1
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D'Incau E, Ouvrard S, Devers-Lamrani M, Jeandel C, Mohamed CE, Henry S. Biodegradation of a complex hydrocarbon mixture and biosurfactant production by Burkholderia thailandensis E264 and an adapted microbial consortium. Biodegradation 2024; 35:719-737. [PMID: 38517619 DOI: 10.1007/s10532-024-10073-6] [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: 02/03/2023] [Accepted: 02/12/2024] [Indexed: 03/24/2024]
Abstract
Bioremediation is considered to be an effective treatment for hydrocarbon removal from polluted soils. However, the effectiveness of this treatment is often limited by the low availability of targeted contaminants. Biosurfactants produced by some microorganisms can increase organic compound solubility and might then overcome this limitation. Two different inocula producers of biosurfactants (Burkholderia thailandensis E264 and SHEMS1 microbial consortium isolated from a hydrocarbon-contaminated soil) were incubated in Bushnell-Haas medium supplemented with hydrocarbons to investigate their biodegradation potential. Experimental results showed their ability to degrade 9.1 and 6.1% of hydrocarbons respectively after 65 days of incubation with an initial total hydrocarbon concentration of 16 g L-1. The biodegradation was more effective for the light and medium fractions (C10 to C36). B. thailandensis and SHEMS1 consortium produced surfactants after 14 days of culture during the stationary phase with hydrocarbons as the sole carbon and energy source. However, biosurfactant production did not appear to directly increase hydrocarbon degradation efficiency. The complexity and recalcitrance of hydrocarbon mixture used in this study appeared to continue to limit its biodegradation even in the presence of biosurfactants. In conclusion, B. thailandensis and SHEMS1 consortium can degrade recalcitrant hydrocarbon compounds and are therefore good candidates for the bioremediation of environments polluted by total hydrocarbons.
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Affiliation(s)
| | | | - Marion Devers-Lamrani
- Agroécologie, AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche-Comté, Dijon, France
| | | | | | - Sonia Henry
- Université de Lorraine, INRAE, LSE, 54000, Nancy, France
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2
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Brito HA, Napp AP, Pereira E, Bach E, Borowski JVB, Passaglia LMP, Melo VMM, Moreira R, Foster EJ, Lopes FC, Vainstein MH. Enhanced low-cost lipopeptide biosurfactant production by Bacillus velezensis from residual glycerin. Bioprocess Biosyst Eng 2024:10.1007/s00449-024-03051-y. [PMID: 38916653 DOI: 10.1007/s00449-024-03051-y] [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: 01/18/2024] [Accepted: 06/17/2024] [Indexed: 06/26/2024]
Abstract
Biosurfactants (BSFs) are molecules produced by microorganisms from various carbon sources, with applications in bioremediation and petroleum recovery. However, the production cost limits large-scale applications. This study optimized BSFs production by Bacillus velezensis (strain MO13) using residual glycerin as a substrate. The spherical quadratic central composite design (CCD) model was used to standardize carbon source concentration (30 g/L), temperature (34 °C), pH (7.2), stirring (239 rpm), and aeration (0.775 vvm) in a 5-L bioreactor. Maximum BSFs production reached 1527.6 mg/L of surfactins and 176.88 mg/L of iturins, a threefold increase through optimization. Microbial development, substrate consumption, concentration of BSFs, and surface tension were also evaluated on the bioprocess dynamics. Mass spectrometry Q-TOF-MS identified five surfactin and two iturin isoforms produced by B. velezensis MO13. This study demonstrates significant progress on BSF production using industrial waste as a microbial substrate, surpassing reported concentrations in the literature.
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Affiliation(s)
- Henrique A Brito
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
| | - Amanda P Napp
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
| | - Evandro Pereira
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
| | - Evelise Bach
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
- Departamento de Biofísica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
| | - João V B Borowski
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
| | - Luciane M P Passaglia
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
| | - Vania M M Melo
- Laboratório de Ecologia Microbiana e Biotecnologia, Departamento de Biologia, Universidade Federal Do Ceará, Fortaleza, Brasil
| | - Raphael Moreira
- Institute for Applied and Physical Chemistry, University of Bremen, 28359, Bremen, Germany
| | - E Johan Foster
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, Canada
| | - Fernanda C Lopes
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
- Departamento de Biofísica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil
| | - Marilene H Vainstein
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil.
- Departamento de Biologia Molecular e Biotecnologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil.
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3
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Song JZ, Wang CQ, Yu GS, Sun Z, Wu AH, Chi ZM, Liu GL. Simultaneous production of biosurfactant and extracellular unspecific peroxygenases by Moesziomyces aphidis XM01 enables an efficient strategy for crude oil degradation. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134437. [PMID: 38691934 DOI: 10.1016/j.jhazmat.2024.134437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 04/03/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
Crude oil is a hazardous pollutant that poses significant and lasting harm to human health and ecosystems. In this study, Moesziomyces aphidis XM01, a biosurfactant mannosylerythritol lipids (MELs)-producing yeast, was utilized for crude oil degradation. Unlike most microorganisms relying on cytochrome P450, XM01 employed two extracellular unspecific peroxygenases, MaUPO.1 and MaUPO.2, with preference for polycyclic aromatic hydrocarbons (PAHs) and n-alkanes respectively, thus facilitating efficient crude oil degradation. The MELs produced by XM01 exhibited a significant emulsification activity of 65.9% for crude oil and were consequently supplemented in an "exogenous MELs addition" strategy to boost crude oil degradation, resulting in an optimal degradation ratio of 72.3%. Furthermore, a new and simple "pre-MELs production" strategy was implemented, achieving a maximum degradation ratio of 95.9%. During this process, the synergistic up-regulation of MaUPO.1, MaUPO.1 and the key MELs synthesis genes contributed to the efficient degradation of crude oil. Additionally, the phylogenetic and geographic distribution analysis of MaUPO.1 and MaUPO.1 revealed their wide occurrence among fungi in Basidiomycota and Ascomycota, with high transcription levels across global ocean, highlighting their important role in biodegradation of crude oil. In conclusion, M. aphidis XM01 emerges as a novel yeast for efficient and eco-friendly crude oil degradation.
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Affiliation(s)
- Ji-Zheng Song
- MOE Key Laboratory of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Chu-Qi Wang
- MOE Key Laboratory of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Guan-Shuo Yu
- MOE Key Laboratory of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Zhe Sun
- MOE Key Laboratory of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Ai-Hua Wu
- MOE Key Laboratory of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Zhen-Ming Chi
- MOE Key Laboratory of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266003, China
| | - Guang-Lei Liu
- MOE Key Laboratory of Evolution and Marine Biodiversity, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Center for Ocean Carbon Neutrality, Ocean University of China, Qingdao 266003, China.
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4
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Dohare S, Rawat HK, Bhargava Y, Kango N. Characterization of Diesel Degrading Indigenous Bacterial Strains, Acinetobacter pittii and Pseudomonas aeruginosa, Isolated from Oil Contaminated Soils. Indian J Microbiol 2024; 64:749-757. [PMID: 39011005 PMCID: PMC11246406 DOI: 10.1007/s12088-024-01317-3] [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: 12/13/2023] [Accepted: 05/20/2024] [Indexed: 07/17/2024] Open
Abstract
In this study, 13 diesel degrading bacteria were isolated from the oil contaminated soils and the promising strains identified as Acinetobacter pittii ED1 and Pseudomonas aeruginosa BN were evaluated for their diesel degrading capabilities. These strains degraded the diesel optimally at 30 °C, pH 7.0 and 1% diesel concentration. Both the strains produced biofilm at 1% diesel concentration indicating their ability to tolerate diesel induced abiotic stress. Gravimetric analysis of the spent medium after 7 days of incubation showed that A. pittii ED1 and P. aeruginosa BN degraded 68.61% and 76% diesel, respectively, while biodegradation reached more than 90% after 21 days. Fourier Transform Infrared (FTIR) analysis of the degraded diesel showed 1636.67 cm-1 (C=C stretch, N-H bond) peak corresponding to alkenes and primary amines, while GC-TOF-MS analysis showed decline in hydrocarbon intensities after 7 days of incubation. The present study revealed that newly isolated A. pittii ED1 and P. aeruginosa BN were able to degrade diesel hydrocarbons (C11-C18, and C19-C24) efficiently and have potential for bioremediation of the oil-contaminated sites. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-024-01317-3.
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Affiliation(s)
- Sonam Dohare
- Department of Microbiology, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003 India
| | - Hemant Kumar Rawat
- Department of Microbiology, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003 India
| | - Yogesh Bhargava
- Department of Microbiology, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003 India
| | - Naveen Kango
- Department of Microbiology, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003 India
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5
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Mukadam H, Gaikwad SV, Kutty NN, Gaikwad VD. Bioformulation of Bacillus proteolyticus MITWPUB1 and its biosurfactant to control the growth of phytopathogen Sclerotium rolfsii for the crop Brassica juncea var local, as a sustainable approach. Front Bioeng Biotechnol 2024; 12:1362679. [PMID: 38707507 PMCID: PMC11066288 DOI: 10.3389/fbioe.2024.1362679] [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: 12/28/2023] [Accepted: 03/13/2024] [Indexed: 05/07/2024] Open
Abstract
Bacillus proteolyticus MITWPUB1 is a potential producer of biosurfactants (BSs), and the organism is also found to be a producer of plant growth promoting traits, such as hydrogen cyanide and indole acetic acid (IAA), and a solubilizer of phosphate. The BSs were reportedly a blend of two classes, namely glycolipids and lipopeptides, as found by thin layer chromatography and Fourier-transform infrared spectroscopy analysis. Furthermore, semi-targeted metabolite profiling via liquid chromatography mass spectroscopy revealed the presence of phospholipids, lipopeptides, polyamines, IAA derivatives, and carotenoids. The BS showed dose-dependent antagonistic activity against Sclerotium rolfsii; scanning electron microscopy showed the effects of the BS on S. rolfsii in terms of mycelial deformations and reduced branching patterns. In vitro studies showed that the application of B. proteolyticus MITWPUB1 and its biosurfactant to seeds of Brassica juncea var local enhanced the seed germination rate. However, sawdust-carrier-based bioformulation with B. proteolyticus MITWPUB1 and its BS showed increased growth parameters for B. juncea var L. This study highlights a unique bioformulation combination that controls the growth of the phytopathogen S. rolfsii and enhances the plant growth of B. juncea var L. Bacillus proteolyticus MITWPUB1 was also shown for the first time to be a prominent BS producer with the ability to control the growth of the phytopathogen S. rolfsii.
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Affiliation(s)
- Humaira Mukadam
- Department of Biosciences and Technology, School of Science and Environment Studies, Faculty of Science and Health Science, Dr. Vishwanath Karad MIT World Peace University, Pune, Maharashtra, India
| | - Shikha V. Gaikwad
- Department of Biosciences and Technology, School of Science and Environment Studies, Faculty of Science and Health Science, Dr. Vishwanath Karad MIT World Peace University, Pune, Maharashtra, India
| | - Nithya N. Kutty
- Department of Biosciences and Technology, School of Science and Environment Studies, Faculty of Science and Health Science, Dr. Vishwanath Karad MIT World Peace University, Pune, Maharashtra, India
| | - Vikrant D. Gaikwad
- Department of Chemical Engineering, School of Engineering and Technology, Faculty of Engineering, Dr. Vishwanath Karad MIT World Peace University, Pune, Maharashtra, India
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6
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Ayoib A, Gopinath SCB, Zambry NS, Yahya ARM. Screening biosurfactant-producing actinomycetes: Identification of Streptomyces sp. RP1 as a potent species for bioremediation. J Basic Microbiol 2024; 64:e2300585. [PMID: 38346247 DOI: 10.1002/jobm.202300585] [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: 10/04/2023] [Revised: 12/25/2023] [Accepted: 01/21/2024] [Indexed: 03/03/2024]
Abstract
This study aimed to isolate biosurfactant-producing and hydrocarbon-degrading actinomycetes from different soils using glycerol-asparagine and starch-casein media with an antifungal agent. The glycerol-asparagine agar exhibited the highest number of actinomycetes, with a white, low-opacity medium supporting pigment production and high growth. Biosurfactant analyses, such as drop collapse, oil displacement, emulsification, tributyrin agar test, and surface tension measurement, were conducted. Out of 25 positive isolates, seven could utilize both olive oil and black oil for biosurfactant production, and only isolate RP1 could produce biosurfactant when grown in constrained conditions with black oil as the sole carbon source and inducer, demonstrating in situ bioremediation potential. Isolate RP1 from oil-spilled garden soil is Gram-staining-positive with a distinct earthy odor, melanin formation, and white filamentous colonies. It has a molecular size of ~621 bp and 100% sequence similarity to many Streptomyces spp. Morphological, biochemical, and 16 S rRNA analysis confirmed it as Streptomyces sp. RP1, showing positive results in all screenings, including high emulsification activity against kerosene (27.2%) and engine oil (95.8%), oil displacement efficiency against crude oil (7.45 cm), and a significant reduction in surface tension (56.7 dynes/cm). Streptomyces sp. RP1 can utilize citrate as a carbon source, tolerate sodium chloride, resist lysozyme, degrade petroleum hydrocarbons, and produce biosurfactant at 37°C in a 15 mL medium culture, indicating great potential for bioremediation and various downstream industrial applications with optimization.
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Affiliation(s)
- Adilah Ayoib
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), Padang Besar, Perlis, Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, Perlis, Malaysia
- Carbon Sustainability Nexus (CaSNex), Special Interest Group (SIG), Universiti Malaysia Perlis (UniMAP), Arau, Perlis, Malaysia
| | - Subash C B Gopinath
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), Padang Besar, Perlis, Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, Perlis, Malaysia
- Micro System Technology, Centre of Excellence (CoE), Universiti Malaysia Perlis (UniMAP), Arau, Perlis, Malaysia
| | - Nor Syafirah Zambry
- School of Biological Sciences, Universiti Sains Malaysia, USM, Pulau Pinang, Malaysia
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7
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Zhu M, Zhang H, Cui W, Su Y, Sun S, Zhao C, Liu Q. Performance evaluation of rhamnolipid biosurfactant produced by Pseudomonas aeruginosa and its effect on marine oil-spill remediation. Arch Microbiol 2024; 206:183. [PMID: 38502272 DOI: 10.1007/s00203-024-03903-x] [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: 10/27/2023] [Revised: 01/30/2024] [Accepted: 02/18/2024] [Indexed: 03/21/2024]
Abstract
This study aimed to reveal that the effect of biosurfactant on the dispersion and degradation of crude oil. Whole genome analysis showed that Pseudomonas aeruginosa GB-3 contained abundant genes involved in biosurfactant synthesis and metabolic processes and had the potential to degrade oil. The biosurfactant produced by strain GB-3 was screened by various methods. The results showed that the surface tension reduction activity was 28.6 mN·m-1 and emulsification stability was exhibited at different pH, salinity and temperature. The biosurfactant was identified as rhamnolipid by LC-MS and FTIR. The fermentation conditions of strain GB-3 were optimized by response surface methodology, finally the optimal system (carbon source: glucose, nitrogen source: ammonium sulfate, C/N ratio:16:1, pH: 7, temperature: 30-35 °C) was determined. Compared with the initial fermentation, the yield of biosurfactant increased by 4.4 times after optimization. In addition, rhamnolipid biosurfactant as a dispersant could make the dispersion of crude oil reach 38% within seven days, which enhanced the bioavailability of crude oil. As a biostimulant, it could also improve the activity of indigenous microorganism and increase the degradation rate of crude oil by 10-15%. This study suggested that rhamnolipid biosurfactant had application prospect in bioremediation of marine oil-spill.
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Affiliation(s)
- Mingjun Zhu
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, People's Republic of China
| | - Hang Zhang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, People's Republic of China
| | - Wu Cui
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, People's Republic of China
| | - Yuhua Su
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, People's Republic of China
| | - Shuo Sun
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, People's Republic of China
| | - Chaocheng Zhao
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, 266580, People's Republic of China
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, People's Republic of China
| | - Qiyou Liu
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, 266580, People's Republic of China.
- State Key Laboratory of Petroleum Pollution Control, Qingdao, 266580, People's Republic of China.
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8
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Eregie SB, Sanusi IA, Kana GEB, Olaniran AO. Effect of ultra-violet light radiation on Scenedesmus vacuolatus growth kinetics, metabolic performance, and preliminary biodegradation study. Biodegradation 2024; 35:71-86. [PMID: 37052742 PMCID: PMC10774200 DOI: 10.1007/s10532-023-10029-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 03/24/2023] [Indexed: 04/14/2023]
Abstract
This study presents the effect of ultra-violet (UV) light radiation on the process kinetics, metabolic performance, and biodegradation capability of Scenedesmus vacuolatus. The impact of the UV radiation on S. vacuolatus morphology, chlorophyll, carotenoid, carbohydrates, proteins, lipid accumulation, growth rate, substrate affinity and substrate versatility were evaluated. Thereafter, a preliminary biodegradative potential of UV-exposed S. vacuolatus on spent coolant waste (SCW) was carried out based on dehydrogenase activity (DHA) and total petroleum hydrocarbon degradation (TPH). Pronounced structural changes were observed in S. vacuolatus exposed to UV radiation for 24 h compared to the 2, 4, 6, 12 and 48 h UV exposure. Exposure of S. vacuolatus to UV radiation improved cellular chlorophyll (chla = 1.89-fold, chlb = 2.02-fold), carotenoid (1.24-fold), carbohydrates (4.62-fold), proteins (1.44-fold) and lipid accumulations (1.40-fold). In addition, the 24 h UV exposed S. vacuolatus showed a significant increase in substrate affinity (1/Ks) (0.959), specific growth rate (µ) (0.024 h-1) and biomass accumulation (0.513 g/L) by 1.50, 2 and 1.9-fold respectively. Moreover, enhanced DHA (55%) and TPH (100%) degradation efficiency were observed in UV-exposed S. vacuolatus. These findings provided major insights into the use of UV radiation to enhance S. vacuolatus biodegradative performance towards sustainable green environment negating the use of expensive chemicals and other unfriendly environmental practices.
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Affiliation(s)
- Stella B Eregie
- School of Life Sciences, University of KwaZulu-Natal, Private Bag, X01, Scottsville 3209, Pietermaritzburg, South Africa.
| | - Isaac A Sanusi
- School of Life Sciences, University of KwaZulu-Natal, Private Bag, X01, Scottsville 3209, Pietermaritzburg, South Africa
- Fort Hare Institute of Technology, University of Fort Hare, Private Bag X1314, Alice, 5700, South Africa
| | - Gueguim E B Kana
- School of Life Sciences, University of KwaZulu-Natal, Private Bag, X01, Scottsville 3209, Pietermaritzburg, South Africa
| | - Ademola O Olaniran
- School of Life Sciences, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Pietermaritzburg, South Africa
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9
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Datta D, Ghosh S, Kumar S, Gangola S, Majumdar B, Saha R, Mazumdar SP, Singh SV, Kar G. Microbial biosurfactants: Multifarious applications in sustainable agriculture. Microbiol Res 2024; 279:127551. [PMID: 38016380 DOI: 10.1016/j.micres.2023.127551] [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: 07/18/2023] [Revised: 11/02/2023] [Accepted: 11/14/2023] [Indexed: 11/30/2023]
Abstract
Agriculture in the 21st century faces grave challenges to meet the unprecedented food demand of the burgeoning population as well as reduce the ecological footprint for achieving sustainable development goals. The extensive use of harsh synthetic surfactants in pesticides and the agrochemical industry has substantial adverse impacts on the soil and environment due to their toxic and non-biodegradable nature. Biosurfactants derived from plant, animal, and microbial sources can be an eco-friendly alternative to chemical surfactants. Microbes producing biosurfactants play a noteworthy role in biofilm formation, plant pathogen elimination, biodegradation, bioremediation, improving nutrient bioavailability, and can thrive well under stressful environments. Microbial biosurfactants are well suited for heavy metal and organic contaminants remediation in agricultural soil due to their low toxicity, high activity at fluctuating temperatures, biodegradability, and stability over a wide array of environmental conditions. This green technology will improve the agricultural soil quality by increasing the soil flushing efficiency, mobilization, and solubilization of nutrients by forming metal-biosurfactant complexes, and through the dissemination of complex nutrients. Such characteristics help it to play a pivotal role in environmental sustainability in the foreseeable future, which is required to increase the viability of biosurfactants for extensive commercial uses, making them accessible, affordable, and economically sustainable.
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Affiliation(s)
- Debarati Datta
- ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata 700 121, India
| | - Sourav Ghosh
- ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata 700 121, India.
| | - Saurabh Kumar
- ICAR-Research Complex for Eastern Region, Patna 800014, Bihar, India
| | - Saurabh Gangola
- Graphic Era Hill University, Bhimtal 263 156, Uttarakhand, India
| | - Bijan Majumdar
- ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata 700 121, India
| | - Ritesh Saha
- ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata 700 121, India
| | - Sonali Paul Mazumdar
- ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata 700 121, India
| | - Shiv Vendra Singh
- College of Agriculture, Rani Lakshmi Bai Central Agricultural University, Jhansi 238004, Uttar Pradesh, India
| | - Gouranga Kar
- ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata 700 121, India
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10
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Naaz T, Kumari S, Sharma K, Singh V, Khan AA, Pandit S, Priya K, Jadhav DA. Bioremediation of hydrocarbon by co-culturing of biosurfactant-producing bacteria in microbial fuel cell with Fe 2O 3-modified anode. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119768. [PMID: 38100858 DOI: 10.1016/j.jenvman.2023.119768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/13/2023] [Accepted: 12/03/2023] [Indexed: 12/17/2023]
Abstract
The most common type of environmental contamination is petroleum hydrocarbons. Sustainable and environmentally friendly treatment strategies must be explored in light of the increasing challenges of toxic and critical wastewater contamination. This paper deals with the bacteria-producing biosurfactant and their employment in the bioremediation of hydrocarbon-containing waste through a microbial fuel cell (MFC) with Pseudomonas aeruginosa (exoelectrogen) as co-culture for simultaneous power generation. Staphylococcus aureus is isolated from hydrocarbon-contaminated soil and is effective in hydrocarbon degradation by utilizing hydrocarbon (engine oil) as the only carbon source. The biosurfactant was purified using silica-gel column chromatography and characterised through FTIR and GCMS, which showed its glycolipid nature. The isolated strains are later employed in the MFCs for the degradation of the hydrocarbon and power production simultaneously which has shown a power density of 6.4 W/m3 with a 93% engine oil degradation rate. A biogenic Fe2O3 nanoparticle (NP) was synthesized using Bambusa arundinacea shoot extract for anode modification. It increased the power output by 37% and gave the power density of 10.2 W/m3. Thus, simultaneous hydrocarbon bioremediation from oil-contamination and energy recovery can be achieved effectively in MFC with modified anode.
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Affiliation(s)
- Tahseena Naaz
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201310, Uttar Pradesh, India
| | - Shilpa Kumari
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201310, Uttar Pradesh, India
| | - Kalpana Sharma
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201310, Uttar Pradesh, India
| | - Vandana Singh
- Department of Microbiology, School of Allied Health Sciences, Sharda University, Greater Noida, 201310, Uttar Pradesh, India
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Soumya Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201310, Uttar Pradesh, India.
| | - Kanu Priya
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201310, Uttar Pradesh, India.
| | - Dipak A Jadhav
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan, 49112, Republic of Korea.
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11
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Hu F, Wang P, Li Y, Ling J, Ruan Y, Yu J, Zhang L. Bioremediation of environmental organic pollutants by Pseudomonas aeruginosa: Mechanisms, methods and challenges. ENVIRONMENTAL RESEARCH 2023; 239:117211. [PMID: 37778604 DOI: 10.1016/j.envres.2023.117211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/10/2023] [Accepted: 09/25/2023] [Indexed: 10/03/2023]
Abstract
The development of the chemical industry has led to a boom in daily consumption and convenience, but has also led to the release of large amounts of organic pollutants, such as petroleum hydrocarbons, plastics, pesticides, and dyes. These pollutants are often recalcitrant to degradation in the environment, whereby the most problematic compounds may even lead to carcinogenesis, teratogenesis and mutagenesis in animals and humans after accumulation in the food chain. Microbial degradation of organic pollutants is efficient and environmentally friendly, which is why it is considered an ideal method. Numerous studies have shown that Pseudomonas aeruginosa is a powerful platform for the remediation of environmental pollution with organic chemicals due to its diverse metabolic networks and its ability to secrete biosurfactants to make hydrophobic substrates more bioavailable, thereby facilitating degradation. In this paper, the mechanisms and methods of the bioremediation of environmental organic pollutants (EOPs) by P. aeruginosa are reviewed. The challenges of current studies are highlighted, and new strategies for future research are prospected. Metabolic pathways and critical enzymes must be further deciphered, which is significant for the construction of a bioremediation platform based on this powerful organism.
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Affiliation(s)
- Fanghui Hu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Jiangsu, Nanjing, 210023, China
| | - Panlin Wang
- School of Bioengineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yunhan Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Jiangsu, Nanjing, 210023, China
| | - Jiahuan Ling
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Jiangsu, Nanjing, 210023, China
| | - Yongqiang Ruan
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Jiangsu, Nanjing, 210023, China
| | - Jiaojiao Yu
- School of Medical Imaging, Tianjin Medical University, Tianjin, 300203, China.
| | - Lihui Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Jiangsu, Nanjing, 210023, China.
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12
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Xia M, Wang S, Chen B, Qiu R, Fan G. Enhanced Solubilization and Biodegradation of HMW-PAHs in Water with a Pseudomonas mosselii-Released Biosurfactant. Polymers (Basel) 2023; 15:4571. [PMID: 38232027 PMCID: PMC10708242 DOI: 10.3390/polym15234571] [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: 10/23/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024] Open
Abstract
The treatment and reuse of wastewater are crucial for the effective utilization and protection of global water resources. Polycyclic aromatic hydrocarbons (PAHs), as one of the most common organic pollutants in industrial wastewater, are difficult to remove due to their relatively low solubility and bioavailability in the water environment. However, biosurfactants with both hydrophilic and hydrophobic groups are effective in overcoming these difficulties. Therefore, a biosurfactant-producing strain Pseudomonas mosselii MP-6 was isolated in this study to enhance the bioavailability and biodegradation of PAHs, especially high-molecular-weight PAHs (HMW-PAHs). FTIR and LC-MS analysis showed that the MP-6 surfactant belongs to rhamnolipids, a type of biopolymer, which can reduce the water surface tension from 73.20 mN/m to 30.61 mN/m at a critical micelle concentration (CMC = 93.17 mg/L). The enhanced solubilization and biodegradation of PAHs, particularly HMW-PAHs (when MP-6 was introduced), were also demonstrated in experiments. Furthermore, comprehensive environmental stress tolerance tests were conducted to confirm the robustness of the MP-6 biosurfactant, which signifies the potential adaptability and applicability of this biosurfactant in diverse environmental remediation scenarios. The results of this study, therefore, have significant implications for future applications in the treatment of wastewater containing HMW-PAHs, such as coking wastewater.
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Affiliation(s)
- Mingqian Xia
- College of Civil Engineering, Fuzhou University, Fuzhou 350116, China
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13
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Gaur S, Gupta S, Jha PN, Jain A. Rhamnolipid production by Pseudomonas aeruginosa (SSL-4) on waste engine oil (WEO): Taguchi optimization, soil remediation, and phytotoxicity investigation. ENVIRONMENTAL TECHNOLOGY 2023:1-14. [PMID: 37682050 DOI: 10.1080/09593330.2023.2257915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023]
Abstract
ABSTRACTEnvironmental concerns and rising biosurfactant demand emphasize the need for this study. The objective is to maximize rhamnolipid-biosurfactant production by Pseudomonas aeruginosa (SSL-4) utilizing waste engine oil (WEO) as the sole substrate for use in soil bioremediation and commercial production. Using an L16 Taguchi orthogonal array, a signal-to-noise ratio, and an analysis of variance (ANOVA), the effects of environmental (pH, incubation temperature) and dietary parameters (carbon source concentration, carbon/nitrogen (C/N) and carbon/phosphorus (C/P) ratio) are examined. Variations of the following parameters were made within a carefully selected range: incubation temperature of 25-40℃, pH range of 5-11, WEO concentration of 1-7% (v/v), and C/N and C/P ratios of 10-40. Response variables in this batch study include surface tension reduction (mN/m), dry cell biomass (DCBM) (g/L), and rhamnolipids yield based on substrate consumption, YP/S (g/g). Rhamnolipid was synthesized under optimal conditions, providing a yield of 21.42 g/g. The oil recovery of 74.05 ± 1.481% was achieved from oil-contaminated soil at a CMC of ∼70 mg/L. FTIR, 1H NMR, and UPLC-MS techniques were utilized for the characterization of rhamnolipids, and AAS for determining heavy metals concentration in WEO and residual waste engine oil (RWEO). The Germination Index (GI) of ∼82.55% indicated no phytotoxicity associated with synthesized rhamnolipid.
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Affiliation(s)
- Shailee Gaur
- Department of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Rajasthan, India
| | - Suresh Gupta
- Department of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Rajasthan, India
| | - Prabhat N Jha
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, Rajasthan, India
| | - Amit Jain
- Department of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Rajasthan, India
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14
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Sadeghi A, Khazaeel K, Tabandeh MR, Nejaddehbashi F, Givi ME. Prenatal exposure to crude oil vapor reduces differentiation potential of rat fetal mesenchymal stem cells by regulating ERK1/2 and PI3K signaling pathways: Protective effect of quercetin. Reprod Toxicol 2023; 120:108440. [PMID: 37467934 DOI: 10.1016/j.reprotox.2023.108440] [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: 05/18/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023]
Abstract
It has been indicated that crude oil vapor (COV) induces tissue damage by several molecular mechanisms. Quercetin (QT) as an important component of food with antioxidant properties has a protective role against cell toxicity caused by many pollutants. However, data related to the adverse effects of crude oil vapor (COV) on stem cell fate and differentiation and the role of quercetin (QT) in protecting stem cells against the toxicity caused by these pollutants is very limited. This study aimed to explore the protective effect of QT against the adverse effects of COV on fetal mesenchymal stem cells (fMSCs) differentiation. Twenty-four pregnant Wistar rats were categorized into 4 groups including the control, COV, COV+QT, and QT. Rats were exposed to COV from gestational day (GD) 0-15 and received QT by gavage. The fMSCs were isolated from fetuses, and cell proliferation, differentiation potential, expression of osteogenesis and adipogenesis-related genes, and phosphorylation of PI3K and ERK1/2 signaling proteins were evaluated. The results showed that COV reduced the proliferation and differentiation of fMSCs through the activation of PI3K and ERK1/2 signaling pathways. Also, COV significantly decreased the expression of osteonectin, ALP, BMP-6, Runx-2, PPARγ, and CREBBP genes in differentiated cells. QT treatment increased the proliferation and differentiation of fMSCs in COV-exposed rats. In conclusion, our findings suggest that prenatal exposure to COV impaired fMSCs differentiation and QT reduced the adverse effects of COV by regulating ERK1/2 and PI3K signaling pathways.
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Affiliation(s)
- Abbas Sadeghi
- Department of Basic Science, Division of Anatomy and Embryology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Kaveh Khazaeel
- Department of Basic Science, Division of Anatomy and Embryology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran; Stem Cells and Transgenic Technology Research Center (STTRC), Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Mohammad Reza Tabandeh
- Stem Cells and Transgenic Technology Research Center (STTRC), Shahid Chamran University of Ahvaz, Ahvaz, Iran; Department of Basic Sciences, Division of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Fereshteh Nejaddehbashi
- Cellular and Molecular Research Center, Medical Basic Sciences Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masoumeh Ezzati Givi
- Department of Basic Sciences, Division of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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15
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Al-Marri S, Eldos H, Ashfaq M, Saeed S, Skariah S, Varghese L, Mohamoud Y, Sultan A, Raja M. Isolation, identification, and screening of biosurfactant-producing and hydrocarbon-degrading bacteria from oil and gas industrial waste. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2023; 39:e00804. [PMID: 37388572 PMCID: PMC10300049 DOI: 10.1016/j.btre.2023.e00804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/23/2023] [Accepted: 06/10/2023] [Indexed: 07/01/2023]
Abstract
Qatar is one of the biggest oil and gas producers in the world, coupled with it is challenging environmental conditions (high average temperature: >40 °C, low annual rainfall: 46.71 mm, and high annual evaporation rate: 2200 mm) harbors diverse microbial communities that are novel and robust, with the potential to biodegrade hydrocarbons. In this study, we collected hydrocarbon contaminated sludge, wastewater and soil samples from oil and gas industries in Qatar. Twenty-six bacterial strains were isolated in the laboratory from these samples using high saline conditions and crude oil as the sole carbon source. A total of 15 different bacterial genera were identified in our study that have not been widely reported in the literature or studied for their usage in the biodegradation of hydrocarbons. Interestingly, some of the bacteria that were identified belonged to the same genus however, demonstrated variable growth rates and biosurfactant production. This indicates the possibility of niche specialization and specific evolution to acquire competitive traits for better survival. The most potent strain EXS14, identified as Marinobacter sp., showed the highest growth rate in the oil-containing medium as well as the highest biosurfactant production. When this strain was further tested for biodegradation of hydrocarbons, the results showed that it was able to degrade 90 to 100% of low and medium molecular weight hydrocarbons and 60 to 80% of high molecular weight (C35 to C50) hydrocarbons. This study offers many promising leads for future studies of microbial species and their application for the treatment of hydrocarbon contaminated wastewater and soil in the region and in other areas with similar environmental conditions.
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Affiliation(s)
| | | | | | - S. Saeed
- ExxonMobil Research Qatar, Doha, Qatar
| | - S. Skariah
- Department of Microbiology and Immunology, Weill Cornell Medicine - Qatar, Education City, Qatar Foundation, P. O. Box 24144, Doha, Qatar
| | | | - Y.A. Mohamoud
- Department of Microbiology and Immunology, Weill Cornell Medicine - Qatar, Education City, Qatar Foundation, P. O. Box 24144, Doha, Qatar
| | - A.A. Sultan
- Department of Microbiology and Immunology, Weill Cornell Medicine - Qatar, Education City, Qatar Foundation, P. O. Box 24144, Doha, Qatar
| | - M.M. Raja
- Qatargas Operating Company, Doha, Qatar
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16
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Bhadra S, Chettri D, Kumar Verma A. Biosurfactants: Secondary Metabolites Involved in the Process of Bioremediation and Biofilm Removal. Appl Biochem Biotechnol 2023; 195:5541-5567. [PMID: 35579742 DOI: 10.1007/s12010-022-03951-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 05/02/2022] [Indexed: 12/24/2022]
Abstract
The search for environmentally friendly methods to remove persistent substances such as organic pollutants and sessile communities such as biofilms that severely affect the environment and human health resulted in biosurfactant discovery. Owing to their low level of toxicity and high biodegradability, biosurfactants are increasingly preferred to be used for removal of pollutants from nature. These amphipathic molecules can be synthesized inexpensively, employing cheap substrates such as agricultural and industrial wastes. Recent progress has been made in identifying various biosurfactants that can be used to remove organic pollutants and harmful microbial aggregates, as well as novel microbial strains that produce these surface-active molecules to survive in a hydrocarbon-rich environment. This review focuses on the identification and understanding the role of biosurfactants and the microorganisms involved in the removal of biofilms and remediation of xenobiotics and various types of hydrocarbons such as crude oil, aromatic hydrocarbons, n-alkanes, aliphatic hydrocarbons, asphaltenes, naphthenes, and other petroleum products. This property of biosurfactant is very important as biofilms are of great concern due to their impact on the environment, public health, and industries worldwide. This work also includes several advanced molecular methods that can be used to enhance the production of biosurfactants by the microorganisms studied.
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Affiliation(s)
- Sushruta Bhadra
- Department of Microbiology, Sikkim University, Gangtok, 737102, Sikkim, India
| | - Dixita Chettri
- Department of Microbiology, Sikkim University, Gangtok, 737102, Sikkim, India
| | - Anil Kumar Verma
- Department of Microbiology, Sikkim University, Gangtok, 737102, Sikkim, India.
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17
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Yehia RS. Highlighting the potential for crude oil bioremediation of locally isolated Cunninghamella echinulata and Mucor circinelloides. Braz J Microbiol 2023; 54:1969-1981. [PMID: 37249816 PMCID: PMC10485222 DOI: 10.1007/s42770-023-01008-z] [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: 03/16/2023] [Accepted: 05/13/2023] [Indexed: 05/31/2023] Open
Abstract
The current investigation was carried out to assess the potential of fungi isolated from polluted soil samples in Al Jubail, Saudi Arabia, to degrade crude oil. In a minimal salt medium with 1% crude oil as the carbon source, the growth potential of various fungal isolates was examined. Among twelve fungal isolates, YS-6 and YS-10, identified as Cunninghamella echinulata and Mucor circinelloides based on multiple sequence comparisons and phylogenetic analyses, were selected as having superior crude oil degrading abilities. To the best of our knowledge, the isolated species have never been detected in polluted soil samples in the eastern province of Saudi Arabia. YS-6 and YS-10 have shown their capacity to metabolize crude oil by removing 59.7 and 78.1% of crude oil, respectively. Interestingly, they succeeded in reducing the surface tension to 41.2 and 35.9 mN/m, respectively. Moreover, the emulsification activity and hydrophobicity were determined to be 36.7, 44.9, 35.9, and 53.4%, respectively. The recovery assays included zinc sulfate, ammonium sulfate, acid precipitation, and solvent extraction techniques. All these approaches showed that the amount of biosurfactants correlates to the tested hydrocarbons. Furthermore, the enzyme activity of these two isolates generated significantly more laccase (Lac) than manganese peroxidase (MnP) and lignin peroxidase (LiP), as compared to the control. In conclusion, our study highlights new perspectives on the fungal resources found in persistently polluted terrestrial ecosystems. This knowledge will be useful for bioremediation, safe disposal of petroleum-oil contamination, and other industrial uses.
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Affiliation(s)
- Ramy S Yehia
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia.
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, 12613, Egypt.
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18
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Lin X, Ma J, Zhou Z, Qiao B, Li Y, Zheng W, Tian Y. Oil-contaminated sites act as high-risk pathogen reservoirs previously overlooked in coastal zones. WATER RESEARCH 2023; 242:120225. [PMID: 37329716 DOI: 10.1016/j.watres.2023.120225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/03/2023] [Accepted: 06/12/2023] [Indexed: 06/19/2023]
Abstract
In addition to the organic pollutants and disturbance to the microbial, plant and animal systems, oil contamination can also enrich opportunistic pathogens. But little is known about whether and how the most common coastal oil-contaminated water bodies act as reservoirs for pathogens. Here, we delved into the characteristics of pathogenic bacteria in coastal zones by constructing seawater-based microcosms with diesel oil as a pollutant. 16S rRNA gene full-length sequencing and genomic exploration revealed that pathogenic bacteria with genes involved in alkane or aromatic degradation were significantly enriched under oil contamination, providing a genetic basis for them to thrive in oil-contaminated seawater. Moreover, high-throughput qPCR assays showed an increased abundance of the virulence gene and enrichment in antibiotics resistance genes (ARGs), especially those related to multidrug resistance efflux pumps, and their high relevance to Pseudomonas, enabling this genus to achieve high levels of pathogenicity and environmental adaptation. More importantly, infection experiments with a culturable P. aeruginosa strain isolated from an oil-contaminated microcosm provided clear evidence that the environmental strain was pathogenic to grass carp (Ctenopharyngodon idellus), and the highest lethality rate was found in the oil pollutant treatment, demonstrating the synergistic effect of toxic oil pollutants and pathogens on infected fish. A global genomic investigation then revealed that diverse environmental pathogenic bacteria with oil degradation potential are widely distributed in marine environments, especially in coastal zones, suggesting extensive pathogenic reservoir risks in oil-contaminated sites. Overall, the study uncovered a hidden microbial risk, showing that oil-contaminated seawater could be a high-risk pathogen reservoir, and provides new insights and potential targets for environmental risk assessment and control.
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Affiliation(s)
- Xiaolan Lin
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Jiaxin Ma
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | | | - Baoyi Qiao
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Yixin Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Wei Zheng
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Yun Tian
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Sciences, Xiamen University, Xiamen 361102, China.
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19
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Dasgupta A, Saha S, Ganguli P, Das I, De D, Chaudhuri S. Characterization of pumilacidin, a lipopeptide biosurfactant produced from Bacillus pumilus NITDID1 and its prospect in bioremediation of hazardous pollutants. Arch Microbiol 2023; 205:274. [PMID: 37401995 DOI: 10.1007/s00203-023-03619-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 06/27/2023] [Indexed: 07/05/2023]
Abstract
Highly hydrophobic compounds like petroleum and their byproducts, once released into the environment, can persist indefinitely by virtue of their ability to resist microbial degradation, ultimately paving the path to severe environmental pollution. Likewise, the accumulation of toxic heavy metals like lead, cadmium, chromium, etc., in the surroundings poses an alarming threat to various living organisms. To remediate the matter in question, the applicability of a biosurfactant produced from the mangrove bacterium Bacillus pumilus NITDID1 (Accession No. KY678446.1) is reported here. The structural characterization of the produced biosurfactant revealed it to be a lipopeptide and has been identified as pumilacidin through FTIR, NMR, and MALDI-TOF MS. The critical micelle concentration of pumilacidin was 120 mg/L, and it showed a wide range of stability in surface tension reduction experiments under various environmental conditions and exhibited a high emulsification index of as much as 90%. In a simulated setup of engine oil-contaminated sand, considerable oil recovery (39.78%) by this biosurfactant was observed, and upon being added to a microbial consortium, there was an appreciable enhancement in the degradation of the used engine oil. As far as the heavy metal removal potential of biosurfactant is concerned, as much as 100% and 82% removal was observed for lead and cadmium, respectively. Thus, in a nutshell, the pumilacidin produced from Bacillus pumilus NITDID1 holds promise for multifaceted applications in the field of environmental remediation.
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Affiliation(s)
- Arpan Dasgupta
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
- Department of Microbiology, Michael Madhusudan Memorial College, Durgapur, West Bengal, 713216, India
| | - Sourav Saha
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
| | - Parna Ganguli
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
| | - Ishita Das
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
| | - Debojyoti De
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
| | - Surabhi Chaudhuri
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India.
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20
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Rajasekaran M, Kandasamy R. High-throughput bioamphiphile production by ethyl methane sulphonate induced mutant of hydrocarbonoclastic Enterobacter xiangfangensis STP-3: In depth structural elucidation and application to petroleum refinery oil sludge bioremediation. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131961. [PMID: 37393827 DOI: 10.1016/j.jhazmat.2023.131961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 06/08/2023] [Accepted: 06/27/2023] [Indexed: 07/04/2023]
Abstract
The environmental release of noxious petroleum hydrocarbons (PHCs) from the petroleum refining industries is an intractable global challenge. Indigenous PHCs degrading microbes produce insufficient yield of amphiphilic biomolecules with trivial efficiency makes the bioremediation process ineffective. In this concern, the present study is focused on the production of high yield multi-functional amphiphilic biomolecule through the genetic modification of Enterobacter xiangfangensis STP-3 strain using Ethyl methane sulphonate (EMS) induced mutagenesis. Mutant M9E.xiangfangensis showed 2.32-fold increased yield of bioamphiphile than wild-type strain. Novel bioamphiphile produced by M9E.xiangfangensis exhibited improved surface and emulsification activities which ensure the maximum degradation of petroleum oil sludge (POS) by 86% than wild-type (72%). SARA, FT-IR, and GC-MS analyses confirmed the expedited degradation of POS and ICP-MS analysis indicated the enhanced removal of heavy metals in connection with the ample production of functionally improved bioamphiphile. FT-IR NMR, MALDI-TOF, GC-MS and LC-MS/MS analyses portrayed the lipoprotein nature of bioamphiphile comprising pentameric fatty acid moiety conjugated with the catalytic esterase moiety. Further, homology modelling and molecular docking revealed the stronger interaction of hydrophobic amino acids, leucine and isoleucine with the PHCs in the case of wild-type esterase moiety, whereas in the mutant, aromatic amino acids were majorly interacted with the long chain and branched chain alkanes, thereby exhibited better efficiency. This is the first report on the adoption of EMS induced mutagenesis strategy to ameliorate the amphiphilic biomolecules for their sustainable applications in diverse biotechnological, environmental and industrial arenas.
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Affiliation(s)
- Muneeswari Rajasekaran
- Industrial and Environmental Sustainability Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Chengalpattu District, Kattankulathur 603203, Tamil Nadu, India
| | - Ramani Kandasamy
- Industrial and Environmental Sustainability Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Chengalpattu District, Kattankulathur 603203, Tamil Nadu, India.
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Ali MS, Lee EB, Hsu WH, Suk K, Sayem SAJ, Ullah HMA, Lee SJ, Park SC. Probiotics and Postbiotics as an Alternative to Antibiotics: An Emphasis on Pigs. Pathogens 2023; 12:874. [PMID: 37513721 PMCID: PMC10383198 DOI: 10.3390/pathogens12070874] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/30/2023] Open
Abstract
Probiotics are being used as feed/food supplements as an alternative to antibiotics. It has been demonstrated that probiotics provide several health benefits, including preventing diarrhea, irritable bowel syndrome, and immunomodulation. Alongside probiotic bacteria-fermented foods, the different structural components, such as lipoteichoic acids, teichoic acids, peptidoglycans, and surface-layer proteins, offer several advantages. Probiotics can produce different antimicrobial components, enzymes, peptides, vitamins, and exopolysaccharides. Besides live probiotics, there has been growing interest in consuming inactivated probiotics in farm animals, including pigs. Several reports have shown that live and killed probiotics can boost immunity, modulate intestinal microbiota, improve feed efficiency and growth performance, and decrease the incidence of diarrhea, positioning them as an interesting strategy as a potential feed supplement for pigs. Therefore, effective selection and approach to the use of probiotics might provide essential features of using probiotics as an important functional feed for pigs. This review aimed to systematically investigate the potential effects of lactic acid bacteria in their live and inactivated forms on pigs.
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Affiliation(s)
- Md Sekendar Ali
- Department of Biomedical Science and Department of Pharmacology, School of Medicine, Brain Science and Engineering Institute, Kyungpook National University, Daegu 41944, Republic of Korea
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh
| | - Eon-Bee Lee
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Walter H Hsu
- Department of Biomedical Sciences, Iowa State University, Ames, IA 50014, USA
| | - Kyoungho Suk
- Department of Biomedical Science and Department of Pharmacology, School of Medicine, Brain Science and Engineering Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Syed Al Jawad Sayem
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - H M Arif Ullah
- Department of Neurobiology, University of Utah, Salt Lake City, UT 84112, USA
| | - Seung-Jin Lee
- Development and Reproductive Toxicology Research Group, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Seung-Chun Park
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
- Cardiovascular Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea
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22
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Gaur S, Gupta S, Jain A. Production, characterization, and kinetic modeling of biosurfactant synthesis by Pseudomonas aeruginosa gi |KP 163922|: a mechanism perspective. World J Microbiol Biotechnol 2023; 39:178. [PMID: 37129646 DOI: 10.1007/s11274-023-03623-2] [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: 11/05/2022] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
Kinetic studies and modeling of production parameters are essential for developing economical biosurfactant production processes. This study will provide a perspective on mechanistic reaction pathways to metabolize Waste Engine Oil (WEO). The results will provide relevant information on (i) WEO concentration above which growth inhibition occurs, (ii) chemical changes in WEO during biodegradation, and (iii) understanding of growth kinetics for the strain utilizing complex substrates. Laboratory scale experiments were conducted to study the kinetics and biodegradation potential of the strain Pseudomonas aeruginosa gi |KP 163922| over a range (0.5-8% (v/v)) of initial WEO concentration for 168 h. The kinetic models, such as Monod, Powell, Edward, Luong, and Haldane, were evaluated by fitting the experimental results in respective model equations. An unprecedented characterization of the substrate before and after degradation is presented, along with biosurfactant characterization. The secretion of biosurfactant during the growth, validated by surface tension reduction (72.07 ± 1.14 to 29.32 ± 1.08 mN/m), facilitated the biodegradation of WEO to less harmful components. The strain showed an increase in maximum specific growth rate (µmax) from 0.0185 to 0.1415 h-1 upto 49.92 mg/L WEO concentration. Maximum WEO degradation was found to be ~ 94% gravimetrically. The Luong model (adj. R2 = 0.97) adapted the experimental data using a non-linear regression method. Biochemical, 1H NMR, and FTIR analysis of the produced biosurfactant revealed a mixture of mono- and di- rhamnolipid. The degradation compounds in WEO were identified using FTIR, 1H NMR, and GC-MS analysis to deduce the mechanism.
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Affiliation(s)
- Shailee Gaur
- Department of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Suresh Gupta
- Department of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Amit Jain
- Department of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India.
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23
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Kumari K, Behera HT, Nayak PP, Sinha A, Nandi A, Ghosh A, Saha U, Suar M, Panda PK, Verma SK, Raina V. Amelioration of lipopeptide biosurfactants for enhanced antibacterial and biocompatibility through molecular antioxidant property by methoxy and carboxyl moieties. Biomed Pharmacother 2023; 161:114493. [PMID: 36906974 DOI: 10.1016/j.biopha.2023.114493] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Biosurfactants having surface-active biomolecules have been the cynosure in environment research due to their vast application. However, the lack of information about their low-cost production and detailed mechanistic biocompatibility limits the applicability. The study explores techniques for the production and design of low-cost, biodegradable, and non-toxic biosurfactants from Brevibacterium casei strain LS14 and excavates the mechanistic details of their biomedical properties like antibacterial effects and biocompatibility. Taguchi's design of experiment was used to optimize for enhancing biosurfactant production by optimal factor combinations like Waste glycerol (1%v/v), peptone (1%w/v), NaCl 0.4% (w/v), and pH 6. Under optimal conditions, the purified biosurfactant reduced the surface tension to 35 mN/m from 72.8 mN/m (MSM) and a critical micelle concentration of 25 mg/ml was achieved. Spectroscopic analyses of the purified biosurfactant using Nuclear Magnetic Resonance suggested it as a lipopeptide biosurfactant. The evaluation of mechanistic antibacterial, antiradical, antiproliferative, and cellular effects indicated the efficient antibacterial activity (against Pseudomonas aeruginosa) of biosurfactants due to free radical scavenging activity and oxidative stress. Moreover, the cellular cytotoxicity was estimated by MTT and other cellular assays revealing the phenomenon as the dose-dependent induction of apoptosis due to free radical scavenging with an LC50 of 55.6 ± 2.3 mg/ml.
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Affiliation(s)
- Khushbu Kumari
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | | | | | - Adrija Sinha
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | - Aditya Nandi
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | - Aishee Ghosh
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | - Utsa Saha
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | | | - Pritam Kumar Panda
- Department of Physics and Astronomy (Materials Theory), Uppsala University, 75121, Sweden.
| | - Suresh K Verma
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India.
| | - Vishakha Raina
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India.
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24
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Patowary K, Bhuyan T, Patowary R, Mohanta YK, Panda BP, Deka S, Islam NF, Joshi SJ, Sarma H. Soil treatment using a biosurfactant producing bacterial consortium in rice fields contaminated with oily sludge- a sustainable approach. ENVIRONMENTAL RESEARCH 2023; 220:115092. [PMID: 36587720 DOI: 10.1016/j.envres.2022.115092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 12/11/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
A consortium of two biosurfactant-producing bacteria (Bacillus pumilus KS2 and Bacillus cereus R2) was developed to remediate petroleum hydrocarbon-contaminated paddy soil. Soil samples from a heavily contaminated rice field near Assam's Lakwa oilfield were collected and placed in earthen pots for treatment. After each month of incubation, 50 g of soil from each earthen pot was collected, and the soil TPH (ppm) in each sample was determined. The extracted TPH samples were analysed by Gas chromatography-mass spectrometry (GC-MS) to confirm microbial degradation. The soil samples were examined for changes in pH, conductivity, total organic content (TOC), water holding capacity, and total nitrogen content in addition to TPH degradation. An increasing trend in TPH degradation was observed with each passing month. After six months of treatment, the sample with the lowest initial TPH concentration (1735 ppm) had the highest degradation (91.24%), while the soil with the highest amount of TPH (5780 ppm) had the lowest degradation (74.35%). A wide range of aliphatic hydrocarbons found in soil samples was degraded by the bacterial consortium. The soil samples contained eight different low- and high-molecular-weight PAHs. Some were fully mineralized, while others were significantly reduced. With the decrease in the TPH level in the polluted soil, a significant improvement in the soil's physicochemical qualities (such as pH, electrical conductivity, total organic content, and water-holding capacity) was observed.
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Affiliation(s)
- Kaustuvmani Patowary
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya (USTM), 9th Mile, Techno City, Baridua, Ri-Bhoi, 793101, Meghalaya, India; Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science & Technology (IASST), Paschim Boragaon, Guwahati, 781 035, Assam, India
| | - Tamanna Bhuyan
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya (USTM), 9th Mile, Techno City, Baridua, Ri-Bhoi, 793101, Meghalaya, India
| | - Rupshikha Patowary
- Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science & Technology (IASST), Paschim Boragaon, Guwahati, 781 035, Assam, India
| | - Yugal Kishore Mohanta
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya (USTM), 9th Mile, Techno City, Baridua, Ri-Bhoi, 793101, Meghalaya, India
| | - Bibhu Prasad Panda
- Salim Ali Center for Ornithology and Natural History, Coimbatore, 641108, India
| | - Suresh Deka
- Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science & Technology (IASST), Paschim Boragaon, Guwahati, 781 035, Assam, India
| | - Nazim Forid Islam
- Institutional Biotech Hub (IBT Hub), Department of Botany, NN Saikia College, Titabar, 785630, Assam, India
| | - Sanket J Joshi
- Oil & Gas Research Center, Central Analytical and Applied Research Unit, Sultan Qaboos University, Oman
| | - Hemen Sarma
- Bioremediation Technology Research Group, Department of Botany, Bodoland University, Rangalikhata, Deborgaon, 783370, Kokrajhar (BTR), Assam, India.
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25
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Production and Characterization of New Biosurfactants/Bioemulsifiers from Pantoea alhagi and Their Antioxidant, Antimicrobial and Anti-Biofilm Potentiality Evaluations. Molecules 2023; 28:molecules28041912. [PMID: 36838900 PMCID: PMC9963710 DOI: 10.3390/molecules28041912] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/08/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023] Open
Abstract
The present work aimed to develop rapid approach monitoring using a simple selective method based on a positive hemolysis test, oil spreading activity and emulsification index determinations. It is the first to describe production of biosurfactants (BS) by the endophytic Pantoea alhagi species. Results indicated that the new BS evidenced an E24 emulsification index of 82%. Fourier-transform infrared (FTIR) results mentioned that the described BS belong to the glycolipid family. Fatty acid profiles showed the predominance of methyl 2-hyroxydodecanoate in the cell membrane (67.00%) and methyl 14-methylhexadecanoate (12.05%). The major fatty acid in the BS was oleic acid (76.26%), followed by methyl 12-methyltetradecanoate (10.93%). Markedly, the BS produced by the Pantoea alhagi species exhibited antimicrobial and anti-biofilm activities against tested human pathogens. With superior antibacterial activity against Escherchia coli and Staphylococcus aureus, a high antifungal effect was given against Fusarium sp. with a diameter of zone of inhibition of 29.5 mm, 36 mm and 31 mm, obtained by BS dissolved in methanol extract. The DPPH assay indicated that the BS (2 mg/mL) showed a higher antioxidant activity (78.07 inhibition percentage). The new BS exhibited specific characteristics, encouraging their use in various industrial applications.
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26
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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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27
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Biodegradation of Selected Hydrocarbons by Fusarium Species Isolated from Contaminated Soil Samples in Riyadh, Saudi Arabia. J Fungi (Basel) 2023; 9:jof9020216. [PMID: 36836330 PMCID: PMC9966121 DOI: 10.3390/jof9020216] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND Microbial biodegradation of oil-hydrocarbons is one of the sustainable and cost-effective methods to remove petroleum spills from contaminated environments. The current study aimed to investigate the biodegradation abilities of three Fusarium isolates from oil reservoirs in Saudi Arabia. The novelty of the current work is that the biodegradation ability of these isolates was never tested against some natural hydrocarbons of variable compositions, such as Crude oil, and those of known components such as kerosene and diesel oils. METHODS The isolates were treated with five selected hydrocarbons. The hydrocarbon tolerance test in solid and liquid media was performed. The scanning electron microscope (SEM) investigated the morphological changes of treated fungi. 2, 6-Dichlorophenol Indophenol (DCPIP), drop collapse, emulsification activity, and oil Spreading assays investigated the biodegradation ability. The amount of produced biosurfactants was measured, and their safety profile was estimated by the germination assay of tomato seeds. RESULTS The tolerance test showed enhanced fungal growth of all isolates, whereas the highest dose inhibition response (DIR) was 77% for Fusarium proliferatum treated with the used oil (p < 0.05). SEM showed morphological changes in all isolates. DCPIP results showed that used oil had the highest biodegradation by Fusarium verticillioides and Fusarium oxysporum. Mixed oil induced the highest effect in oil spreading, drop collapse, and emulsification assay caused by F. proliferatum. The highest recovery of biosurfactants was obtained by the solvent extraction method for F. verticillioides (4.6 g/L), F. proliferatum (4.22 g/L), and F. oxysporum (3.73 g/L). The biosurfactants produced by the three isolates stimulated tomato seeds' germination more than in control experiments. CONCLUSION The current study suggested the possible oil-biodegradation activities induced by three Fusarium isolates from Riyadh, Saudi Arabia. The produced biosurfactants are not toxic against tomato seed germination, emphasizing their environmental sustainability. Further studies are required to investigate the mechanism of biodegradation activities and the chemical composition of the biosurfactants produced by these species.
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28
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Optimization and Chemical Characterization of Biosurfactant Produced from a Novel Pseudomonas guguanensis Strain Iraqi ZG.K.M. Int J Microbiol 2023; 2023:1571991. [PMID: 36776762 PMCID: PMC9908352 DOI: 10.1155/2023/1571991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 12/19/2022] [Accepted: 12/26/2022] [Indexed: 02/04/2023] Open
Abstract
Microbial surfactants are widely used in medical, pharmaceutical, agricultural, industrial, food, and cosmetics applications. In the present study, 85 indigenous bacteria were isolated from petroleum-contaminated soils of the Al Dourah refinery, electric power station, and electric generators in Baghdad, Iraq. Twenty nine isolates gave positive results in both blood agar and blue agar medium and were secondarily screened. One isolate was selected as a potent biosurfactant producer and molecularly identified and recorded in the NCBI GenBank nucleotide sequence database as Pseudomonas guguanensis strain Iraqi ZG.K.M. In optimized conditions, this strain can produce about 3.01 g/l of biosurfactant. The product could reduce the surface tension from 72 to 38 ± 0.33 mN/m and have E24% of 52 ± 0.33%. This biosurfactant was preliminarily specified to be a glycolipid and characterized as a rhamnolipid with anionic nature, usually to be a monorhamnolipid as evident from TLC, FTIR, and GC-MS analyses.
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29
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Sharma P, Rekhi P, Debnath M. Removal of Heavy Metal by Biosurfactant Producing Novel Halophilic
Staphylococcus sciuri subsp. rodentium
Strain SE I Isolated from Sambhar Salt Lake. ChemistrySelect 2022. [DOI: 10.1002/slct.202202970] [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]
Affiliation(s)
- Priyanka Sharma
- Department of Bioscience Manipal University Jaipur Jaipur 303007 Rajasthan India
| | - Pavni Rekhi
- Department of Bioscience Manipal University Jaipur Jaipur 303007 Rajasthan India
| | - Mousumi Debnath
- Department of Bioscience Manipal University Jaipur Jaipur 303007 Rajasthan India
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30
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Lázaro-Mass S, Gómez-Cornelio S, Castillo-Vidal M, Álvarez-Villagomez C, Quintana P, De la Rosa-García S. Biodegradation of hydrocarbons from contaminated soils by microbial consortia: a laboratory microcosm study. ELECTRON J BIOTECHN 2022. [DOI: 10.1016/j.ejbt.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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31
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Biodegradation of Petroleum Hydrocarbons by Drechsleraspicifera Isolated from Contaminated Soil in Riyadh, Saudi Arabia. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196450. [PMID: 36234987 PMCID: PMC9572601 DOI: 10.3390/molecules27196450] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/02/2022] [Accepted: 09/26/2022] [Indexed: 11/14/2022]
Abstract
Currently, the bioremediation of petroleum hydrocarbons employs microbial biosurfactants because of their public acceptability, biological safety, and low cost. These organisms can degrade or detoxify organic-contaminated areas, such as marine ecosystems. The current study aimed to test the oil-biodegradation ability of the fungus Drechslera spicifera, which was isolated from contaminated soil samples in Riyadh, Saudi Arabia. We used hydrocarbon tolerance, scanning electron microscopy, DCPIP, drop-collapse, emulsification activity, recovery of biosurfactants, and germination assays to assess the biodegradation characteristics of the D. spicifera against kerosene, crude, diesel, used, and mixed oils. The results of DCPIP show that the highest oxidation (0.736 a.u.) was induced by crude oil on the 15th day. In contrast, kerosene and used oil had the highest measurements in emulsification activity and drop-collapse assays, respectively. Meanwhile, crude and used oils produced the highest amounts of biosurfactants through acid precipitation and solvent extraction assays. Furthermore, the biosurfactants stimulated the germination of tomato seeds by more than 50% compared to the control. These findings highlight the biodegradation ability of D. spicifera, which has been proven in the use of petroleum oils as the sole source of carbon. That might encourage further research to demonstrate its application in the cleaning of large, contaminated areas.
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32
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Zhao F, Wang Y, Hu X, Huang X. How to simply and efficiently screen microbial strains capable of anaerobic biosynthesis of biosurfactants: Method establishment, influencing factors and application example evaluation. Front Microbiol 2022; 13:989998. [PMID: 36171744 PMCID: PMC9511215 DOI: 10.3389/fmicb.2022.989998] [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: 07/09/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Abstract
Microbial resources capable of anaerobic biosynthesis of biosurfactants are increasingly interested for their application in oxygen-deficient environments, such as in-situ microbial enhanced oil recovery and anaerobic bioremediation. How to simply and efficiently screen microbial strains capable of anaerobic biosynthesis of biosurfactants need be further studied in depth. In this study, an efficient and simple screening method was established based on the oil displacement characteristic of biosurfactants combined with the anaerobic culture technology using microplate assays. Strains whose anaerobic culture in microwells can form oil displacement circles with diameters larger than 10 mm were screened for scale-up culture in anaerobic tubes. The screened strains which can reduce the surface tension of anaerobic culture to lower than 45 mN/m were verified as positive strains. Using this screening method, eight positive strains and thirteen positive strains were screened from oil reservoir produced water and oily sludge, respectively. Through phylogenetic analysis, some screened strains were identified as Pseudomonas sp., Bacillus sp., and Enterobacter sp. This study also found that more microbial strains might be isolated after enrichment culture of environmental samples, whereas more microbial species would be isolated without enrichment. Suspension of environmental samples prepared with distilled water or normal saline had no significant effect. The established screening method is highly targeted and efficient for microbial strains capable of anaerobic biosynthesis of biosurfactants. The diameter of oil displacement circle is a reliable screening indicator. This study will contribute to explore more microbial resources which can anaerobically biosynthesize biosurfactants.
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33
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Sánchez C. A review of the role of biosurfactants in the biodegradation of hydrophobic organopollutants: production, mode of action, biosynthesis and applications. World J Microbiol Biotechnol 2022; 38:216. [PMID: 36056983 DOI: 10.1007/s11274-022-03401-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 08/25/2022] [Indexed: 10/14/2022]
Abstract
The increasing influence of human activity and industrialization has adversely impacted the environment via pollution with organic contaminants, which are minimally soluble in water. These hydrophobic organopollutants may be present in sediment, water or biota and have created concern due to their toxic effects in mammals. The ability of microorganisms to degrade pollutants makes their use the most effective, inexpensive and ecofriendly method for environmental remediation. Microorganisms have the ability to produce natural surfactants (biosurfactants) that increase the bioavailability of hydrophobic organopollutants, which enables their use as carbon and energy sources. Due to microbial diversity in production, and the biodegradability, nontoxicity, stability and specific activity of the surfactants, the use of microbial surfactants has the potential to overcome problems associated with contamination by hydrophobic organopollutants.This review provides an overview of the current state of knowledge regarding microbial surfactant production, mode of action in the biodegradation of hydrophobic organopollutants and biosynthetic pathways as well as their applications using emergent strategy tools to remove organopollutants from the environment. It is also specified for the first time that biosurfactants are produced either as growth-associated products or secondary metabolites, and are produced in different amounts by a wide range of microorganisms.
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Affiliation(s)
- Carmen Sánchez
- Laboratory of Biotechnology, Research Centre for Biological Sciences, Universidad Autónoma de Tlaxcala, C.P. 90120, Ixtacuixtla, Tlaxcala, Mexico.
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34
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Gaur VK, Gupta S, Pandey A. Evolution in mitigation approaches for petroleum oil-polluted environment: recent advances and future directions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:61821-61837. [PMID: 34420173 DOI: 10.1007/s11356-021-16047-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Increasing petroleum consumption and a rise in incidental oil spillages have become global concerns owing to their aquatic and terrestrial toxicity. Various physicochemical and biological treatment strategies have been studied to tackle them and their impact on environment. One of such approaches in this regard is the use of microbial processes due to their being "green" and also apparent low cost and high effectiveness. This review presents the advancement in the physical and biological remediation methods and their progressive efficacy if employed in combination of hybrid modes. The use of biosurfactants and/or biochar along with microbes seems to be a more effective bioremediation approach as compared to their individual effects. The lacuna in research at community or molecular level has been overcome by the recent introduction of "-omics" technology in hydrocarbon degradation. Thus, the review further focuses on presenting the state-of-art information on the advancement of petroleum bioremediation strategies and identifies the research gaps for achieving total mitigation of petroleum oil.
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Affiliation(s)
- Vivek Kumar Gaur
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India
| | | | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, India.
- Centre for Energy and Environmental Sustainability, Lucknow, 226029, India.
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35
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Gaur VK, Gautam K, Sharma P, Gupta P, Dwivedi S, Srivastava JK, Varjani S, Ngo HH, Kim SH, Chang JS, Bui XT, Taherzadeh MJ, Parra-Saldívar R. Sustainable strategies for combating hydrocarbon pollution: Special emphasis on mobil oil bioremediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 832:155083. [PMID: 35395309 DOI: 10.1016/j.scitotenv.2022.155083] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/01/2022] [Accepted: 04/03/2022] [Indexed: 05/21/2023]
Abstract
The global rise in industrialization and vehicularization has led to the increasing trend in the use of different crude oil types. Among these mobil oil has major application in automobiles and different machines. The combustion of mobil oil renders a non-usable form that ultimately enters the environment thereby causing problems to environmental health. The aliphatic and aromatic hydrocarbon fraction of mobil oil has serious human and environmental health hazards. These components upon interaction with soil affect its fertility and microbial diversity. The recent advancement in the omics approach viz. metagenomics, metatranscriptomics and metaproteomics has led to increased efficiency for the use of microbial based remediation strategy. Additionally, the use of biosurfactants further aids in increasing the bioavailability and thus biodegradation of crude oil constituents. The combination of more than one approach could serve as an effective tool for efficient reduction of oil contamination from diverse ecosystems. To the best of our knowledge only a few publications on mobil oil have been published in the last decade. This systematic review could be extremely useful in designing a micro-bioremediation strategy for aquatic and terrestrial ecosystems contaminated with mobil oil or petroleum hydrocarbons that is both efficient and feasible. The state-of-art information and future research directions have been discussed to address the issue efficiently.
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Affiliation(s)
- Vivek Kumar Gaur
- School of Energy and Chemical Engineering, UNIST, Ulsan 44919, Republic of Korea; Centre for Energy and Environmental Sustainability, Lucknow, India; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India
| | - Krishna Gautam
- Centre for Energy and Environmental Sustainability, Lucknow, India
| | - Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, India
| | - Pallavi Gupta
- Bioscience and Biotechnology Department, Banasthali University, Rajasthan, India
| | | | | | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Xuan-Thanh Bui
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, Viet Nam; Key Laboratory of Advanced Waste Treatment Technology, Vietnam National University Ho Chi Minh (VNU-HCM), Linh Trung ward, Thu Duc district, Ho Chi Minh City 700000, Viet Nam
| | | | - Roberto Parra-Saldívar
- Escuela de Ingeniería y Ciencias-Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Campus Monterrey, Mexico
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36
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Sharma P, Rekhi P, Kumari S, Debnath M. Deciphering the molecular diversity of related halophilic
Bacillus
sp.
isolated from
Sambhar Lake
and the functional characterizations of surfactin. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Priyanka Sharma
- Department of Biosciences Manipal University Jaipur Jaipur India
| | - Pavni Rekhi
- Department of Biosciences Manipal University Jaipur Jaipur India
| | - Sapna Kumari
- Department of Biosciences Manipal University Jaipur Jaipur India
| | - Mousumi Debnath
- Department of Biosciences Manipal University Jaipur Jaipur India
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37
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Al-Otibi F, Al-Zahrani RM, Marraiki N. The crude oil biodegradation activity of Candida strains isolated from oil-reservoirs soils in Saudi Arabia. Sci Rep 2022; 12:10708. [PMID: 35739163 PMCID: PMC9226172 DOI: 10.1038/s41598-022-14836-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 06/13/2022] [Indexed: 11/15/2022] Open
Abstract
Crude oil (petroleum) is a naturally occurring complex composed of hydrocarbon deposits and other organic materials. Bioremediation of crude oil-polluted sites is restricted by the biodiversity of indigenous microflora. They possess complementary substrates required for degrading the different hydrocarbons. In the current study, four yeast strains were isolated from different oil reservoirs in Riyadh, Saudi Arabia. The oil-biodegradation ability of these isolates showed variable oxidation effects on multiple hydrocarbons. The scanning electron microscopy (SEM) images showed morphological changes in Candida isolates compared to the original structures. The drop-collapse and oil emulsification assays showed that yeast strains affected the physical properties of tested hydrocarbons. The content of biosurfactants produced by isolated strains was quantified in the presence of different hydrocarbons to confirm the oil displacement activity. The recovery assays included acid precipitation, solvent extraction, ammonium sulfate, and zinc sulfate precipitation methods. All these methods revealed that the amount of biosurfactants correlates to the type of tested hydrocarbons, where the highest amount was produced in crude oil contaminated samples. In conclusion, the study highlights the importance of Candida isolated from contaminated soils for bioremediation of petroleum oil pollution. That raises the need for further analyses on the microbes/hydrocarbon degradation dynamics.
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Affiliation(s)
- Fatimah Al-Otibi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia.
| | - Rasha M Al-Zahrani
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Najat Marraiki
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
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38
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Firoozbakht M, Sepahi AA, Rashedi H, Yazdian F. Investigating the effect of nanoparticle on phenanthrene biodegradation by Labedella gwakjiensis strain KDI. Biodegradation 2022; 33:441-460. [PMID: 35732966 DOI: 10.1007/s10532-022-09991-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 06/06/2022] [Indexed: 11/02/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), as persistent organic contaminants, are a major source of concern due to their toxic effect on ecosystems and human health. This study attempted to isolate halotolerant PAHs degrading bacteria from saline oil-contaminated soils. Among the isolates, strain KDI with the highest 16S rRNA gene sequence similarity to Labedella gwakjiensis was able to reduce surface tension (ST) from 65.42 to 26.60 mN m-1 and increase the emulsification index to 81.04%, as a result of significant biosurfactant production. Response Surface Methodology (RSM) analysis was applied to optimize the factors, i.e. PAHs concentration and NaCl concentration as well as to determine the effect of these important variables on PAHs biodegradation. The Carbon Quantum Dots. Iron Oxide (CQDs.Fe3O4) nanoparticles were characterized by several popular analytical techniques, after which the effect of CQD.Fe3O4 nanoparticles on biodegradation was examined. PAHs biodegradation rate and efficiency of strain KDI to degrade PHE in the presence of CQD.Fe3O4 nanoparticles was analyzed by GC. According to the results during biodegradation both the concentration of PAHs and the amount of NaCl were effective. The biodegradation rate significantly increased in the presence of CQD.Fe3O4. The highest biodegradation of PHE occurred in the presence of 0.5 g/L of CQD.Fe3O4 which was 63.63% and 81.77% after 48 and 72 h of incubation. To the best of our knowledge, this is the first report on optimization of PAHs concentration and salinity by RSM and nanobioremediation of PHE using a bacterial strain in the presence of CQD.Fe3O4 nanoparticles.
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Affiliation(s)
- Maryam Firoozbakht
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Abbas Akhavan Sepahi
- Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University, North Tehran Branch, Tehran, Iran.
| | - Hamid Rashedi
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran
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39
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Zhao Z, Li C, Jiang L, Wu D, Shi H, Xiao G, Guan Y, Kang X. Occurrence and distribution of antibiotic resistant bacteria and genes in the Fuhe urban river and its driving mechanism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 825:153950. [PMID: 35189229 DOI: 10.1016/j.scitotenv.2022.153950] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/13/2022] [Accepted: 02/13/2022] [Indexed: 06/14/2023]
Abstract
Antibiotic resistance genes (ARGs) in urban rivers can affect human health via the food chain and human pathogenic bacteria diffusion. Sediment can be a sink for ARGs, causing second sources of ARG contamination through diffusion. Therefore, we evaluated the effects of total petroleum hydrocarbons (TPHs) and phytoplankton on the distribution of the ARGs in the sediment and water of Fuhe river in Baoding city, China. The ARGs and human pathogenic bacteria in urban river were analyzed, and the phytoplankton and bacterial abundance, TPH, and physicochemical parameters ranked using the partial least squares path modelling (PLS-PM) and aggregated boosted tree (ABT) analysis. The main ARGs in Fuhe river sediment were sulfonamide and tetracycline resistance genes, with sul2 exhibiting the highest level. The main human pathogenic bacteria in the pathogens pool were Clostridium, Bacillus and Burkholderiaceae, with Clostridium demonstrating a positive correlation with SulAfolP01. The PLS-PM analysis confirmed that, among the multiple drivers, water physicochemical factors, TPH, phytoplankton, and heavy metals positively and directly affected the ARG profiles in sediment while sediment heavy metals and bacterial communities did the similar effect. These factors (nutrient factors, heavy metals, and TPH) in water and sediment posed the opposite total effect on ARGs in the sediment, suggesting medium factors should have a conclusive effect on the distribution of ARGs in the sediment. The ABT analysis showed that dissolved oxygen (DO), total nitrogen (TN) and Chlorophyta were the most important factors affecting the ARGs distribution in the water, while TN affected the distribution of the genes in the sediment.
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Affiliation(s)
- Zhao Zhao
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei, China; Hebei Key Laboratory of Wetland Ecology and Conservation, China.
| | - Chunchen Li
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei, China
| | - Liangying Jiang
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei, China
| | - Dayong Wu
- Hebei Key Laboratory of Wetland Ecology and Conservation, China
| | - Huijuan Shi
- Museum, Hebei University, Baoding, Hebei, China.
| | - Guohua Xiao
- Hebei Key Laboratory of Marine Biological Resources and Environment, Hebei Ocean and Fisheries Science Reseach Institute, Qinhuangdao, Hebei, China
| | - Yueqiang Guan
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei, China
| | - Xianjiang Kang
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei, China
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40
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Sharma J, Kapley A, Sundar D, Srivastava P. Characterization of a potent biosurfactant produced from Franconibacter sp. IITDAS19 and its application in enhanced oil recovery. Colloids Surf B Biointerfaces 2022; 214:112453. [PMID: 35305323 DOI: 10.1016/j.colsurfb.2022.112453] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 02/17/2022] [Accepted: 03/07/2022] [Indexed: 01/09/2023]
Abstract
Biosurfactants are surface-active molecules produced from microorganisms either on the cell surface or secreted extracellularly. Several biosurfactant producing microorganisms have been isolated to date, but they differ in their efficacy towards different types of hydrocarbons. Here, we report the isolation and characterization of a biosurfactant producing bacterium Franconibacter sp. IITDAS19 from crude oil contaminated soil. The biosurfactant was isolated, purified and characterized. It was identified as a glycolipid. It was found to be very stable at wide range of temperatures, pH and salt concentrations. It could reduce the surface tension of the water from 71 mN/m to 31 mN/m. IITDAS19 showed very high efficacy towards both aliphatic and aromatic hydrocarbons. It resulted in about 63% recovery of residual oil in a sand pack column. Our results suggested that the produced biosurfactant can be used for enhanced oil recovery. To our knowledge, this is the first report demonstrating the detailed characterization of a biosurfactant from Franconibacter spp.
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Affiliation(s)
- Jyoti Sharma
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, 110016, India
| | - Atya Kapley
- Council of Scientific and Industrial Research- National Environmental Engineering Research Institute (CSIR NEERI), Nehru Marg, Nagpur 440020, India
| | - Durai Sundar
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, 110016, India
| | - Preeti Srivastava
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, 110016, India.
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41
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Kaur H, Sangwan S, Sharma P, Singh S. Biosurfactant production prospects of a Gram-negative bacterium-Klebsiella pneumoniae ssp. ozaenae BK34. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:374. [PMID: 35437705 DOI: 10.1007/s10661-022-10033-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Increasing environmental concerns have brought natural surfactant produced by microorganisms into limelight due to their lesser toxicity, biodegradable nature, and retention of activity at extreme conditions. In the present investigation, the surfactant production perspective of capsulated Gram-negative bacilli Klebsiella pneumoniae ssp. ozaenae BK34 was explored. It was identified on the basis of PCR amplification of conserved region of 16SrRNA using species specific primers. Highest oil displacement and emulsification (E24) index of 6.8 cm and 20% along with 4.38-fold increase in biomass were attained using olive oil (2% (v/v)) as substrate. Incorporation of urea at 0.5% (w/v) concentration increased the oil displacement, E24 index, and drop diameter to 9.2 cm, 77.50%, and 0.80 cm, respectively, accompanied by 5.38-fold increase in biomass production. Biosurfactant level was recorded maximum at 30 °C as apparent from the oil displacement of 9.3 cm and E24 index of 75%. Reduction in incubation temperature to 25 °C abated oil displacement (5.2 cm) and E24 index (17.66%). Biosurfactant production was also appeared to be pH sensitive as shifting pH from 7.0 to 6.0 or 8.0 reduced the E24 index from 75 to 35% and 25%, respectively. Inoculum of stationary phase bacterial biomass at the proportion of 0.05% (w/v) was found adequate in triggering maximum biosurfactant production while the log phase biomass delayed the production significantly. Acid precipitation method was able to yield 7 g/L biosurfactant at pH 2. The surfactant was allocated to glycolipopeptide class on the basis of FTIR spectroscopy.
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Affiliation(s)
- Harpreet Kaur
- Department of Microbiology, CCS Haryana Agricultural University, Hisar, 125004, India
| | - Seema Sangwan
- Department of Microbiology, CCS Haryana Agricultural University, Hisar, 125004, India.
| | - Pankaj Sharma
- Department of Microbiology, CCS Haryana Agricultural University, Hisar, 125004, India
| | - Sushila Singh
- Department of Chemistry, CCS Haryana Agricultural University, Hisar, 125004, India
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42
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Edgcomb VP, Teske AP, Mara P. Microbial Hydrocarbon Degradation in Guaymas Basin-Exploring the Roles and Potential Interactions of Fungi and Sulfate-Reducing Bacteria. Front Microbiol 2022; 13:831828. [PMID: 35356530 PMCID: PMC8959706 DOI: 10.3389/fmicb.2022.831828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/04/2022] [Indexed: 11/13/2022] Open
Abstract
Hydrocarbons are degraded by specialized types of bacteria, archaea, and fungi. Their occurrence in marine hydrocarbon seeps and sediments prompted a study of their role and their potential interactions, using the hydrocarbon-rich hydrothermal sediments of Guaymas Basin in the Gulf of California as a model system. This sedimented vent site is characterized by localized hydrothermal circulation that introduces seawater sulfate into methane- and hydrocarbon-rich sediments, and thus selects for diverse hydrocarbon-degrading communities of which methane, alkane- and aromatics-oxidizing sulfate-reducing bacteria and archaea have been especially well-studied. Current molecular and cultivation surveys are detecting diverse fungi in Guaymas Basin hydrothermal sediments, and draw attention to possible fungal-bacterial interactions. In this Hypothesis and Theory article, we report on background, recent results and outcomes, and underlying hypotheses that guide current experiments on this topic in the Edgcomb and Teske labs in 2021, and that we will revisit during our ongoing investigations of bacterial, archaeal, and fungal communities in the deep sedimentary subsurface of Guaymas Basin.
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Affiliation(s)
| | - Andreas P. Teske
- Department of Earth, Marine and Environmental Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Paraskevi Mara
- Woods Hole Oceanographic Institution, Woods Hole, MA, United States
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43
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Production, characterization and growth inhibitory potential of metabolites produced by Pseudomonas and Bacillus species. SCIENTIFIC AFRICAN 2022. [DOI: 10.1016/j.sciaf.2021.e01085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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44
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Ortega Ramírez CA, Ching T, Yoza B, Li QX. Glycerol-assisted degradation of dibenzothiophene by Paraburkholderia sp. C3 is associated with polyhydroxyalkanoate granulation. CHEMOSPHERE 2022; 291:133054. [PMID: 34838841 DOI: 10.1016/j.chemosphere.2021.133054] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/06/2021] [Accepted: 11/22/2021] [Indexed: 05/28/2023]
Abstract
Glycerol is a biodiesel byproduct. In the present study, glycerol was used as a co-substrate during biodegradation of dibenzothiophene (DBT) by Paraburkholderia sp. C3. Polycyclic aromatic hydrocarbons (PAHs) are a group of persistent, ubiquitous and carcinogenic chemicals found in the environment. DBT is a major sulfur-containing PAH. The chemical properties of DBT make it an ideal model pollutant for examining the bioremediation of higher molecular weight PAHs. Bioremediation uses microbial catalysis for removal of environmental pollutants. Environmental microorganisms that encounter aromatic substrates such as heterocyclic PAHs develop unique characteristics that allow the uptake and assimilation of these cytotoxic substrates. Microbial adaptations include changes in membrane lipid composition, secretion of surface-active compounds and accumulation of lipid granules to withstand chemical toxicity. Biostimulation using more readily metabolized substrates can increase the biodegradation rate of PAHs, but the molecular mechanisms are not well understood. We analyzed the DBT biodegradation kinetics in C3, proteome changes and TEM micrographs in different culturing conditions. We utilized 2-bromoalkanoic lipid metabolic inhibitors to establish a correlation between polyhydroxyalkanoate (PHA) granule formation and the enhancement of DBT biodegradation induced by glycerol. This is the first description linking PHA biosynthesis, DBT biodegradation and 2-bromoalkanoic acids in a Paraburkholderia species.
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Affiliation(s)
- Camila A Ortega Ramírez
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Travers Ching
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Brandon Yoza
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, USA.
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45
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Khan AL, Numan M, Bilal S, Asaf S, Crafword K, Imran M, Al-Harrasi A, Al-Sabahi JN, Rehman NU, A-Rawahi A, Lee IJ. Mangrove's rhizospheric engineering with bacterial inoculation improve degradation of diesel contamination. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127046. [PMID: 34481398 DOI: 10.1016/j.jhazmat.2021.127046] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Mangroves (Avicennia marina) growing in intertidal areas are often exposed to diesel spills, adversely damaging the ecosystem. Herein, we showed for the first time that mangrove seedlings' associations with bacteria could reprogram host-growth, physiology, and ability to degrade diesel. We found four bacterial strains [Sphingomonas sp.-LK11, Rhodococcus corynebacterioides-NZ1, Bacillus subtilis-EP1 Bacillus safensis-SH10] exhibiting significant growth during diesel degradation (2% and 5%, v/v) and higher expression of alkane monooxygenase compared to control. This is in synergy with reduced long-chain n-alkanes (C24-C30) during microbe-diesel interactions in the bioreactor. Among individual strains, SH10 exhibited significantly higher potential to improve mangrove seedling's morphology, anatomy and growth during diesel treatment in rhizosphere compared to control. This was also evidenced by reduced activities and gene expression of antioxidant enzymes (catalases, peroxidases, ascorbic peroxidases, superoxide dismutases and polyphenol peroxidases) and lipid peroxidation during microbe-diesel interactions. Interestingly, we noticed significantly higher soil-enzyme activities (phosphatases and glucosidases) and essential metabolites in seedling's rhizosphere after bacteria and diesel treatments. Degradation of longer n-alkane chains in the rhizosphere also revealed a potential pathway that benefits mangroves by bacterial strains during diesel contaminations. Current results support microbes' application to rhizoengineer plant growth, responses, and phytoextraction abilities in environments contaminated with diesel spills. AVAILABILITY OF DATA AND MATERIALS: The datasets generated during the current study are available in the NCBI GenBank ((https://www.ncbi.nlm.nih.gov).
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Affiliation(s)
- Abdul Latif Khan
- Natural & Medical Sciences Research Center, University of Nizwa, 616, Oman; Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA.
| | - Muhammad Numan
- Department of Biology, University of North Carolina at Greensboro, NC 27412, USA
| | - Saqib Bilal
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Sajjad Asaf
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Kerri Crafword
- Department of Biology and Biochemistry, College of Natural Science and Mathematics, University of Houston, TX, USA
| | - Muhammad Imran
- School of Applied Biosciences, Kyungpook National University, Daegu Korea, South Korea
| | - Ahmed Al-Harrasi
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA.
| | - Jamal Nasser Al-Sabahi
- Central Instrument Laboratory, College of Agriculture and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Najeeb Ur Rehman
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Ahmed A-Rawahi
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - In-Jung Lee
- School of Applied Biosciences, Kyungpook National University, Daegu Korea, South Korea.
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46
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Zargar AN, Lymperatou A, Skiadas I, Kumar M, Srivastava P. Structural and functional characterization of a novel biosurfactant from Bacillus sp. IITD106. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127201. [PMID: 34560483 DOI: 10.1016/j.jhazmat.2021.127201] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 08/29/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Plant saponins are attractive biosurfactants and have been used to enhance phytoremediation. There are only limited reports on saponins produced by bacteria. Here, we report structural and functional characterization of a novel saponin produced by Bacillus sp. IITD106. Biosurfactant production was determined by emulsion index, drop collapse, oil displacement and hemolytic assays. The biosurfactant was stable over a range of temperature (30 °C to 70 °C), salinity (0-150 g liter-1) and pH (4-10). The surface tension of the medium reduced from 58.89 mN/m to 27.29 mN/m using the isolated biosurfactant. Chromatographic analysis revealed the biosurfactant to be a glycolipid. LCMS, FT-IR and NMR analysis identified the biosurfactant to be a saponin containing two sugar groups and a 5 ringed triterpene sapogenin unit. Genome sequencing of the strain revealed the presence of genes responsible for biosynthesis of saponin. Statistical optimization of culture medium resulted in 9.3-fold increase in biosurfactant production. Kinetics study of biosurfactant production performed in a stirred tank batch bioreactor resulted in 6.04 g liter-1 and 6.9 g liter-1 biomass and biosurfactant concentration, respectively. The biosurfactant was found to solubilize polycyclic aromatic hydrocarbons. The potential of cell free biosurfactant containing broth to enhance oil recovery was tested in a sand pack column and recovery of 63% of residual oil was observed. To our knowledge this is the first report of saponin production by any of the strains of Bacillus.
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Affiliation(s)
- Arif Nissar Zargar
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi 110016, India; Indian Oil Corporation, R&D Centre, Sector-13, Faridabad 121007, India; Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Anna Lymperatou
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Ioannis Skiadas
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Manoj Kumar
- Indian Oil Corporation, R&D Centre, Sector-13, Faridabad 121007, India
| | - Preeti Srivastava
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi 110016, India.
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47
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Sarubbo LA, Silva MDGC, Durval IJB, Bezerra KGO, Ribeiro BG, Silva IA, Twigg MS, Banat IM. Biosurfactants: Production, Properties, Applications, Trends, and General Perspectives. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108377] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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48
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Gao Y, Yuan L, Du J, Wang H, Yang X, Duan L, Zheng L, Bahar MM, Zhao Q, Zhang W, Liu Y, Fu Z, Wang W, Naidu R. Bacterial community profile of the crude oil-contaminated saline soil in the Yellow River Delta Natural Reserve, China. CHEMOSPHERE 2022; 289:133207. [PMID: 34890619 DOI: 10.1016/j.chemosphere.2021.133207] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 06/13/2023]
Abstract
Crude oil contamination greatly influence soil bacterial community. Proliferative microbes in the crude oil-contaminated soil are closely related to the living conditions. Oil wells in the Yellow River Delta Natural Reserve (YRDNR) region is an ideal site for investigating the bacterial community of crude oil-contaminated saline soil. In the present study, 18 soil samples were collected from the depths of 0-20 cm and 20-40 cm around the oil wells in the YRDNR. The bacterial community profile was analyzed through high-throughput sequencing to trace the oil-degrading aerobic and anaerobic bacteria. The results indicated that C15-C28 and C29-C38 were the main fractions of total petroleum hydrocarbon (TPH) in the sampled soil. These TPH fractions had a significant negative effect on bacterial biodiversity (Shannon, Simpson, and Chao1 indices), which led to the proliferation of hydrocarbon-degrading bacteria. A comprehensive analysis between the environmental factors and soil microbial community structure showed that Streptococcus, Bacillus, Sphingomonas, and Arthrobacter were the aerobic hydrocarbon-degrading bacteria; unidentified Rhodobacteraceae and Porticoccus were considered to be the possible facultative anaerobic bacteria with hydrocarbon biodegradation ability; Acidithiobacillus, SAR324 clade, and Nitrosarchaeum were predicted to be the anaerobic hydrocarbon-degrading bacteria in the sub-surface soil. Furthermore, large amount of carbon sources derived from TPH was found to cause depletion of bioavailable nitrogen in the soil. The bacteria associated with nitrogen transformation, such as Solirubrobacter, Candidatus Udaeobacter, Lysinibacillus, Bradyrhizobium, Sphingomonas, Mycobacterium, and Acidithiobacillus, were highly abundant; these bacteria may possess the ability to increase nitrogen availability in the crude oil-contaminated soil. The bacterial community functions were significantly different between the surface and the sub-surface soil, and the dissolved oxygen concentration in soil was considered to be potential influencing factor. Our results could provide useful information for the bioremediation of crude oil-contaminated saline soil.
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Affiliation(s)
- Yongchao Gao
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute, Shandong Provincial Key Laboratory of Applied Microbiology, 28789 East Jingshi Road, Jinan, 250103, China.
| | - Liyuan Yuan
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute, Shandong Provincial Key Laboratory of Applied Microbiology, 28789 East Jingshi Road, Jinan, 250103, China
| | - Jianhua Du
- Global Centre for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Hui Wang
- School of Resources and Environment, University of Jinan, Jinan, 250022, China
| | - Xiaodong Yang
- Department of Geography & Spatial Information Technology, Ningbo University, Ningbo, 315211, China.
| | - Luchun Duan
- Global Centre for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Liwen Zheng
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute, Shandong Provincial Key Laboratory of Applied Microbiology, 28789 East Jingshi Road, Jinan, 250103, China
| | - Md Mezbaul Bahar
- Global Centre for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Qingqing Zhao
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute, Shandong Provincial Key Laboratory of Applied Microbiology, 28789 East Jingshi Road, Jinan, 250103, China
| | - Wen Zhang
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute, Shandong Provincial Key Laboratory of Applied Microbiology, 28789 East Jingshi Road, Jinan, 250103, China
| | - Yanju Liu
- Global Centre for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Zhaoyang Fu
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute, Shandong Provincial Key Laboratory of Applied Microbiology, 28789 East Jingshi Road, Jinan, 250103, China
| | - Wei Wang
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute, Shandong Provincial Key Laboratory of Applied Microbiology, 28789 East Jingshi Road, Jinan, 250103, China
| | - Ravi Naidu
- Global Centre for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW, 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, Callaghan, NSW, 2308, Australia
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Dong H, Zheng A, He Y, Wang X, Li Y, Yu G, Gu Y, Banat IM, Sun S, She Y, Zhang F. Optimization and characterization of biosurfactant produced by indigenous Brevibacillus borstelensis isolated from a low permeability reservoir for application in MEOR. RSC Adv 2022; 12:2036-2047. [PMID: 35425221 PMCID: PMC8979201 DOI: 10.1039/d1ra07663a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 12/19/2021] [Indexed: 11/27/2022] Open
Abstract
Biosurfactants are expected to be a key factor for microbial enhanced oil recovery (MEOR). In this study, we described the novel biosurfactant-producing strain Brevibacillus borstelensis YZ-2 isolated from a low permeability oil reservoir. We purified and characterized the biosurfactants produced by this YZ-2 strain via thin-layer chromatography and MALDI-TOF-MS, revealing them to be fengycins. We additionally used a Box–Behnken design approach to optimize fermentation conditions in order to maximize the biosurfactants production. Core flooding experiments showed that biosurfactants produced by YZ-2 can significantly enhance crude oil recovery. Micro-model tests showed that emulsification and IFT reduction was the main EOR mechanism of the YZ biosurfactant in the oil wet model. In summary, these findings highlight the potential of Brevibacillus borstelensis YZ-2 and its metabolites for MEOR. Biosurfactants are expected to be a key factor for microbial enhanced oil recovery (MEOR).![]()
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Affiliation(s)
- Hao Dong
- College of Chemistry and Environmental Engineering, Yangtze University Jingzhou 434023 China
| | - Anying Zheng
- College of Petroleum Engineering, Yangtze University Wuhan Hubei 430010 China
| | - Yanlong He
- College of Petroleum Engineering, Xi'an Shiyou University Xi'an 710065 China
| | - Xiaotong Wang
- State Key Laboratory of Microbial Resources, CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences Beijing 100101 China.,University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Yang Li
- College of Petroleum Engineering, Yangtze University Wuhan Hubei 430010 China
| | - Gaoming Yu
- College of Petroleum Engineering, Yangtze University Wuhan Hubei 430010 China
| | - Yongan Gu
- College of Petroleum Engineering, Yangtze University Wuhan Hubei 430010 China
| | - I M Banat
- Faculty of Life and Health Sciences, School of Biomedical Sciences, University of Ulster Northern Ireland UK
| | - Shanshan Sun
- College of Petroleum Engineering, Yangtze University Wuhan Hubei 430010 China
| | - Yuehui She
- College of Petroleum Engineering, Yangtze University Wuhan Hubei 430010 China
| | - Fan Zhang
- The Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism, Ministry of Education, College of Energy Resources, China University of Geosciences (Beijing) Beijing 100083 China
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Guo P, Xu W, Tang S, Cao B, Wei D, Zhang M, Lin J, Li W. Isolation and Characterization of a Biosurfactant Producing Strain Planococcus sp. XW-1 from the Cold Marine Environment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:782. [PMID: 35055609 PMCID: PMC8776024 DOI: 10.3390/ijerph19020782] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 01/27/2023]
Abstract
One cold-adapted strain, named Planococcus sp. XW-1, was isolated from the Yellow Sea. The strain can produce biosurfactant with petroleum as sole source of carbon at low temperature (4 °C). The biosurfactant was identified as glycolipid-type biosurfactant species by thin-layer chromatography (TLC) and Fourier transform infrared spectroscopy (FTIR). It reduced the surface tension of water to 26.8 mN/m with a critical micelle concentration measurement of 60 mg/L. The produced biosurfactant possesses high surface activity at wide ranges of temperature (-18-105 °C), pH values (2-12), and salt concentrations (1-18%). The biosurfactant exhibited higher surface activity and higher growth rate of cells with hexadecane and diesel as carbon source. The strain Planococcus sp. XW-1 was also effective in degrading crude oil, after 21 days of growth at 4 °C in medium with 1% crude oil and 1% (v/v) bacteria broth, 54% of crude oil was degraded. The results suggest that Planococcus sp. XW-1 is a promising candidate for use in the bioremediation of petroleum-contaminated seawater in the Yellow Sea during winter. This study reported for the first time that Planococcus isolated from the Yellow Sea can produce biosurfactant using petroleum as the sole carbon source at low temperature (4 °C), showing its ecological role in the remediation of marine petroleum pollution.
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Affiliation(s)
| | | | | | | | | | | | - Jianguo Lin
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China; (P.G.); (W.X.); (S.T.); (B.C.); (D.W.); (M.Z.)
| | - Wei Li
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China; (P.G.); (W.X.); (S.T.); (B.C.); (D.W.); (M.Z.)
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