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Elsaygh YA, Gouda MK, Elbahloul Y, Hakim MA, El Halfawy NM. Production and structural characterization of eco-friendly bioemulsifier SC04 from Saccharomyces cerevisiae strain MYN04 with potential applications. Microb Cell Fact 2023; 22:176. [PMID: 37679768 PMCID: PMC10485968 DOI: 10.1186/s12934-023-02186-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 08/21/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND Bioemulsifiers are natural or microbial-based products with the ability to emulsify hydrophobic compounds in water. These compounds are biodegradable, eco-friendly, and find applications in various industries. RESULTS Thirteen yeasts were isolated from different sources in Alexandria, Egypt, and evaluated for their potential to produce intracellular bioemulsifiers. One yeast, isolated from a local market in Egypt, showed the highest emulsification index (EI24) value. Through 26S rRNA sequencing, this yeast was identified as Saccharomyces cerevisiae strain MYN04. The growth kinetics of the isolate were studied, and after 36 h of incubation, the highest yield of cell dry weight (CDW) was obtained at 3.17 g/L, with an EI24 of 55.6%. Experimental designs were used to investigate the effects of culture parameters on maximizing bioemulsifier SC04 production and CDW. The study achieved a maximum EI24 of 79.0 ± 2.0%. Furthermore, the crude bioemulsifier was precipitated with 50% ethanol and purified using Sephadex G-75 gel filtration chromatography. Bioemulsifier SC04 was found to consist of 27.1% carbohydrates and 72.9% proteins. Structural determination of purified bioemulsifier SC04 was carried out using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX), high-performance liquid chromatography (HPLC), and nuclear magnetic resonance spectroscopy (NMR). FTIR spectroscopy revealed characteristic bands associated with carboxyl and hydroxyl groups of carbohydrates, as well as amine groups of proteins. HPLC analysis of monosaccharide composition detected the presence of mannose, galactose, and glucose. Physicochemical characterization of the fraction after gel filtration indicated that bioemulsifier SC04 is a high molecular weight protein-oligosaccharide complex. This bioemulsifier demonstrated stability at different pH values, temperatures, and salinities. At a concentration of 0.5 mg/mL, it exhibited 51.8% scavenging of DPPH radicals. Furthermore, in vitro cytotoxicity evaluation using the MTT assay revealed a noncytotoxic effect of SC04 against normal epithelial kidney cell lines. CONCLUSIONS This study presents a new eco-friendly bioemulsifier, named SC04, which exhibits significant emulsifying ability, antioxidant and anticancer properties, and stabilizing properties. These findings suggest that SC04 is a promising candidate for applications in the food, pharmaceutical, and industrial sectors.
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Affiliation(s)
- Yasmina A Elsaygh
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Moharam Bek, Alexandria, 21511, Egypt
| | - Mona K Gouda
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Moharam Bek, Alexandria, 21511, Egypt
| | - Yasser Elbahloul
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Moharam Bek, Alexandria, 21511, Egypt
| | | | - Nancy M El Halfawy
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Moharam Bek, Alexandria, 21511, Egypt.
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Das S, Das N, Choure K, Pandey P. Biodegradation of asphaltene by lipopeptide-biosurfactant producing hydrocarbonoclastic, crude oil degrading Bacillus spp. BIORESOURCE TECHNOLOGY 2023; 382:129198. [PMID: 37201870 DOI: 10.1016/j.biortech.2023.129198] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/20/2023]
Abstract
Asphaltene is the most recalcitrant compound in crude oil. Bacteria were isolated from crude oil contaminated soil and their efficiency for hydrocarbon degradation was determined using GC-MS and isolates were screened for biosurfactant production using FT-IR. Two Bacillus spp. having hydrocarbonoclastic and lipo-peptide biosurfactant-producing abilities were experimented for their asphaltene removal potential through oil removal efficiency (ORE%) and asphaltene degradation efficiency (ADE%). B. thuringeinsis SSL1 and B. cereus SSL3 could degrade 76.4% and 67.4% of asphaltene (20gL-1), in vitro, respectively, which is much higher than previous reports. B. thuringiensis SSL1 is recommended for effective breakdown of asphaltene, total petroleum hydrocarbon, and polyaromatic hydrocarbon degradation, aided by its biosurfactants, which is useful for crude oil cleanup. Biosurfactants are important for enhancing the availability of hydrophobic hydrocarbons to bacteria, which is beneficial for efficient crude oil remediation. These findings could lead to more effective strategies for complete clean-up of crude oil pollution.
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Affiliation(s)
- Sandeep Das
- Soil and Environment Microbiology Laboratory, Department of Microbiology, Assam University, Silchar 788011, Assam, India
| | - Nandita Das
- Soil and Environment Microbiology Laboratory, Department of Microbiology, Assam University, Silchar 788011, Assam, India
| | - Kamlesh Choure
- Department of Biotechnology, AKS University, Satna 485001, Madhya Pradesh, India
| | - Piyush Pandey
- Soil and Environment Microbiology Laboratory, Department of Microbiology, Assam University, Silchar 788011, Assam, India.
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3
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Devale A, Sawant R, Pardesi K, Perveen K, Khanam MNI, Shouche Y, Mujumdar S. Production and characterization of bioemulsifier by Parapedobacter indicus. Front Microbiol 2023; 14:1111135. [PMID: 36876100 PMCID: PMC9978354 DOI: 10.3389/fmicb.2023.1111135] [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: 11/29/2022] [Accepted: 01/09/2023] [Indexed: 02/18/2023] Open
Abstract
The current study evaluated Parapedobacter indicus MCC 2546 for its potential to produce a bioemulsifier (BE). Screening methods performed for BE production by P. indicus MCC 2546 showed good lipase activity, positive drop collapse test, and oil-spreading activity. Furthermore, it showed maximum emulsification activity (225 EU/ml) and emulsification index (E24 50%) at 37°C in Luria Bertani broth at 72 h with olive oil as a substrate. The optimal pH and NaCl concentration for maximum emulsification activity were 7 and 1%, respectively. P. indicus MCC 2546 lowered the surface tension of the culture medium from 59.65 to 50.42 ± 0.78 mN/m. BE produced was composed of 70% protein and 30% carbohydrate, which showed the protein-polysaccharide nature of the BE. Furthermore, Fourier transform infrared spectroscopy analysis confirmed the same. P. indicus MCC 2546 showed a catecholate type of siderophore production. This is the first report on BE and siderophore production by the genus Parapedobacter.
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Affiliation(s)
- Anushka Devale
- Department of Microbiology, P.E.S. Modern College of Arts, Science and Commerce (Autonomous), Pune, India
| | - Rupali Sawant
- Department of Microbiology, P.E.S. Modern College of Arts, Science and Commerce (Autonomous), Pune, India
| | - Karishma Pardesi
- Department of Microbiology, Savitribai Phule Pune University, Pune, India
| | - Kahkashan Perveen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mehrun NIsha Khanam
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea
| | - Yogesh Shouche
- School of Arts and Sciences, Azim Premji University, Bengaluru, India
| | - Shilpa Mujumdar
- Department of Microbiology, P.E.S. Modern College of Arts, Science and Commerce (Autonomous), Pune, India
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4
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Maldonado Desena F, De la Cruz Ceferino N, Gómez Cornelio S, Alvarez Villagomez C, Herrera Candelario JL, De la Rosa García S. Bacteria Halotolerant from Karst Sinkholes as a Source of Biosurfactants and Bioemulsifiers. Microorganisms 2022; 10:microorganisms10071264. [PMID: 35888984 PMCID: PMC9319531 DOI: 10.3390/microorganisms10071264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/12/2022] [Accepted: 06/16/2022] [Indexed: 11/16/2022] Open
Abstract
Halotolerant bacteria with biosurfactant (BS) and bioemulsifiers (BE) activity can coexist in Karstic sinkholes with marine influence. Two sinkholes in the Yucatan peninsula were selected to isolate bacteria with BE and BS activity stable in NaCl. The optimal time, the effect of nitrogen and carbon source in the medium, and the conditions (agitation, pH and salinity) for the production of BS and BE compounds in planktonic and sessile (stimulate the formation of biofilms in cell roller) culture were determined. Eighty strains showed the highest emulsification activity (EI24 ≥ 50%) and drop-collapse ≥ 4 mm. 87% of the strains are moderately halotolerant, and 21% bordered the limit of extreme halotolerance. Twenty-four strains maintained or improved their BS and BE activity under salinity conditions at 5% and 10%, being the most active genera Bacillus, Paenibacillus and Lysinibacillus, identified by sequencing of the 16S rRNA gene. The results show that the nitrogen source positively affects the BS and BE activity, regardless of the type of culture. The sessile culture markedly stimulated BS activity with significant differences. However, we did not find a greater influence on the culture conditions. The results suggest that halotolerant bacteria from sinkholes could be implemented in bioremediation and other biotechnological applications.
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Affiliation(s)
- Félix Maldonado Desena
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carr. Villahermosa-Cardenas Km 0.5, Ranchería Emialiano Zapata, Villahermosa 86150, Tabasco, Mexico; (F.M.D.); (N.D.l.C.C.); (C.A.V.); (J.L.H.C.)
| | - Navila De la Cruz Ceferino
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carr. Villahermosa-Cardenas Km 0.5, Ranchería Emialiano Zapata, Villahermosa 86150, Tabasco, Mexico; (F.M.D.); (N.D.l.C.C.); (C.A.V.); (J.L.H.C.)
| | - Sergio Gómez Cornelio
- Ingeniería en Biotecnología, Universidad Politécnica del Centro, Carretera Federal, Villahermosa-Teapa Km 22.5, Tumbulushal Centro, Villahermosa 86290, Tabasco, Mexico;
| | - Carina Alvarez Villagomez
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carr. Villahermosa-Cardenas Km 0.5, Ranchería Emialiano Zapata, Villahermosa 86150, Tabasco, Mexico; (F.M.D.); (N.D.l.C.C.); (C.A.V.); (J.L.H.C.)
| | - José Luis Herrera Candelario
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carr. Villahermosa-Cardenas Km 0.5, Ranchería Emialiano Zapata, Villahermosa 86150, Tabasco, Mexico; (F.M.D.); (N.D.l.C.C.); (C.A.V.); (J.L.H.C.)
| | - Susana De la Rosa García
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carr. Villahermosa-Cardenas Km 0.5, Ranchería Emialiano Zapata, Villahermosa 86150, Tabasco, Mexico; (F.M.D.); (N.D.l.C.C.); (C.A.V.); (J.L.H.C.)
- Correspondence:
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Singh V, Waris Z, Banat IM, Saha S, Padmanabhan P. Assessment of Rheological Behaviour of Water-in-Oil Emulsions Mediated by Glycolipid Biosurfactant Produced by Bacillus megaterium SPSW1001. Appl Biochem Biotechnol 2022; 194:1310-1326. [PMID: 34694553 DOI: 10.1007/s12010-021-03717-3] [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: 04/27/2021] [Accepted: 10/08/2021] [Indexed: 10/20/2022]
Abstract
A screening programme using mineral salt medium supplemented with n-hexadecane resulted in isolating a Bacillus megaterium SPSW1001 which was capable of producing surface active molecules lowering culture medium surface tension to 27.43 ± 0.029 mN/m and interfacial tension to 0.38 ± 0.03 mN/m at 72 h and an emulsification index (E24) (85.63%). The biosurfactant product was further used to assess its effects on the rheological characteristics of water-in-oil emulsion prepared with engine oil. Structural characterization of the biosurfactant product by FTIR revealed a C-O-C stretch in sugar moiety and ester carbonyl linkage group between sugar and fatty acids, respectively, while mass spectral analysis revealed its glycolipid nature, with an m/z value of 662.44. The fluid behaviour of water-in-oil emulsion showed a non-Newtonian viscoelastic dilatant flow after yielding exemplified appropriately by Herschel-Bulkley model with 100% confidence of fit. The present study is significant in formulation and handling, processing, and transport of emulsion and in understanding flocculation characteristics.
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Affiliation(s)
- Varsha Singh
- Department of Bio-Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Zairah Waris
- Department of Bio-Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Ibrahim M Banat
- School of Biomedical Sciences, Faculty of Life and Health Sciences, University of Ulster, Coleraine, BT52 1SA, Northern Ireland, UK
| | - Sriparna Saha
- Department of Computer Science and Engineering, Indian Institute of Technology, Patna, Bihar, 801106, India
| | - Padmini Padmanabhan
- Department of Bio-Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India.
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Floris R, Sanna G, Mura L, Fiori M, Culurgioni J, Diciotti R, Rizzo C, Lo Giudice A, Laganà P, Fois N. Isolation and Identification of Bacteria with Surface and Antibacterial Activity from the Gut of Mediterranean Grey Mullets. Microorganisms 2021; 9:microorganisms9122555. [PMID: 34946156 PMCID: PMC8703445 DOI: 10.3390/microorganisms9122555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 11/27/2022] Open
Abstract
Fish gut represents a peculiar ecological niche where bacteria can transit and reside to play vital roles by producing bio-compounds with nutritional, immunomodulatory and other functions. This complex microbial ecosystem reflects several factors (environment, feeding regimen, fish species, etc.). The objective of the present study was the identification of intestinal microbial strains able to produce molecules called biosurfactants (BSs), which were tested for surface and antibacterial activity in order to select a group of probiotic bacteria for aquaculture use. Forty-two bacterial isolates from the digestive tracts of twenty Mediterranean grey mullets were screened for testing emulsifying (E-24), surface and antibiotic activities. Fifty percent of bacteria, ascribed to Pseudomonas aeruginosa, Pseudomonas sp., P. putida and P. anguilliseptica, P. stutzeri, P. protegens and Enterobacter ludwigii were found to be surfactant producers. Of the tested strains, 26.6% exhibited an antibacterial activity against Staphylococcus aureus (10.0 ± 0.0–14.5 ± 0.7 mm inhibition zone), and among them, 23.3% of isolates also showed inhibitory activity vs. Proteus mirabilis (10.0 ± 0.0–18.5 ± 0.7 mm inhibition zone) and 6.6% vs. Klebsiella pneumoniae (11.5 ± 0.7–17.5 ± 0.7 mm inhibition zone). According to preliminary chemical analysis, the bioactive compounds are suggested to be ascribed to the class of glycolipids. This works indicated that fish gut is a source of bioactive compounds which deserves to be explored.
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Affiliation(s)
- Rosanna Floris
- AGRIS-Sardegna, Agricultural Research Agency of Sardinia, Bonassai, 07100 Sassari, Italy; (G.S.); (L.M.); (M.F.); (J.C.); (R.D.); (N.F.)
- Correspondence: ; Tel.: +39-079-284-2331
| | - Gabriele Sanna
- AGRIS-Sardegna, Agricultural Research Agency of Sardinia, Bonassai, 07100 Sassari, Italy; (G.S.); (L.M.); (M.F.); (J.C.); (R.D.); (N.F.)
| | - Laura Mura
- AGRIS-Sardegna, Agricultural Research Agency of Sardinia, Bonassai, 07100 Sassari, Italy; (G.S.); (L.M.); (M.F.); (J.C.); (R.D.); (N.F.)
| | - Myriam Fiori
- AGRIS-Sardegna, Agricultural Research Agency of Sardinia, Bonassai, 07100 Sassari, Italy; (G.S.); (L.M.); (M.F.); (J.C.); (R.D.); (N.F.)
| | - Jacopo Culurgioni
- AGRIS-Sardegna, Agricultural Research Agency of Sardinia, Bonassai, 07100 Sassari, Italy; (G.S.); (L.M.); (M.F.); (J.C.); (R.D.); (N.F.)
| | - Riccardo Diciotti
- AGRIS-Sardegna, Agricultural Research Agency of Sardinia, Bonassai, 07100 Sassari, Italy; (G.S.); (L.M.); (M.F.); (J.C.); (R.D.); (N.F.)
| | - Carmen Rizzo
- Stazione Zoologica Anton Dohrn-Ecosustainable Marine Biotechnology Department, Sicily Marine Centre, Villa Pace, Contrada Porticatello 29, 98167 Messina, Italy;
| | - Angelina Lo Giudice
- Institute of Polar Sciences, National Research Council (ISP-CNR), 98122 Messina, Italy;
| | - Pasqualina Laganà
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Torre Biologica 3p, AOU ‘G. Martino, Via C. Valeria, s.n.c., 98125 Messina, Italy;
| | - Nicola Fois
- AGRIS-Sardegna, Agricultural Research Agency of Sardinia, Bonassai, 07100 Sassari, Italy; (G.S.); (L.M.); (M.F.); (J.C.); (R.D.); (N.F.)
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Adetunji AI, Olaniran AO. Production and potential biotechnological applications of microbial surfactants: An overview. Saudi J Biol Sci 2020; 28:669-679. [PMID: 33424354 PMCID: PMC7783833 DOI: 10.1016/j.sjbs.2020.10.058] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 10/15/2020] [Accepted: 10/26/2020] [Indexed: 12/26/2022] Open
Abstract
Microbial surfactants are amphipathic molecules that consist of hydrophilic and hydrophobic domains, which allow partition of two fluid phases of varying degree of polarity. They are classified into two main groups: bioemulsifier and biosurfactant, depending on their molecular weight. Microbial surfactants occur in various categories according to their chemical nature and producing organisms. These biomolecules are produced by diverse groups of microorganisms including fungi, bacteria, and yeasts. Their production is significantly influenced by substrate type, fermentation technology and microbial strains. Owing to inherent multifunctional properties and assorted synthetic aptitude of the microbes, microbial surfactants are mostly preferred than their chemical counterparts for various industrial and biomedical applications including bioremediation, oil recovery; as supplements in laundry formulations and as emulsion-stabilizers in food and cosmetic industries as well as therapeutic agents in medicine. The present review discusses on production of microbial surfactants as promising and alternative broad-functional biomolecules for various biotechnological applications.
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Key Words
- %, Percent
- Akt, Threonine protein kinase
- Bioemulsifiers
- Biosurfactants
- Biotechnological applications
- CMC, Critical micelle concentration
- CTAB, Cethyltrimethylammonium bromide
- Da, Dalton
- E24, Emulsification index
- IC50, Half-maximal inhibitory concentration
- KDa, Kilodalton
- MBC, Minimum bactericidal concentration
- MIC, Minimum inhibitory concentration
- Microbial surfactants
- SACs, Surface active compounds
- ST, Surface tension
- Surface-active compounds
- g/L, Gram per litre
- h, Hour
- mL, Millilitre
- mN/M, Millinewton per metre
- mg/L, Milligram per liter
- mg/mL, Milligram per milliliter
- nm, Nanometre
- sec, Second
- v/v, volume per volume
- µL, Microlitre
- µg/mL, Microgram per milliliter
- µm, Micrometre
- ˚C, Degree Celsius
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Affiliation(s)
- Adegoke Isiaka Adetunji
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville campus), Private Bag X54001, Durban 4000, South Africa
| | - Ademola Olufolahan Olaniran
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville campus), Private Bag X54001, Durban 4000, South Africa
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Elufisan TO, Rodríguez-Luna IC, Oyedara OO, Sánchez-Varela A, Hernández-Mendoza A, Dantán Gonzalez E, Paz-González AD, Muhammad K, Rivera G, Villalobos-Lopez MA, Guo X. The Polycyclic Aromatic Hydrocarbon (PAH) degradation activities and genome analysis of a novel strain Stenotrophomonas sp. Pemsol isolated from Mexico. PeerJ 2020; 8:e8102. [PMID: 31934497 PMCID: PMC6951288 DOI: 10.7717/peerj.8102] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 10/25/2019] [Indexed: 11/20/2022] Open
Abstract
Background Stenotrophomonas are ubiquitous gram-negative bacteria, which can survive in a wide range of environments. They can use many substances for their growth and are known to be intrinsically resistant to many antimicrobial agents. They have been tested for biotechnological applications, bioremediation, and production of antimicrobial agents. Method Stenotrophomonas sp. Pemsol was isolated from a crude oil contaminated soil. The capability of this isolate to tolerate and degrade polycyclic aromatic hydrocarbons (PAH) such as anthraquinone, biphenyl, naphthalene, phenanthrene, phenanthridine, and xylene was evaluated in Bushnell Hass medium containing PAHs as the sole carbon sources. The metabolites formed after 30-day degradation of naphthalene by Pemsol were analyzed using Fourier Transform Infra-red Spectroscopic (FTIR), Ultra-Performance Liquid Chromatography-Mass Spectrometry (UPLC-MS) and Gas Chromatography-Mass Spectrometry (GC-MS). The genome of Pemsol was also sequenced and analyzed. Results Anthraquinone, biphenyl, naphthalene, phenanthrene, and phenanthridine except xylene can be used as sole carbon sources for Pemsol’s growth in Bushnell Hass medium. The degradation of naphthalene at a concentration of 1 mg/mL within 30 days was tested. A newly formed catechol peak and the disappearance of naphthalene peak detected on the UPLC-MS, and GC-MS analyses spectra respectively confirmed the complete degradation of naphthalene. Pemsol does not produce biosurfactant and neither bio-emulsify PAHs. The whole genome was sequenced and assembled into one scaffold with a length of 4,373,402 bp. A total of 145 genes involved in the degradation of PAHs were found in its genome, some of which are Pemsol-specific as compared with other 11 Stenotrophomonas genomes. Most specific genes are located on the genomic islands. Stenotrophomonas sp. Pemsol’s possession of few genes that are associated with bio-emulsification gives the genetic basis for its inability to bio-emulsify PAH. A possible degradation pathway for naphthalene in Pemsol was proposed following the analysis of Pemsol’s genome. ANI and GGDH analysis indicated that Pemsol is likely a new species of Stenotrophomonas. It is the first report on a complete genome sequence analysis of a PAH-degrading Stenotrophomonas. Stenotrophomonas sp. Pemsol possesses features that make it a good bacterium for genetic engineering and will be an excellent tool for the remediation of crude oil or PAH-contaminated soil.
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Affiliation(s)
- Temidayo O Elufisan
- Laboratorio de Biotecnologia Genomica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Mexico, Reynosa, Tamaulipas, Mexico.,Science Policy and Innovation Studies (SPIS), National Center for Technology Management Obafemi Awolowo University campus Ile-Ife, Ile-Ife, Osun, Nigeria
| | - Isabel C Rodríguez-Luna
- Laboratorio de Biotecnologia Genomica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Mexico, Reynosa, Tamaulipas, Mexico
| | | | - Alejandro Sánchez-Varela
- Laboratorio de Biotecnologia Genomica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Mexico, Reynosa, Tamaulipas, Mexico
| | - Armando Hernández-Mendoza
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos (UAEM), Cuernavaca, Morelos, Mexico
| | - Edgar Dantán Gonzalez
- Laboratorio de Estudios Ecogenómicos (UAEM), Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico
| | - Alma D Paz-González
- Laboratorio de Biotecnologia Famaceutica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Mexico, Reynosa, Tamaulipas, Mexico
| | - Kashif Muhammad
- Laboratorio de Biotecnologia Famaceutica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Mexico, Reynosa, Tamaulipas, Mexico
| | - Gildardo Rivera
- Laboratorio de Biotecnologia Famaceutica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Mexico, Reynosa, Tamaulipas, Mexico
| | | | - Xianwu Guo
- Laboratorio de Biotecnologia Genomica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Mexico, Reynosa, Tamaulipas, Mexico
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Dikit P, Maneerat S, Saimmai A. The Effective Emulsifying Property of Biosurfactant–Producing Marinobacter hydrocarbonoclasticus ST1 Obtained from Palm Oil Contaminated Sites. APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819060061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Pathiraja G, Egodawatta P, Goonetilleke A, Te'o VSJ. Solubilization and degradation of polychlorinated biphenyls (PCBs) by naturally occurring facultative anaerobic bacteria. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:2197-2207. [PMID: 30326452 DOI: 10.1016/j.scitotenv.2018.10.127] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 06/08/2023]
Abstract
A combination of solubilization and degradation is essential for the bioremediation of environments contaminated with complex polychlorinated biphenyls (PCB) mixtures. However, the application of facultative anaerobic microorganisms that can both solubilize and breakdown hydrophobic PCBs in aqueous media under both anaerobic and aerobic conditions, has not been reported widely. In this comprehensive study, four bacteria discovered from soil and sediments and identified as Achromobacter sp. NP03, Ochrobactrum sp. NP04, Lysinibacillus sp. NP05 and Pseudomonas sp. NP06, were investigated for their PCB degradation efficiencies. Aroclor 1260 (50 mg/L), a commercial and highly chlorinated PCB mixture was exposed to the different bacterial strains under aerobic, anaerobic and two stage anaerobic-aerobic conditions. The results confirmed that all four facultative anaerobic microorganisms were capable of degrading PCBs under both anaerobic and aerobic conditions. The highest chlorine removal (9.16 ± 0.8 mg/L), PCB solubility (14.7 ± 0.93 mg/L) and growth rates as OD600 (2.63 ± 0.22) were obtained for Lysinibacillus sp. NP05 under two stage anaerobic-aerobic conditions. The presence of biosurfactants in the culture medium suggested their role in solubility of PCBs. Overall, the positive results obtained suggest that high PCB hydrolysis can be achieved using suitable facultative anaerobic microorganisms under two stage anaerobic-aerobic conditions. Such facultative microbial strains capable of solubilization as well as degradation of PCBs under both anaerobic and aerobic conditions provide an efficient and effective alternative to commonly used bioaugmentation methods utilizing specific obligate aerobic and anaerobic microorganisms, separately.
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Affiliation(s)
- Gathanayana Pathiraja
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology (QUT), Brisbane 4001, Queensland, Australia.
| | - Prasanna Egodawatta
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology (QUT), Brisbane 4001, Queensland, Australia.
| | - Ashantha Goonetilleke
- School of Civil Engineering and Built Environment, Queensland University of Technology (QUT), Brisbane 4001, Queensland, Australia.
| | - Valentino S Junior Te'o
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology (QUT), Brisbane 4001, Queensland, Australia.
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11
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Lee DW, Lee H, Kwon BO, Khim JS, Yim UH, Kim BS, Kim JJ. Biosurfactant-assisted bioremediation of crude oil by indigenous bacteria isolated from Taean beach sediment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 241:254-264. [PMID: 29807284 DOI: 10.1016/j.envpol.2018.05.070] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 05/11/2018] [Accepted: 05/21/2018] [Indexed: 06/08/2023]
Abstract
Crude oil and its derivatives are considered as one group of the most pervasive environmental pollutants in marine environments. Bioremediation using oil-degrading bacteria has emerged as a promising green cleanup alternative in more recent years. The employment of biosurfactant-producing and hydrocarbon-utilizing indigenous bacteria enhances the effectiveness of bioremediation by making hydrocarbons bioavailable for degradation. In this study, the best candidates of biosurfactant-producing indigenous bacteria were selected by screening of biochemical tests. The selected bacteria include Bacillus algicola (003-Phe1), Rhodococcus soli (102-Na5), Isoptericola chiayiensis (103-Na4), and Pseudoalteromonas agarivorans (SDRB-Py1). In general, these isolated species caused low surface tension values (33.9-41.3 mN m-1), high oil spreading (1.2-2.4 cm), and hydrocarbon emulsification (up to 65%) warranting active degradation of hydrocarbons. FT-IR and LC-MS analyses indicated that the monorhamnolipid (Rha-C16:1) and dirhamnolipid (Rha-Rha-C6-C6:1) were commonly produced by the bacteria as potent biosurfactants. The residual crude oil after the biodegradation test was quantitated using GC-MS analysis. The bacteria utilized crude oil as their sole carbon source while the amount of residual crude oil significantly decreased. In addition the cell-free broth containing biosurfactants produced by bacterial strains significantly desorbed crude oil in oil-polluted marine sediment. The selected bacteria might hold additional capacity in crude oil degradation. Biosurfactant-producing indigenous bacteria therefore degrade crude oil hydrocarbon compounds, produce biosurfactants that can increase the emulsification of crude oil and are thus more conducive to the degradation of crude oil.
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Affiliation(s)
- Dong Wan Lee
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Hanbyul Lee
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Bong-Oh Kwon
- School of Earth and Environmental Science & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Jong Seong Khim
- School of Earth and Environmental Science & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea.
| | - Un Hyuk Yim
- Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea
| | - Beom Seok Kim
- Division of Biotechnology, College of Life Science & Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Jae-Jin Kim
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul 02841, Republic of Korea.
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12
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Alvarez VM, Jurelevicius D, Serrato RV, Barreto-Bergter E, Seldin L. Chemical characterization and potential application of exopolysaccharides produced by Ensifer adhaerens JHT2 as a bioemulsifier of edible oils. Int J Biol Macromol 2018; 114:18-25. [DOI: 10.1016/j.ijbiomac.2018.03.063] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 03/09/2018] [Accepted: 03/13/2018] [Indexed: 11/27/2022]
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13
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Mohanram R, Jagtap C, Kumar P. Isolation, screening, and characterization of surface-active agent-producing, oil-degrading marine bacteria of Mumbai Harbor. MARINE POLLUTION BULLETIN 2016; 105:131-138. [PMID: 26912197 DOI: 10.1016/j.marpolbul.2016.02.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 01/27/2016] [Accepted: 02/15/2016] [Indexed: 06/05/2023]
Abstract
Diverse marine bacterial species predominantly found in oil-polluted seawater produce diverse surface-active agents. Surface-active agents produced by bacteria are classified into two groups based on their molecular weights, namely biosurfactants and bioemulsifiers. In this study, surface-active agent-producing, oil-degrading marine bacteria were isolated using a modified Bushnell-Haas medium with high-speed diesel as a carbon source from three oil-polluted sites of Mumbai Harbor. Surface-active agent-producing bacterial strains were screened using nine widely used methods. The nineteen bacterial strains showed positive results for more than four surface-active agent screening methods; further, these strains were characterized using biochemical and nucleic acid sequencing methods. Based on the results, the organisms belonged to the genera Acinetobacter, Alcanivorax, Bacillus, Comamonas, Chryseomicrobium, Halomonas, Marinobacter, Nesterenkonia, Pseudomonas, and Serratia. The present study confirmed the prevalence of surface-active agent-producing bacteria in the oil-polluted waters of Mumbai Harbor.
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Affiliation(s)
- Rajamani Mohanram
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
| | - Chandrakant Jagtap
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
| | - Pradeep Kumar
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
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Uzoigwe C, Burgess JG, Ennis CJ, Rahman PKSM. Bioemulsifiers are not biosurfactants and require different screening approaches. Front Microbiol 2015; 6:245. [PMID: 25904897 PMCID: PMC4387539 DOI: 10.3389/fmicb.2015.00245] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/13/2015] [Indexed: 11/13/2022] Open
Affiliation(s)
- Chibuzo Uzoigwe
- Technology Futures Institute, School of Science and Engineering, Teesside University Middlesbrough, UK
| | - J Grant Burgess
- School of Marine Science and Technology, Newcastle University Newcastle Upon Tyne, UK
| | - Christopher J Ennis
- Technology Futures Institute, School of Science and Engineering, Teesside University Middlesbrough, UK
| | - Pattanathu K S M Rahman
- Technology Futures Institute, School of Science and Engineering, Teesside University Middlesbrough, UK
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