfacial properties when subjected simultaneously to extreme conditions of pressure, temperature and salinity commonly found in the post-salt (70 °C, 70 g.L-1 and 27.58 MPa) and pre-salt (100 °C, 150 g.L-1 and 48.2 MPa) layers. The results presented here highlight the efficiency and stability of H2O-1 surfactin in environmental conditions found in pre-salt and post-salt oil reservoirs.
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Affiliation(s)
| | - Ilson Paranhos Pasqualino
- Universidade Federal do Rio de Janeiro, Departamento de Engenharia Oceânica, COPPE, Rio de Janeiro, RJ, Brazil
| | - Joab Sampaio de Sousa
- Universidade Federal do Rio de Janeiro, Instituto de Química, Rio de Janeiro, RJ, Brazil
| | | | - Lucy Seldin
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia Paulo de Góes, Rio de Janeiro, RJ, Brazil
| | - Livia Vieira Araujo de Castilho
- Universidade Federal do Rio de Janeiro, Instituto de Química, Rio de Janeiro, RJ, Brazil; Universidade Federal do Rio de Janeiro, Departamento de Engenharia Oceânica, COPPE, Rio de Janeiro, RJ, Brazil
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26
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Neural Network Methodology for the Identification and Classification of Lipopeptides Based on SMILES Annotation. COMPUTERS 2021. [DOI: 10.3390/computers10060074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Artificial Neural Networks can be applied for the identification and classification of prospective drug candidates such as complex compounds, including lipopeptide, based on their SMILES string representation. The training of neural networks is done with SMILES strings, which are predictive of structural identification; the ANNs are efficient of correctly classifying all compounds, substructures and their analogues distinguishing the drugs based upon atomic organization to obtain lead optimization in drug discovery. The proficiency of the trained ANN models in recognizing and classifying the analogous compounds was tested for analysis of similar compounds, which were not taken previously for training and achieved results with correct classification in the validation set. The best result was achieved with 10 numbers of hidden layers. The R2 value for training is 0.90586; the R2 value for testing is 0.99508; the R2 value after validation is 0.94151; the final value of R2 for total sets is 0.89456. The graphs are plotted between 21 epochs and mean square error (MSE) to report the performance of the model. The value of 798.1735 for the gradient of the curve after 21 iterations and 6 validation checks was obtained. A successful model was developed for the identification and classification of lipopeptides from their SMILES annotation that efficiently classifies similar compounds and supports in decision making for analogue-based drug discovery. This will help in appropriate lead optimization studies for the prediction of potential anticancer and antimicrobial lipopeptide-based therapeutics.
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27
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Dialkyl Sulfobetaine Surfactants Derived from Guerbet Alcohol Polyoxypropylene–Polyoxyethylene Ethers for
SP
Flooding of High Temperature and High Salinity Reservoirs. J SURFACTANTS DETERG 2021. [DOI: 10.1002/jsde.12490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Etemadzadeh SS, Emtiazi G. In vitro identification of antimicrobial hemolytic lipopeptide from halotolerant Bacillus by Zymogram, FTIR, and GC mass analysis. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2021; 24:666-674. [PMID: 34249269 PMCID: PMC8244604 DOI: 10.22038/ijbms.2021.53419.12022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 04/13/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVES The multi-drug resistant bacteria and clinical infections are some of the biggest global concerns, so new drugs are needed. Antimicrobial peptides and lipopeptides are new bioactive agents with great potential that can become a new strategy for clinical applications. MATERIALS AND METHODS Some Bacillus strains were isolated based on hemolytic antimicrobial production from the soil. The extracellular proteins were extracted by acidic precipitation and chloroform/methanol method and analyzed by SDS-PAGE electrophoresis and stained with Sudan black. The black fragment was purified and characterized by FTIR, GC/MS, and HPLC analysis to demonstrate the presence of lipids and proteins. The anti-microbial ability and stability of the purified lipopeptide were assayed by the Kirby-Bauer method. Also, it was examined for metal removal. RESULTS A new Bacillus halotolerans strain SCM 034 with hemolytic antimicrobial production was isolated. According to GC/MS (detecting C16, C17) and HPLC (detecting leucine, glutamic acid, valine, arginine, glycine, and aspartic acid) data, the black fragment was lipopeptide. Polyacrylamide hydrogel containing lipopeptide and gel purified lipopeptide showed anti-microbial activities against S. aureus and S. cerevisiae that were stable for a few months. Also, the lipopeptide was useful for cation removal and decreased cobalt, nickel, and calcium by 10.81 %, 24.39 %, and 34 %, respectively. CONCLUSION Production of antibacterial lipopeptide hemolysin from this strain is reported for the first time and according to the results, lipopeptides have unique properties with biomedical and pharmaceutical applications. Also, polyacrylamide hydrogel lipopeptide is a promising candidate for wound healing.
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Affiliation(s)
- Shekoofeh Sadat Etemadzadeh
- Department of Cellular and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Giti Emtiazi
- Department of Cellular and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
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29
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Gang H, Bian P, He X, He X, Bao X, Mu B, Li Y, Yang S. Mixing of Surfactin, an Anionic Biosurfactant, with Alkylbenzene Sulfonate, a Chemically Synthesized Anionic Surfactant, at the
n
‐Decane
/Water Interface. J SURFACTANTS DETERG 2021. [DOI: 10.1002/jsde.12495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Hong‐Ze Gang
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering and Engineering Research Center of Microbial Enhanced Oil Recovery, MOE East China University of Science and Technology Shanghai 200237 China
- Shanghai Collaborative Innovation Center for Biomanufacturing Technology Shanghai 200237 China
| | - Peng‐Cheng Bian
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering and Engineering Research Center of Microbial Enhanced Oil Recovery, MOE East China University of Science and Technology Shanghai 200237 China
| | - Xiuli He
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering and Engineering Research Center of Microbial Enhanced Oil Recovery, MOE East China University of Science and Technology Shanghai 200237 China
| | - Xiujuan He
- Sinopec Key Lab of Surfactants for EOR Sinopec Shanghai Research Institute of Petrochemical Technology North Pudong 1658 Shanghai 201208 China
| | - Xinning Bao
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering and Engineering Research Center of Microbial Enhanced Oil Recovery, MOE East China University of Science and Technology Shanghai 200237 China
- Sinopec Key Lab of Surfactants for EOR Sinopec Shanghai Research Institute of Petrochemical Technology North Pudong 1658 Shanghai 201208 China
| | - Bo‐Zhong Mu
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering and Engineering Research Center of Microbial Enhanced Oil Recovery, MOE East China University of Science and Technology Shanghai 200237 China
- Shanghai Collaborative Innovation Center for Biomanufacturing Technology Shanghai 200237 China
| | - Yingcheng Li
- Sinopec Key Lab of Surfactants for EOR Sinopec Shanghai Research Institute of Petrochemical Technology North Pudong 1658 Shanghai 201208 China
| | - Shi‐Zhong Yang
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering and Engineering Research Center of Microbial Enhanced Oil Recovery, MOE East China University of Science and Technology Shanghai 200237 China
- Shanghai Collaborative Innovation Center for Biomanufacturing Technology Shanghai 200237 China
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Nikolova C, Gutierrez T. Biosurfactants and Their Applications in the Oil and Gas Industry: Current State of Knowledge and Future Perspectives. Front Bioeng Biotechnol 2021; 9:626639. [PMID: 33659240 PMCID: PMC7917263 DOI: 10.3389/fbioe.2021.626639] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/13/2021] [Indexed: 11/13/2022] Open
Abstract
Surfactants are a group of amphiphilic chemical compounds (i.e., having both hydrophobic and hydrophilic domains) that form an indispensable component in almost every sector of modern industry. Their significance is evidenced from the enormous volumes that are used and wide diversity of applications they are used in, ranging from food and beverage, agriculture, public health, healthcare/medicine, textiles, and bioremediation. A major drive in recent decades has been toward the discovery of surfactants from biological/natural sources-namely bio-surfactants-as most surfactants that are used today for industrial applications are synthetically-manufactured via organo-chemical synthesis using petrochemicals as precursors. This is problematic, not only because they are derived from non-renewable resources, but also because of their environmental incompatibility and potential toxicological effects to humans and other organisms. This is timely as one of today's key challenges is to reduce our reliance on fossil fuels (oil, coal, gas) and to move toward using renewable and sustainable sources. Considering the enormous genetic diversity that microorganisms possess, they offer considerable promise in producing novel types of biosurfactants for replacing those that are produced from organo-chemical synthesis, and the marine environment offers enormous potential in this respect. In this review, we begin with an overview of the different types of microbial-produced biosurfactants and their applications. The remainder of this review discusses the current state of knowledge and trends in the usage of biosurfactants by the Oil and Gas industry for enhancing oil recovery from exhausted oil fields and as dispersants for combatting oil spills.
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Affiliation(s)
| | - Tony Gutierrez
- School of Engineering and Physical Sciences, Institute of Mechanical, Process and Energy Engineering, Heriot-Watt University, Edinburgh, United Kingdom
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31
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Biosurfactants’ Potential Role in Combating COVID-19 and Similar Future Microbial Threats. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app11010334] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
During 2020, the world has experienced extreme vulnerability in the face of a disease outbreak. The coronavirus disease 2019 (COVID-19) pandemic discovered in China and rapidly spread across the globe, infecting millions, causing hundreds of thousands of deaths, and severe downturns in the economies of countries worldwide. Biosurfactants can play a significant role in the prevention, control and treatment of diseases caused by these pathogenic agents through various therapeutic, pharmaceutical, environmental and hygiene approaches. Biosurfactants have the potential to inhibit microbial species with virulent intrinsic characteristics capable of developing diseases with high morbidity and mortality, as well as interrupting their spread through environmental and hygiene interventions. This is possible due to their antimicrobial activity, ability to interact with cells forming micelles and to interact with the immune system, and compatibility with relevant processes such as nanoparticle synthesis. They, therefore, can be applied in developing innovative and more effective pharmaceutical, therapeutics, sustainable and friendly environmental management approaches, less toxic formulations, and more efficient cleaning agents. These approaches can be easily integrated into relevant product development pipelines and implemented as measures for combating and managing pandemics. This review examines the potential approaches of biosurfactants as useful molecules in fighting microbial pathogens both known and previously unknown, such as COVID-19.
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Synergistic Inhibitory Activity of Bacillomycin D, Surfactin and Nisin against Thermoascus crustaceus, Neosartorya hiratsukae and Bacillus subtilis, Responsible for Cardboard Spoilage. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2020. [DOI: 10.22207/jpam.14.4.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Corrugated cardboard boxes are one of the largest paper-based packaging forms used for shipping and handling of wide variety of products in different end-use industries due to low cost, low weight and recyclability. Due to its organic composition, they are highly susceptible to spoilage from heat-resistant microbial spores, leading to economic losses and health risks. In this study, the efficacy of lipopeptides produced from Bacillus amyloliquefaciens MTCC 10456 against thermotolerant Thermoascus crustaceus, Neosartorya hiratsukae and Bacillus subtilis, isolated from spoiled cardboard boxes, was investigated. Lipopeptides were isolated by salt-precipitation of fermentation broth and activity-guided Reverse Phase-High Performance Liquid Chromatography (RP-HPLC). Inhibitory fractions consisted of bacillomycin D and surfactin, which were identified using liquid chromatography-electrospray ionization mass spectrometry (LC-ESI-MS/MS) analysis. Mixture of lipopeptides with nisin (3:2 w/w) asserted significant synergistic effect on the tested pathogens which reduced the minimum inhibitory concentrations (MIC) values and increased their inhibition spectra. Preservative coating containing lipopeptides and nisin was applied on the corrugated cardboard surfaces by mixing with starch-based additive by spread-coating method. It demonstrated biopreservative efficacy against the targeted microorganisms at during the observational period of 180 days. Reduction in microbial count of 4 log cycles was observed in 20 days and showed controlled release of coated peptides which indicate its suitability for packaging purposes. Findings from this study suggests an effective and scalable strategy to prevent microbial spoilage thereby extending the storage period of cardboard boxes.
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Bacillus subtilis Inhibits Viral Hemorrhagic Septicemia Virus Infection in Olive Flounder ( Paralichthys olivaceus) Intestinal Epithelial Cells. Viruses 2020; 13:v13010028. [PMID: 33375689 PMCID: PMC7823535 DOI: 10.3390/v13010028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/15/2020] [Accepted: 12/22/2020] [Indexed: 12/13/2022] Open
Abstract
Viral hemorrhagic septicemia virus (VHSV) is a highly pathogenic virus that infects a wide range of host fish species causing high economic losses in aquaculture. Epithelial cells in mucosal organs are target sites for VHSV entry into fish. To protect fish against VHSV infection, there is a need to develop antiviral compounds able to prevent establishment of infection at portals of virus entry into fish. Bacillus subtilis is a probiotic with excellent antiviral properties, of which one of its secretions, surfactin, has been shown to inhibit viral infections in mammals. Herein, we demonstrate its ability to prevent VHSV infection in olive flounder (Paralichthys olivaceus) intestinal epithelial cells (IECs) and infection in internal organs. Our findings show inhibition of VHSV infection in IECs by B. subtilis and surfactin. In addition, our findings showed inhibition of VHSV in Epithelioma Papulosum Cyprini (EPC) cells inoculated with intestinal homogenates from the fish pretreated with B. subtilis by oral exposure, while the untreated fish had cytopathic effects (CPE) caused by VHSV infection in the intestines at 48 h after the VHSV challenge. At 96 h post-challenge, samples from the untreated fish had CPE from head kidney and spleen homogenates and no CPE were observed in the intestinal homogenates, while the B. subtilis-pretreated fish had no CPE in all organs. These findings demonstrate that inhibition of VHSV infection at portals of virus entry in the intestines culminated in prevention of infection in internal organs. In summary, our results show that B. subtilis has the potential to prevent VHSV infection in fish and that its use as a probiotic in aquaculture has the potential to serve as an antiviral therapeutic agent against different viral infections.
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Rocha PM, Dos Santos Mendes AC, de Oliveira Júnior SD, de Araújo Padilha CE, de Sá Leitão ALO, da Costa Nogueira C, de Macedo GR, Dos Santos ES. Kinetic study and characterization of surfactin production by Bacillus subtilis UFPEDA 438 using sugarcane molasses as carbon source. Prep Biochem Biotechnol 2020; 51:300-308. [PMID: 32914662 DOI: 10.1080/10826068.2020.1815055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present study evaluated the surfactin production by Bacillus subtilis UFPEDA 438 using sugarcane molasses as a substrate. The effects of the cultivation conditions (temperature, agitation and aeration ratio) on the biosurfactant production and kinetic parameters were investigated. Characteristics of the biosurfactant were obtained after analyses of the emulsification index (EI) and critical micellar concentration (CMC) of the fermentation broth. The results showed that in relation to the product its formation kinetics is strongly affected by operational conditions. It was also observed that surfactin production can be partially dependent or fully independent on microbial growth. The maximum values of surfactin concentration (199.45 ± 0.13 mg/L) and productivity (8,187 mg/L.h) were obtained in the culture under cultivation time of 24 h, temperature of 36 °C, agitation of 100 rpm and aeration ratio of 0.4. Under optimal conditions, the fermentation broth achieved good emulsification capacity (EI >40%) and CMC value of 20.73 mg/L. The results revealed that Bacillus subtilis UFPEDA 438 is a good producer of biosurfactant and that sugarcane molasses is a viable substrate for the production of surfactin.
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Affiliation(s)
- Patrícia Maria Rocha
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Ana Carmen Dos Santos Mendes
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Sérgio Dantas de Oliveira Júnior
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Carlos Eduardo de Araújo Padilha
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Ana Laura Oliveira de Sá Leitão
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Cleitiane da Costa Nogueira
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Gorete Ribeiro de Macedo
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Everaldo Silvino Dos Santos
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
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35
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Rekiel E, Zdziennicka A, Jańczuk B. Adsorption of surfactin at water with ethanol mixture-air interface. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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36
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Revealing the bacterial community profiles during the degradation of acetone, propionic and hexanoic acids-components of wastewater from the Fischer-Tropsch process. Int Microbiol 2019; 23:313-324. [PMID: 31758335 DOI: 10.1007/s10123-019-00106-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/03/2019] [Accepted: 11/07/2019] [Indexed: 12/24/2022]
Abstract
The Fischer-Tropsch (F-T) process for production of fuels is entrenched in several countries' approach to meeting energy demands. However, the clean water deficit associated with the down-stream processes has made it necessary to explore bioremediation methods to ameliorate the consequences of its use. In this study, a consortium of bacteria was utilized for determination of biodegradation and removal rates, based on reduction in chemical oxygen demand of a mixture of acetone, propionic acid and hexanoic acid (APH) (all components of F-T wastewater), at an organic loading of 5 and 9.53 g CODL-1. The individual degradation efficiencies of the F-T components were determined using a gas chromatograph. Further, the bacterial consortia responsible for the degradation of the mixture of APH were determined using metagenomics data derived from next-generation sequencing. The overall chemical oxygen demand removal was found to be 88.8% and 82.3% at organic loading of 5 and 9.53 g CODL-1, respectively. The optimal degradation efficiency of acetone, propionic acid and hexanoic acid over a period of 10 days was found to be 100%, 85% and 75.8%, respectively. The primary microbial communities presumed to be responsible for APH degradation by phyla classification across all samples were found to be Proteobacteria (55-92%), Actinobacteria (5-33%) and Firmicutes (0.08-9%). Overall, the study has demonstrated the importance of aerobic consortia interactions in the degradation of components of the F-T wastewater.
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37
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Fenibo EO, Ijoma GN, Selvarajan R, Chikere CB. Microbial Surfactants: The Next Generation Multifunctional Biomolecules for Applications in the Petroleum Industry and Its Associated Environmental Remediation. Microorganisms 2019; 7:E581. [PMID: 31752381 PMCID: PMC6920868 DOI: 10.3390/microorganisms7110581] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 11/30/2022] Open
Abstract
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.
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Affiliation(s)
- Emmanuel O. Fenibo
- World Bank Africa Centre of Excellence, Centre for Oilfield Chemical Research, University of Port Harcourt, Port Harcourt 500272, Nigeria
| | - Grace N. Ijoma
- Institute for the Development of Energy for African Sustainability, University of South Africa, Roodepoort 1709, South Africa;
| | - Ramganesh Selvarajan
- Department of Environmental Science, University of South Africa, Florida Campus, Rooderpoort 1709, South Africa
| | - Chioma B. Chikere
- Department of Microbiology, Faculty of Science, University of Port Harcourt, Port Harcourt 500272, Nigeria;
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38
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Evaluation of various methods of selection of B. subtilis strains capable of secreting surface-active compounds. PLoS One 2019; 14:e0225108. [PMID: 31715626 PMCID: PMC6850892 DOI: 10.1371/journal.pone.0225108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/28/2019] [Indexed: 12/13/2022] Open
Abstract
The aim of the study was the evaluation of a three-step method for the selection of bacterial strains capable of producing surfactin. The procedure consisted of the following steps: 1.blood agar test, 2. measurement of the surface tension (ST) of the medium using the du Nouy method before and after submerged culture, 3. qualitative and quantitative assessment of surfactin by HPLC. Forty five Bacillus subtilis natto strains producing haemolysis zones (≥3mm) were selected. Nineten of them reduced ST of the medium to ≤ 40 mN/m; in six cases, the reduction was as much as 50%. All indicated strains produced surfactin. Positive correlations (p <0.5) between the percentage reduction of ST of the medium and surfactin concentration (r = 0.44), indicate that this parameter is determinant of the ability to synthesize this compound. The blood agar test has been shown to be useful only as a pre-selection criterion for surfactin producers (18 strains selected by this method reduced ST by only ≤30%). The proposed selection strategy proved effective and made it possible to select the BS15 strain that reduced the ST of the medium to 30.56 ± 0.15 mN/m and simultaneously provided a high concentration of surfactin compared to other strains.
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39
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Kaspar F, Neubauer P, Gimpel M. Bioactive Secondary Metabolites from Bacillus subtilis: A Comprehensive Review. JOURNAL OF NATURAL PRODUCTS 2019; 82:2038-2053. [PMID: 31287310 DOI: 10.1021/acs.jnatprod.9b00110] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bacillus subtilis is widely underappreciated for its inherent biosynthetic potential. This report comprehensively summarizes the known bioactive secondary metabolites from B. subtilis and highlights potential applications as plant pathogen control agents, drugs, and biosurfactants. B. subtilis is well known for the production of cyclic lipopeptides exhibiting strong surfactant and antimicrobial activities, such as surfactins, iturins, and fengycins. Several polyketide-derived macrolides as well as nonribosomal peptides, dihydroisocoumarins, and linear lipopeptides with antimicrobial properties have been reported, demonstrating the biosynthetic arsenal of this bacterium. Promising efforts toward the application of B. subtilis strains and their natural products in areas of agriculture and medicine are underway. However, industrial-scale availability of these compounds is currently limited by low fermentation yields and challenging accessibility via synthesis, necessitating the development of genetically engineered strains and optimized cultivation processes. We hope that this review will attract renewed interest in this often-overlooked bacterium and its impressive biosynthetic skill set.
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Affiliation(s)
- Felix Kaspar
- Institute of Biotechnology , Technical University of Berlin , Ackerstraße 76 , 13355 Berlin , Germany
| | - Peter Neubauer
- Institute of Biotechnology , Technical University of Berlin , Ackerstraße 76 , 13355 Berlin , Germany
| | - Matthias Gimpel
- Institute of Biotechnology , Technical University of Berlin , Ackerstraße 76 , 13355 Berlin , Germany
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40
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Chowdhury S, Rakshit A, Acharjee A, Saha B. Novel Amphiphiles and Their Applications for Different Purposes with Special Emphasis on Polymeric Surfactants. ChemistrySelect 2019. [DOI: 10.1002/slct.201901160] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Suman Chowdhury
- Homogeneous Catalysis LaboratoryDepartment Of ChemistryThe University Of Burdwan, Golapbag, Burdwan, Pin - 713104 West Bengal India
| | - Atanu Rakshit
- Homogeneous Catalysis LaboratoryDepartment Of ChemistryThe University Of Burdwan, Golapbag, Burdwan, Pin - 713104 West Bengal India
| | - Animesh Acharjee
- Homogeneous Catalysis LaboratoryDepartment Of ChemistryThe University Of Burdwan, Golapbag, Burdwan, Pin - 713104 West Bengal India
| | - Bidyut Saha
- Homogeneous Catalysis LaboratoryDepartment Of ChemistryThe University Of Burdwan, Golapbag, Burdwan, Pin - 713104 West Bengal India
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41
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Park G, Nam J, Kim J, Song J, Kim PI, Min HJ, Lee CW. Structure and Mechanism of Surfactin Peptide from
Bacillus velezensis
Antagonistic to Fungi Plant Pathogens. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11757] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gwansik Park
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Jiyoung Nam
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Jueun Kim
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Jaekyeong Song
- Agricultural Microbiology Division, National Institute of Agricultural Sciences (NAS)Rural Development Administration (RDA) Jeonju 55365 Republic of Korea
| | - Pyoung Il Kim
- Center for Industrialization of Agricultural and Livestock Microorganisms Chonbuk 56212 Republic of Korea
| | - Hye Jung Min
- Department of Cosmetic Science, Kwangju Women's University Gwangju 62396 Republic of Korea
| | - Chul Won Lee
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
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42
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Uribe‐Flores M, Cerqueda‐García D, Hernández‐Nuñez E, Cadena S, García‐Cruz N, Trejo‐Hernández M, Aguirre‐Macedo M, García‐Maldonado J. Bacterial succession and co‐occurrence patterns of an enriched marine microbial community during light crude oil degradation in a batch reactor. J Appl Microbiol 2019; 127:495-507. [DOI: 10.1111/jam.14307] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/15/2019] [Accepted: 05/06/2019] [Indexed: 12/17/2022]
Affiliation(s)
- M.M. Uribe‐Flores
- Departamento de Recursos del Mar Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Mérida Mérida Mexico
| | - D. Cerqueda‐García
- Consorcio de Investigación del Golfo de México (CIGoM) Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Mérida Mérida Mexico
| | - E. Hernández‐Nuñez
- CONACYT – Departamento de Recursos del Mar Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Mérida Mérida Mexico
| | - S. Cadena
- Departamento de Recursos del Mar Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Mérida Mérida Mexico
| | - N.U. García‐Cruz
- Consorcio de Investigación del Golfo de México (CIGoM) Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Mérida Mérida Mexico
| | - M.R. Trejo‐Hernández
- Centro de Investigación en Biotecnología Universidad Autónoma del Estado de Morelos Cuernavaca, Morelos Mexico
| | - M.L. Aguirre‐Macedo
- Departamento de Recursos del Mar Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Mérida Mérida Mexico
| | - J.Q. García‐Maldonado
- CONACYT – Departamento de Recursos del Mar Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Mérida Mérida Mexico
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43
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Songsaeng S, Thamyongkit P, Poompradub S. Natural rubber/reduced-graphene oxide composite materials: Morphological and oil adsorption properties for treatment of oil spills. J Adv Res 2019; 20:79-89. [PMID: 31245157 PMCID: PMC6582200 DOI: 10.1016/j.jare.2019.05.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/07/2019] [Accepted: 05/30/2019] [Indexed: 11/29/2022] Open
Abstract
Natural rubber/rGO composite foam was used as an oil sorbent. Addition of rGO enhanced the oil adsorption capacity and strength of NR sorbent foam. Inclusion of 0.5 phr rGO into NR increased the crude oil adsorption capacity to 17.04 g g−1. Oil adsorption mechanism of the sorbent materials was proposed. Reusability of the NR/rGO sorbent was greater than 70% oil adsorption for 30 cycles.
A green sorbent material was fabricated through the simple addition of reduced graphene oxide (rGO) to natural rubber (NR) latex. The effect of rGO content in the NR foam on petroleum oil adsorption was investigated. The addition of rGO in NR increased the petroleum oil adsorption capacity of the resulting NR/rGO (NRG) composite foam (12–21 g g−1) with respect to those of the pure NR foam (8–15 g g−1) and a commercial sorbent (6–7 g g−1). The adsorption capacity was optimal for 0.5 phr rGO (NRG-0.5). Further, the environmental conditions (temperature and waves) affected the oil adsorption capacity of the sorbent materials. The adsorption kinetics of the sorbent materials for crude AXL oil was best described with pseudo-second-order kinetics. The interparticle diffusion model revealed three steps whereas the adsorption isotherms approximated the Langmuir isotherms. Moreover, the oil adsorption mechanisms of the NR and NRG sorbent materials were compared to that of a commercial sorbent. The high elasticity of the NRG-0.5 composite foam improved not only the oil adsorption capacity but also the reusability of the sorbent material. The presence of rGO increased the strength of the NRG-0.5 compared to that of pure NR, which resulted in a high-performance and reusable material with an oil removal efficiency higher than 70% after 30 uses.
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Affiliation(s)
- Siripak Songsaeng
- Program in Hazardous Substance and Environmental Management, Chulalongkorn University, Bangkok 10330, Thailand
| | - Patchanita Thamyongkit
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sirilux Poompradub
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.,Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand.,Green Materials for Industrial Application Research Unit, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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44
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Elumalai P, Parthipan P, Narenkumar J, Anandakumar B, Madhavan J, Oh BT, Rajasekar A. Role of thermophilic bacteria ( Bacillus and Geobacillus) on crude oil degradation and biocorrosion in oil reservoir environment. 3 Biotech 2019; 9:79. [PMID: 30800590 DOI: 10.1007/s13205-019-1604-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 02/01/2019] [Indexed: 12/16/2022] Open
Abstract
Thermophilic bacterial communities generate thick biofilm on carbon steel API 5LX and produce extracellular metabolic products to accelerate the corrosion process in oil reservoirs. In the present study, nine thermophilic biocorrosive bacterial strains belonging to Bacillus and Geobacillus were isolated from the crude oil and produced water sample, and identified using 16S rRNA gene sequencing. The biodegradation efficiency of hydrocarbons was found to be high in the presence of bacterial isolates MN6 (82%), IR4 (94%) and IR2 (87%). During the biodegradation process, induction of the catabolic enzymes such as alkane hydroxylase, alcohol dehydrogenase and lipase were also examined in these isolates. Among them, the highest activity of alkane hydroxylase (130 µmol mg-1 protein) in IR4, alcohol dehydrogenase (70 µmol mg-1 protein) in IR2, and higher lipase activity in IR4 (60 µmol mg-1 protein) was observed. Electrochemical impedance spectroscopy and X-ray diffraction data showed that these isolates oxidize iron into ferrous/ferric oxides as the corrosion products on the carbon steel surface, whilst the crude oil hydrocarbon served as a sole carbon source for bacterial growth and development in such extreme environments.
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Affiliation(s)
- Punniyakotti Elumalai
- 1Division of Biotechnology, Advanced Institute of Environment and Biosciences, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 54596 South Korea
| | - Punniyakotti Parthipan
- 2Electro-Materials Research Lab, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605 014 India
| | - Jayaraman Narenkumar
- 3Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
| | - Balakrishnan Anandakumar
- 4Corrosion Science and Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu 603102 India
| | - Jagannathan Madhavan
- 5Solar Energy Laboratory, Department of Chemistry, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
| | - Byung-Taek Oh
- 1Division of Biotechnology, Advanced Institute of Environment and Biosciences, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 54596 South Korea
| | - Aruliah Rajasekar
- 3Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
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Valdivia-Rivera S, Varela-Santos EDC, Quiñones-Muñoz TA, Hernández-Martínez R, Lizardi-Jiménez MA. Production of hydrocarbon-degrading microorganisms using agricultural residues of Mangifera indica L. and Carica papaya as carbon source. 3 Biotech 2019; 9:43. [PMID: 30675453 DOI: 10.1007/s13205-019-1574-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 01/11/2019] [Indexed: 11/26/2022] Open
Abstract
The aim of the present study was to evaluate the potential of oils from agricultural residues, such as Mangifera indica L. (mango) and Carica papaya (papaya) from the Papaloapan region, Mexico, as a carbon source for the production of hydrocarbon-degrading (hydrocarbonoclastic) microorganisms in an airlift bioreactor via a common metabolic pathway for hydrocarbons and fatty acids. Biomass growth and carbon source uptake were measured using optical density and gas chromatography, respectively. Gompertz, logistic, and Von Bertalanffy mathematical models were used to obtain kinetic parameters such as the lag phase, maximum specific growth, and consumption rate. The hydrocarbonoclastic consortium was able to grow using papaya (6.09 ± 0.23 g L-1) and mango (2.59 ± 0.30 g L-1) oils, which contain certain antibacterial fatty acids. Differences observed in maximum specific growth and consumption rates indicate that, although mango oil was consumed faster (0.33 day-1 for mango and 0.25 day-1 for papaya), papaya oil provided a higher rate of biomass production per microorganism (0.24 day-1 for mango and 0.44 day-1 for papaya). Additionally, the consortium was able to consume 13 g L-1 diesel as a sole carbon source and improve its maximum specific consumption rate following growth using the oils. Furthermore, the maximum specific growth rate was decreased, indicating a change in the consortium capabilities. Nevertheless, agricultural waste oils from the Papaloapan region can be used to cultivate hydrocarbonoclastic microorganisms. The present study creates the possibility of investigating carbon sources other than hydrocarbons for the production of hydrocarbonoclastic microorganisms.
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Affiliation(s)
- Sergio Valdivia-Rivera
- Instituto Tecnológico Superior de Tierra Blanca, Av. Veracruz s/n, Tierra Blanca, Ver., CP: 95180 Mexico, Mexico
| | | | | | - Ricardo Hernández-Martínez
- 2CONACYT-Instituto Tecnológico Superior de Tierra Blanca, Av. Veracruz s/n, Tierra Blanca, Ver., CP: 95180 Mexico, Mexico
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Santos VSV, Silveira E, Pereira BB. Toxicity and applications of surfactin for health and environmental biotechnology. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2019; 21:382-399. [PMID: 30614421 DOI: 10.1080/10937404.2018.1564712] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Characterized as one of the most potent biosurfactants, surfactin is a cyclic lipopeptide synthesized by several strains of Bacillus genus. The aim of this review was to present the physicochemical and structural properties of surfactin and to demonstrate advances and applications of this biosurfactant for health and environmental biotechnology. Further, this review also focused on toxicological effects of surfactin on in vivo and in in vitro systems. The hydrophobic nature of surfactin enables interaction with membrane-bound phospholipids and indicates the ability of the molecule to act as a new weapon with respect to therapeutic and environmental properties. Seeking to avoid environmental contamination produced by widespread use of synthetic surfactants, surfactin emerges as a biological control agent against pathogen species owing to its antibacterial and antiviral properties. In addition, the mosquitocidal activity of surfactin was suggested as new strategy to control disease vectors. The current findings warrant future research to assess the toxicity of surfactin to enable an optimizing anticancer therapy and to seek refined methodologies, including nanotechnology techniques, to allow for an improved delivery of the biogenic molecule on target cells.
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Affiliation(s)
- Vanessa Santana Vieira Santos
- a Department of Environmental Health, Laboratory of Environmental Health , Federal University of Uberlândia, Santa Mônica Campus , Uberlândia , Brazil
- b Institute of Biotechnology, Department of Biotechnology , Federal University of Uberlândia, Umuarama Campus , Uberlândia , Brazil
| | - Edgar Silveira
- b Institute of Biotechnology, Department of Biotechnology , Federal University of Uberlândia, Umuarama Campus , Uberlândia , Brazil
| | - Boscolli Barbosa Pereira
- a Department of Environmental Health, Laboratory of Environmental Health , Federal University of Uberlândia, Santa Mônica Campus , Uberlândia , Brazil
- b Institute of Biotechnology, Department of Biotechnology , Federal University of Uberlândia, Umuarama Campus , Uberlândia , Brazil
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Patel S, Homaei A, Patil S, Daverey A. Microbial biosurfactants for oil spill remediation: pitfalls and potentials. Appl Microbiol Biotechnol 2018; 103:27-37. [DOI: 10.1007/s00253-018-9434-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/02/2018] [Accepted: 10/02/2018] [Indexed: 12/11/2022]
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Zdziennicka A, Krawczyk J, Jańczuk B. Volumetric properties of rhamnolipid and surfactin at different temperatures. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.02.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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S.J. G, Banat IM, Joshi SJ. Biosurfactants: Production and potential applications in microbial enhanced oil recovery (MEOR). BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.01.010] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Franco Marcelino PR, da Silva VL, Rodrigues Philippini R, Von Zuben CJ, Contiero J, dos Santos JC, da Silva SS. Biosurfactants produced by Scheffersomyces stipitis cultured in sugarcane bagasse hydrolysate as new green larvicides for the control of Aedes aegypti, a vector of neglected tropical diseases. PLoS One 2017; 12:e0187125. [PMID: 29125845 PMCID: PMC5695273 DOI: 10.1371/journal.pone.0187125] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 10/13/2017] [Indexed: 01/16/2023] Open
Abstract
Biosurfactants are microbial metabolites with possible applications in various industrial sectors that are considered ecofriendly molecules. In recent years, some studies identified these compounds as alternatives for the elimination of vectors of tropical diseases, such as Aedes aegypti. The major bottlenecks of biosurfactant industrial production have been the use of conventional raw materials that increase production costs as well as opportunistic or pathogenic bacteria, which restrict the application of these biomolecules. The present study shows the potential of hemicellulosic sugarcane bagasse hydrolysate as a raw material for the production of a crystalline glycolipidic BS by Scheffersomyces stipitis NRRL Y-7124, which resulted in an emulsifying index (EI24) of 70 ± 3.4% and a superficial tension of 52 ± 2.9 mN.m-1. Additionally, a possible new application of these compounds as biolarvicides, mainly against A. aegypti, was evaluated. At a concentration of 800 mg.L-1, the produced biosurfactant caused destruction to the larval exoskeletons 12 h after application and presented an letal concentration (LC50) of 660 mg.L-1. Thus, a new alternative for biosurfactant production using vegetal biomass as raw material within the concept of biorefineries was proposed, and the potential of the crystalline glycolipidic biosurfactant in larvicidal formulations against neglected tropical disease vectors was demonstrated.
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Affiliation(s)
| | - Vinícius Luiz da Silva
- Department of Biochemistry and Microbiology, Biosciences Institute, São Paulo State University (Campus Rio Claro), Rio Claro, Brazil
| | | | - Cláudio José Von Zuben
- Department of Zoology, Biosciences Institute, São Paulo State University (Campus Rio Claro), Rio Claro, Brazil
| | - Jonas Contiero
- Department of Biochemistry and Microbiology, Biosciences Institute, São Paulo State University (Campus Rio Claro), Rio Claro, Brazil
| | - Júlio César dos Santos
- Department of Biotechnology, Engineering School of Lorena, São Paulo University, Lorena, Brazil
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