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D'Almeida AP, de Albuquerque TL, Rocha MVP. Recent advances in Emulsan production, purification, and application: Exploring bioemulsifiers unique potentials. Int J Biol Macromol 2024; 278:133672. [PMID: 38971276 DOI: 10.1016/j.ijbiomac.2024.133672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 07/02/2024] [Indexed: 07/08/2024]
Abstract
Bioemulsifiers are compounds produced by microorganisms that reduce the interfacial forces between hydrophobic substances and water. Due to their potential in the pharmaceutical and food industries and their efficiency in oil spill remediation, they have been the subject of study in the scientific community while being safe, biodegradable, and sustainable compared to synthetic options. These biomolecules have high molecular weight and polymeric structures, distinguishing them from traditional biosurfactants. Emulsan, a bioemulsifier exopolysaccharide, is produced by Acinetobacter strains and is highly efficient in forming stable emulsions. Its low toxicity and high potential as an emulsifying agent promote its application in pharmaceutical and food industries as a drug-delivery vehicle and emulsion stabilizer. Due to the high environmental impact of oil spills, bioemulsifiers have great potential for environmental applications, such as bioremediation. This unique feature gives them a distinct mechanism of action in forming emulsions, resulting in minimal environmental impact. A better understanding of these aspects can improve the use of bioemulsifiers and environmental remediation in various industries. This review will discuss the production and characterization of Emulsan, focusing on recent advancements in cultivation conditions, purification techniques, compound identification, and ecotoxicity.
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Lazzem A, Lekired A, Ouzari HI, Landoulsi A, Chatti A, El May A. Isolation and characterization of a newly chrysene-degrading Achromobacter aegrifaciens. Int Microbiol 2024; 27:857-869. [PMID: 37851202 DOI: 10.1007/s10123-023-00435-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/21/2023] [Accepted: 09/28/2023] [Indexed: 10/19/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are considered substances of potential human health hazards because of their resistance to biodegradation and carcinogenic index. Chrysene is a PAH with a high molecular weight (HMW) that poses challenges for its elimination from the environment. However, bacterial degradation is an effective, environmentally friendly, and cost-effective solution. In our study, we isolated a potential chrysene-degrading bacteria from crude oil-contaminated seawater (Bizerte, Tunisia). Based on 16SrRNA analysis, the isolate S5 was identified as Achromobacter aegrifaciens. Furthermore, the results revealed that A. aegrifaciens S5 produced a biofilm on polystyrene at 20 °C and 30 °C, as well as at the air-liquid (A-L) interface. Moreover, this isolate was able to swim and produce biosurfactants with an emulsification activity (E24%) over 53%. Chrysene biodegradation by isolate S5 was clearly assessed by an increase in the total viable count. Confirmation was obtained via gas chromatography-mass spectrometry (GC-MS) analyses. A. aegrifaciens S5 could use chrysene as its sole carbon and energy source, exhibiting an 86% degradation of chrysene on day 7. In addition, the bacterial counts reached their highest level, over 25 × 1020 CFU/mL, under the conditions of pH 7.0, a temperature of 30 °C, and a rotary speed of 120 rpm. Based on our findings, A. aegrifaciens S5 can be a potential candidate for bioremediation in HMW-PAH-contaminated environments.
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Affiliation(s)
- Assia Lazzem
- Laboratory of Risks Related to Environmental Stresses: Fight and Prevention, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia.
| | - Abdelmalek Lekired
- Laboratory of Microorganisms and Actives Biomolecules, Faculty of Sciences of Tunis, University Tunis El Manar, 2092, Tunis, Tunisia
| | - Hadda-Imene Ouzari
- Laboratory of Microorganisms and Actives Biomolecules, Faculty of Sciences of Tunis, University Tunis El Manar, 2092, Tunis, Tunisia
| | - Ahmed Landoulsi
- Laboratory of Risks Related to Environmental Stresses: Fight and Prevention, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia
| | - Abdelwaheb Chatti
- Laboratory of Risks Related to Environmental Stresses: Fight and Prevention, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia
| | - Alya El May
- Laboratory of Risks Related to Environmental Stresses: Fight and Prevention, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia
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Simpson W, Brigmon RL, Howard D, Jackson M, Kugler A, Brown V. Utilization of lasso peptides for biodegradation of polycyclic aromatic hydrocarbons. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e13197. [PMID: 38600035 PMCID: PMC11006600 DOI: 10.1111/1758-2229.13197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 06/20/2023] [Indexed: 04/12/2024]
Abstract
Many microbial genes involved in degrading recalcitrant environmental contaminants such as polycyclic aromatic hydrocarbons (PAHs) have been identified and characterized. However, all molecular mechanisms required for PAH utilization have not yet been elucidated. In this work, we demonstrate the proposed involvement of lasso peptides in the utilization of the PAH phenanthrene in Sphingomonas BPH. Transpositional mutagenesis of Sphingomonas BPH with the miniTn5 transposon yielded 3 phenanthrene utilization deficient mutants, #257, #1778, and #1782. In mutant #1782, Tn5 had inserted into the large subunit of the naph/bph dioxygenase gene. In mutant #1778, Tn5 had inserted into the B2 protease gene of a lasso peptide cluster. This finding is the first report on the role of lasso peptides in PAH utilization. Our studies also demonstrate that interruption of the lasso peptide cluster resulted in a significant increase in the amount of biosurfactant produced in the presence of glucose when compared to the wild-type strain. Collectively, these results suggest that the mechanisms Sphingomonas BPH utilizes to degrade phenanthrene are far more complex than previously understood and that the #1778 mutant may be a good candidate for bioremediation when glucose is applied as an amendment due to its higher biosurfactant production.
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Affiliation(s)
- Waltena Simpson
- Department of Biological and Physical SciencesSouth Carolina State UniversityOrangeburgSouth CarolinaUSA
| | | | - Daniel Howard
- Department of Biological and Physical SciencesSouth Carolina State UniversityOrangeburgSouth CarolinaUSA
| | - Makaela Jackson
- Department of Biological and Physical SciencesSouth Carolina State UniversityOrangeburgSouth CarolinaUSA
| | - Alex Kugler
- Savannah River National LaboratoryAikenSouth CarolinaUSA
| | - Victoria Brown
- Department of Biological and Physical SciencesSouth Carolina State UniversityOrangeburgSouth CarolinaUSA
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Antón-Herrero R, Chicca I, García-Delgado C, Crognale S, Lelli D, Gargarello RM, Herrero J, Fischer A, Thannberger L, Eymar E, Petruccioli M, D’Annibale A. Main Factors Determining the Scale-Up Effectiveness of Mycoremediation for the Decontamination of Aliphatic Hydrocarbons in Soil. J Fungi (Basel) 2023; 9:1205. [PMID: 38132804 PMCID: PMC10745009 DOI: 10.3390/jof9121205] [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: 11/14/2023] [Revised: 12/07/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
Soil contamination constitutes a significant threat to the health of soil ecosystems in terms of complexity, toxicity, and recalcitrance. Among all contaminants, aliphatic petroleum hydrocarbons (APH) are of particular concern due to their abundance and persistence in the environment and the need of remediation technologies to ensure their removal in an environmentally, socially, and economically sustainable way. Soil remediation technologies presently available on the market to tackle soil contamination by petroleum hydrocarbons (PH) include landfilling, physical treatments (e.g., thermal desorption), chemical treatments (e.g., oxidation), and conventional bioremediation. The first two solutions are costly and energy-intensive approaches. Conversely, bioremediation of on-site excavated soil arranged in biopiles is a more sustainable procedure. Biopiles are engineered heaps able to stimulate microbial activity and enhance biodegradation, thus ensuring the removal of organic pollutants. This soil remediation technology is currently the most environmentally friendly solution available on the market, as it is less energy-intensive and has no detrimental impact on biological soil functions. However, its major limitation is its low removal efficiency, especially for long-chain hydrocarbons (LCH), compared to thermal desorption. Nevertheless, the use of fungi for remediation of environmental contaminants retains the benefits of bioremediation treatments, including low economic, social, and environmental costs, while attaining removal efficiencies similar to thermal desorption. Mycoremediation is a widely studied technology at lab scale, but there are few experiences at pilot scale. Several factors may reduce the overall efficiency of on-site mycoremediation biopiles (mycopiles), and the efficiency detected in the bench scale. These factors include the bioavailability of hydrocarbons, the selection of fungal species and bulking agents and their application rate, the interaction between the inoculated fungi and the indigenous microbiota, soil properties and nutrients, and other environmental factors (e.g., humidity, oxygen, and temperature). The identification of these factors at an early stage of biotreatability experiments would allow the application of this on-site technology to be refined and fine-tuned. This review brings together all mycoremediation work applied to aliphatic petroleum hydrocarbons (APH) and identifies the key factors in making mycoremediation effective. It also includes technological advances that reduce the effect of these factors, such as the structure of mycopiles, the application of surfactants, and the control of environmental factors.
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Affiliation(s)
- Rafael Antón-Herrero
- Department of Agricultural Chemistry and Food Science, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (R.A.-H.); (E.E.)
| | | | - Carlos García-Delgado
- Department of Geology and Geochemistry, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Silvia Crognale
- Department for Innovation in Biological, Agri-Food and Forestry Systems, University of Tuscia, 01100 Tuscia, Italy; (S.C.); (D.L.); (M.P.); (A.D.)
| | - Davide Lelli
- Department for Innovation in Biological, Agri-Food and Forestry Systems, University of Tuscia, 01100 Tuscia, Italy; (S.C.); (D.L.); (M.P.); (A.D.)
| | - Romina Mariel Gargarello
- Water, Air and Soil Unit, Eurecat, Centre Tecnològic de Catalunya, 08242 Manresa, Spain; (R.M.G.); (J.H.)
| | - Jofre Herrero
- Water, Air and Soil Unit, Eurecat, Centre Tecnològic de Catalunya, 08242 Manresa, Spain; (R.M.G.); (J.H.)
| | | | | | - Enrique Eymar
- Department of Agricultural Chemistry and Food Science, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (R.A.-H.); (E.E.)
| | - Maurizio Petruccioli
- Department for Innovation in Biological, Agri-Food and Forestry Systems, University of Tuscia, 01100 Tuscia, Italy; (S.C.); (D.L.); (M.P.); (A.D.)
| | - Alessandro D’Annibale
- Department for Innovation in Biological, Agri-Food and Forestry Systems, University of Tuscia, 01100 Tuscia, Italy; (S.C.); (D.L.); (M.P.); (A.D.)
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Cavazzoli S, Squartini A, Sinkkonen A, Romantschuk M, Rantalainen AL, Selonen V, Roslund MI. Nutritional additives dominance in driving the bacterial communities succession and bioremediation of hydrocarbon and heavy metal contaminated soil microcosms. Microbiol Res 2023; 270:127343. [PMID: 36841130 DOI: 10.1016/j.micres.2023.127343] [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: 11/02/2022] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 02/23/2023]
Abstract
Soil quality and microbial diversity are essential to the health of ecosystems. However, it is unclear how the use of eco-friendly natural additives can improve the quality and microbial diversity of contaminated soils. Herein, we used high-throughput 16 S rDNA amplicon Illumina sequencing to evaluate the stimulation and development of microbial diversity and concomitant bioremediation in hydrocarbon (HC) and heavy metal (HM)-rich waste disposal site soil when treated with meat and bone meal (MBM), cyclodextrin (Cdx), and MBM and cyclodextrin mixture (Cdx MBM) over a period of 3 months. Results showed that natural additive treatments significantly increased the soil bacterial diversity (higher Shannon index, Simpson index and evenness) in a time-dependent manner, with Cdx eliciting the greatest enhancement. The two additives influenced the bacterial community succession patterns differently. MBM, while it enhanced the enrichment of specific genera Chitinophaga and Terrimonas, did not significantly alter the total bacterial community. In contrast, Cdx or Cdx MBM promoted a profound change of the bacteria community over time, with the enrichment of the genera Parvibaculum, Arenimonas and unclassified Actinobacteria. These results provide evidence on the involvement of the two natural additives in coupling HC and HM bioremediation and bacterial community perturbations, and thus illustrates their potential application in ecologically sound bioremediation technologies for contaminated soils.
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Affiliation(s)
- Simone Cavazzoli
- Department of Civil, Environmental and Mechanical Engineering, DICAM, University of Trento, Via Mesiano 77, 38123 Trento, Italy; Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, Lahti FI-15140, Finland.
| | - Andrea Squartini
- Department of Agronomy, Food, Natural Resources, Animals and Environment, DAFNAE, University of Padova, Viale dell'Università 16, Legnaro 35020, Italy
| | - Aki Sinkkonen
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, Lahti FI-15140, Finland; Natural Resources Institute Finland, Luke, Horticulture Technologies, Turku, Helsinki, Finland
| | - Martin Romantschuk
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, Lahti FI-15140, Finland
| | - Anna-Lea Rantalainen
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, Lahti FI-15140, Finland
| | - Ville Selonen
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, Lahti FI-15140, Finland
| | - Marja I Roslund
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, Lahti FI-15140, Finland; Department of Agronomy, Food, Natural Resources, Animals and Environment, DAFNAE, University of Padova, Viale dell'Università 16, Legnaro 35020, Italy
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Biosurfactant Production from Pineapple Waste and Application of Experimental Design and Statistical Analysis. Appl Biochem Biotechnol 2023; 195:386-400. [PMID: 36083431 DOI: 10.1007/s12010-022-04159-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2022] [Indexed: 01/13/2023]
Abstract
The use of non-conventional carbon sources for biosurfactant-producing microorganisms is a promising alternative in fermentation to substitute costly substrates. So, the current research used pineapple peel as a cost-effective and renewable substrate because of its rich composition in minerals and sugars and high availability. Following a 22 full factorial design, a bacterial strain of Bacillus subtilis produced biosurfactants in fermentative media containing different concentrations of glucose and concentrated pineapple peel juice (CPPJ). The influence of these two independent variables was evaluated according to three different responses: surface tension reduction rate (STRR), emulsification index (EI24), and concentration of semi-purified biosurfactant (SPB). The maximum value for STRR (57.63%) was obtained in media containing 0.58% glucose (w/v) and 5.82% CPPJ (v/v), while the highest EI24 response (58.60%) was observed at 2% glucose (w/v) and 20% CPPJ (v/v) and maximum SPB (1.28 g/L) at 3.42% glucose (w/v) and 34.18% CPPJ (v/v). Statistical analysis indicated that the CPPJ variable mostly influenced the STRR and SPB responses, whereas the EI24 was significantly influenced by pineapple peel juice and glucose contents.
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Cavazzoli S, Selonen V, Rantalainen AL, Sinkkonen A, Romantschuk M, Squartini A. Natural additives contribute to hydrocarbon and heavy metal co-contaminated soil remediation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 307:119569. [PMID: 35680061 DOI: 10.1016/j.envpol.2022.119569] [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: 02/12/2022] [Revised: 05/23/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
A biological treatment method was tested in laboratory conditions for the removal of hydrocarbons contained in a waste disposal soil sample consisting of excavated sandy soil from a former fueling station. Two fractions of hydrocarbons were quantified by GC-FID: diesel (C10-C21) and lubricant oil (C22-C40). Meat and bone meal (MBM, 1% w/w) was used as a bio-stimulant agent for soil organisms. Cyclodextrin, an oligosaccharide produced from starch by enzymatic conversion, was also used to assess its ability to improve the bioavailability/biodegradability of hydrocarbons in the soil. Parameters such as temperature, pH, water content and aeration (O2 availability) were monitored and optimized to favor degradation processes. Two different experimental tests were prepared: one to measure the degradation of hydrocarbons; the other to monitor the mobility of some elements in the soil and in the leachate produced by watering with tap water. Soil samples treated with MBM and cyclodextrin showed, over time, a greater removal of the more persistent hydrocarbon fraction (lubricant oil). MBM-treated soils underwent a faster hydrocarbon removal kinetic, especially in the first treatment period. However, the final hydrocarbon concentrations are comparable in all treatments, including control. Over time, the effect of cyclodextrin on hydrocarbon degradation seemed to be relevant. MBM-treated soils sequestered lead in the very first weeks. These results highlight the intrinsic capacity of soil, and its indigenous microbial communities, to degrade petroleum hydrocarbons and suggest that MBM-induced bioremediation is a promising, environmentally friendly technology which should be considered when dealing with hydrocarbon/heavy metal co-contaminated soils.
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Affiliation(s)
- Simone Cavazzoli
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123, Trento, Italy; Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, FI-15140, Lahti, Finland.
| | - Ville Selonen
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, FI-15140, Lahti, Finland
| | - Anna-Lea Rantalainen
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, FI-15140, Lahti, Finland
| | - Aki Sinkkonen
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, FI-15140, Lahti, Finland; Natural Resources Institute Finland Luke, Itäinen Pitkäkatu 4 A, 20520, Turku, Finland
| | - Martin Romantschuk
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, FI-15140, Lahti, Finland
| | - Andrea Squartini
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Via Dell'Università 16, 35020, Legnaro, Italy
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Abbot V, Paliwal D, Sharma A, Sharma P. A review on the physicochemical and biological applications of biosurfactants in biotechnology and pharmaceuticals. Heliyon 2022; 8:e10149. [PMID: 35991993 PMCID: PMC9389252 DOI: 10.1016/j.heliyon.2022.e10149] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/17/2022] [Accepted: 07/28/2022] [Indexed: 01/22/2023] Open
Abstract
Biosurfactants are the chemical compounds that are obtained from various micro-organisms and possess the ability to decrease the interfacial tension between two similar or different phases. The importance of biosurfactants in cosmetics, pharmaceuticals, biotechnology, agriculture, food and oil industries has made them an interesting choice in various physico-chemical and biological applications. With the aim of representing different properties of biosurfactants, this review article is focused on emphasizing their applications in various industries summarizing their importance in each field. Along with this, the production of recently developed chemically and biologically important biosurfactants has been outlined. The advantages of biosurfactants over the chemical surfactants have also been discussed with emphasis on the latest findings and research performed worldwide. Moreover, the chemical and physical properties of different biosurfactants have been presented and different characterization techniques have been discussed. Overall, the review article covers the latest developments in biosurfactants along with their physico-chemical properties and applications in different fields, especially in pharmaceuticals and biotechnology.
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Affiliation(s)
- Vikrant Abbot
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan (Himachal Pradesh) 173234, India
- Faculty of Pharmaceutical Sciences, PCTE Group of Institutes, Campus-2, Near Baddowal Cantt. Ferozpur Road, Ludhiana (Punjab) 142021, India
| | - Diwakar Paliwal
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan (Himachal Pradesh) 173234, India
| | - Anuradha Sharma
- Faculty of Pharmaceutical Sciences, PCTE Group of Institutes, Campus-2, Near Baddowal Cantt. Ferozpur Road, Ludhiana (Punjab) 142021, India
| | - Poonam Sharma
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan (Himachal Pradesh) 173234, India
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de Carvalho Filho JAA, da Cruz HM, Fernandes BS, Motteran F, de Paiva ALR, Pereira Cabral JJDS. Efficiency of the bank filtration technique for diclofenac removal: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 300:118916. [PMID: 35104558 DOI: 10.1016/j.envpol.2022.118916] [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: 10/24/2020] [Revised: 01/07/2022] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
Bank filtration (BF) has been employed for more than a century for the production of water with a better quality, and it has been showing satisfactory results in diclofenac attenuation. Considered the most administered analgesic in the world, diclofenac has been frequently detected in water bodies. Besides being persistent in the environment, this compound is not completely removed by the conventional water treatments, drinking water treatment plants (DWTPs) and wastewater treatment plant (WWTPs). BF has a high complexity, whose efficiency depends on the characteristics of the observed pollutant and on the environment where the system in installed, which is why this is a topic that has been constantly studied. Nevertheless, studies present the behavior of diclofenac during the BF process. In this context, this research performed the evaluation of the factors and the biogeochemical processes that influence the efficiency of the BF technique in diclofenac removal. The aerobic conditions, higher temperatures, microbial biomass density, hydrogen potential close to neutrality and sediments with heterogeneous fractions are considered the ideal conditions in the aquifer for diclofenac removal. Nonetheless, there is no consensus on which of these factors has the greatest contribution on the mechanism of attenuation during BF. Studies with columns in laboratory and modeling affirm that the highest degradation rates occur in the first centimeters (5-50 cm) of the passage of water through the porous medium, in the environment known as hyporheic zone, where intense biogeochemical activities occur. Research has shown 100% removal efficiency for diclofenac persistent to compounds not removed during the BF process. However, half of the studies had removal efficiency that ranged between 80 and 100%. Therefore, the performance of more in-depth studies on the degradation and mobility of this compound becomes necessary for a better understanding of the conditions and biogeochemical processes which act in its attenuation.
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Affiliation(s)
- José Adson Andrade de Carvalho Filho
- Federal University of Pernambuco (UFPE), Department of Civil and Environmental Engineering (DECIV), Av. da Arquitetura, s/n. Cidade Universitária, 50740-550, Recife, Pernambuco, Brazil
| | - Hedmun Matias da Cruz
- Federal University of Pernambuco (UFPE), Department of Civil and Environmental Engineering (DECIV), Av. da Arquitetura, s/n. Cidade Universitária, 50740-550, Recife, Pernambuco, Brazil
| | - Bruna Soares Fernandes
- Federal University of Pernambuco (UFPE), Department of Civil and Environmental Engineering (DECIV), Av. da Arquitetura, s/n. Cidade Universitária, 50740-550, Recife, Pernambuco, Brazil
| | - Fabrício Motteran
- Federal University of Pernambuco (UFPE), Department of Civil and Environmental Engineering (DECIV), Av. da Arquitetura, s/n. Cidade Universitária, 50740-550, Recife, Pernambuco, Brazil
| | - Anderson Luiz Ribeiro de Paiva
- Federal University of Pernambuco (UFPE), Department of Civil and Environmental Engineering (DECIV), Av. da Arquitetura, s/n. Cidade Universitária, 50740-550, Recife, Pernambuco, Brazil.
| | - Jaime Joaquim da Silva Pereira Cabral
- Federal University of Pernambuco (UFPE), Department of Civil and Environmental Engineering (DECIV), Av. da Arquitetura, s/n. Cidade Universitária, 50740-550, Recife, Pernambuco, Brazil
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Péquin B, Cai Q, Lee K, Greer CW. Natural attenuation of oil in marine environments: A review. MARINE POLLUTION BULLETIN 2022; 176:113464. [PMID: 35231783 DOI: 10.1016/j.marpolbul.2022.113464] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/31/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Natural attenuation is an important process for oil spill management in marine environments. Natural attenuation affects the fate of oil by physical, chemical, and biological processes, which include evaporation, dispersion, dissolution, photo-oxidation, emulsification, oil particle aggregation, and biodegradation. This review examines the cumulative knowledge regarding these natural attenuation processes as well as their simulation and prediction using modelling approaches. An in-depth discussion is provided on how oil type, microbial community and environmental factors contribute to the biodegradation process. It describes how our understanding of the structure and function of indigenous oil degrading microbial communities in the marine environment has been advanced by the application of next generation sequencing tools. The synergetic and/or antagonist effects of oil spill countermeasures such as the application of chemical dispersants, in-situ burning and nutrient enrichment on natural attenuation were explored. Several knowledge gaps were identified regarding the synergetic and/or antagonistic effects of active response countermeasures on the natural attenuation/biodegradation process. This review highlighted the need for field data on both the effectiveness and potential detrimental effects of oil spill response options to support modelling and decision-making on their selection and application.
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Affiliation(s)
- Bérangère Péquin
- McGill University, Department of Natural Resource Sciences, Ste-Anne-de-Bellevue, Quebec, Canada.
| | - Qinhong Cai
- McGill University, Department of Natural Resource Sciences, Ste-Anne-de-Bellevue, Quebec, Canada
| | - Kenneth Lee
- Ecosystem Science, Fisheries and Oceans Canada, Ottawa, Ontario, Canada
| | - Charles W Greer
- McGill University, Department of Natural Resource Sciences, Ste-Anne-de-Bellevue, Quebec, Canada; Energy, Mining and Environment Research Centre, National Research Council Canada, Montreal, Quebec, Canada
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Ramdass AC, Rampersad SN. Detection and diversity of the mannosylerythritol lipid (MEL) gene cluster and lipase A and B genes of Moesziomyces antarcticus isolated from terrestrial sites chronically contaminated with crude oil in Trinidad. BMC Microbiol 2022; 22:43. [PMID: 35120442 PMCID: PMC8815271 DOI: 10.1186/s12866-021-02419-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 12/06/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Mannosylerythritol lipids (MELs) belong to the class of glycolipid biosurfactants and are produced by members of the Ustilago and Moesziomyces genera. Production of MELs is regulated by a biosynthetic gene cluster (MEL BGC). Extracellular lipase activity is also associated with MEL production. Most microbial glycolipid-producers are isolated from oil-contaminated environments. MEL-producing yeast that are capable of metabolizing crude oil are understudied, and there is very limited data on indigenous strains from tropical climates. Analysis of the MEL BGC and lipase genes in Trinidad M. antarcticus strains, using a gene-targeted approach, revealed a correlation between their intrinsic capability to degrade crude oil and their adaptation to survive in a chronically polluted terrestrial environment. RESULTS M. antarcticus was isolated from naturally-occurring crude oil seeps and an asphaltic mud volcano in Trinidad; these are habitats that have not been previously reported for this species. Genus identification was confirmed by the large-subunit (LSU) and the small-subunit (SSU) sequence comparisons and species identification was confirmed by ITS sequence comparisons and phylogenetic inference. The essential genes (Emt1, Mac1, Mac2, Mmf1) of the MEL BGC were detected with gene-specific primers. Emt1p, Mac1p and Mmf1p sequence analyses confirmed that the Trinidad strains harboured novel synonymous amino acid (aa) substitutions and structural comparisons revealed different regions of disorder, specifically for the Emt1p sequence. Functionality of each protein sequence was confirmed through motif mining and mutation prediction. Phylogenetic relatedness was inferred for Emt1p, Mac1p and Mmf1p sequences. The Trinidad strains clustered with other M. antarcticus sequences, however, the representative Trinidad M. antarcticus sequences consistently formed a separate, highly supported branch for each protein. Similar phylogenetic placement was indicated for LipA and LipB nucleotide and protein sequences. The Trinidad strains also demonstrated lipolytic activity in culture, with an ability to utilize different carbon sources. Comparative evolution of MEL BGC and LipA gene suggested early and late duplication events, depending on the gene, followed by a number of speciation events within Ustilaginaceae. M. antarcticus and M. aphidis were separated from all other members of Ustilaginaceae and two gene homologues were detected, one for each species. CONCLUSIONS Sequence analyses was based on a novel gene-targeted approach to analyze the essential genes of the MEL BGC and LipA and LipB genes of M. antarcticus strains from Trinidad. The findings indicated that these strains accumulated nucleotide mutations to a threshold level that did not affect the function of specific proteins encoded by the MEL BGC and LipA and LipB genes. The biosurfactant and lipase enzymes secreted by these Trinidad M. antarcticus strains facilitated their survival in oil-contaminated terrestrial environments. These findings suggest that the Trinidad strains should be explored as promising candidates for the commercial production of MEL biosurfactants and lipase enzymes.
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Affiliation(s)
- Amanda C. Ramdass
- Biochemistry Research Laboratory (Rm216), Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine, West Indies Trinidad and Tobago
| | - Sephra N. Rampersad
- Biochemistry Research Laboratory (Rm216), Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine, West Indies Trinidad and Tobago
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Martínez-Toledo Á, del Carmen Cuevas-Díaz M, Guzmán-López O, López-Luna J, Ilizaliturri-Hernández C. Evaluation of in situ biosurfactant production by inoculum of P. putida and nutrient addition for the removal of polycyclic aromatic hydrocarbons from aged oil-polluted soil. Biodegradation 2022; 33:135-155. [DOI: 10.1007/s10532-022-09973-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 01/18/2022] [Indexed: 12/07/2022]
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Madankar CS, Meshram A. Review on classification, physicochemical properties and applications of microbial surfactants. TENSIDE SURFACT DET 2022. [DOI: 10.1515/tsd-2021-2353] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
Biosurfactants are amphiphilic microbial compounds synthesized from plants and micro organisms that have both hydrophilic and hydrophobic zones, which are classified into liquid-liquid, liquid-solid and liquid-gas interfaces. Due to their versatile nature, low toxicity, and high reactivity at extreme temperatures, as well as – extremely important – their good biodegradability and environmental compatibility, biobased surfactants provide approaches for use in many environmental industries. Biosurfactants produced by microorganisms have potential applications in bioremediation as well as in the petroleum, agricultural, food, cosmetics and pharmaceutical industries. In this review article, we include a detailed overview of the knowledge obtained over the years, such as factors influencing bio-surfactant production and developments in the incorporation of biomolecules in different industries and future research needs.
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Affiliation(s)
- Chandu S. Madankar
- Department of Oils, Oleochemicals and Surfactants Technology , Institute of Chemical Technology , Mumbai , India
| | - Ashwini Meshram
- Department of Oils, Oleochemicals and Surfactants Technology , Institute of Chemical Technology , Mumbai , India
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Thiele-Bruhn S. The role of soils in provision of genetic, medicinal and biochemical resources. Philos Trans R Soc Lond B Biol Sci 2021; 376:20200183. [PMID: 34365823 PMCID: PMC8349636 DOI: 10.1098/rstb.2020.0183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/21/2021] [Indexed: 12/16/2022] Open
Abstract
Intact, 'healthy' soils provide indispensable ecosystem services that largely depend on the biotic activity. Soil health is connected with human health, yet, knowledge of the underlying soil functioning remains incomplete. This review highlights selected services, i.e. (i) soil as a genetic resource and hotspot of biodiversity, forming the basis for providing (ii) biochemical resources and (iii) medicinal services and goods. Soils harbour an unrivalled biodiversity of organisms, especially microorganisms. Some of the abilities of autochthonous microorganisms and their relevant enzymes serve (i) to improve natural soil functions and in particular plant growth, e.g. through beneficial plant growth-promoting, symbiotic and mycorrhizal microorganisms, (ii) to act as biopesticides, (iii) to facilitate biodegradation of pollutants for soil bioremediation and (iv) to yield enzymes or chemicals for industrial use. Soils also exert direct effects on human health. Contact with soil enriches the human microbiome, affords protection against allergies and promotes emotional well-being. Medicinally relevant are soil substrates such as loams, clays and various minerals with curative effects as well as pharmaceutically active organic chemicals like antibiotics that are formed by soil microorganisms. By contrast, irritating minerals, soil dust inhalation and misguided soil ingestion may adversely affect humans. This article is part of the theme issue 'The role of soils in delivering Nature's Contributions to People.
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Affiliation(s)
- Sören Thiele-Bruhn
- Soil Science, University of Trier, Behringstrasse 21, D-54286 Trier, Germany
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Mishra S, Lin Z, Pang S, Zhang Y, Bhatt P, Chen S. Biosurfactant is a powerful tool for the bioremediation of heavy metals from contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126253. [PMID: 34119972 DOI: 10.1016/j.jhazmat.2021.126253] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/26/2021] [Accepted: 05/26/2021] [Indexed: 05/05/2023]
Abstract
Heavy metal toxicity has become a pressing ecological problem that affects the ecosystems through bioaccumulation, representing a serious public health hazard. Many conventional strategies have been developed and applied to decontaminate and restore metal-contaminated areas. However, these conventional approaches are not very suitable and environmentally safe for heavy metal remediation because of their high operational costs, high energy requirements, post-waste disposal problems, and secondary pollutant generation. Thus, biosurfactant-based bioremediation of heavy metals is a sustainable and promising approach because of its biodegradation capability, economic effectiveness, and ecofriendly nature. Pseudomonas sp., Bacillus sp., Citrobacter freundii, and Candida tropicalis have been isolated as potential sources of biosurfactants and produce compounds such as surfactin, rhamnolipids, and sophorolipids. Owing to the severity of heavy metal pollution in certain parts of the environment, biosurfactants have garnered great interest and attention as an emerging multi-functional technology of the new century for successful removal of heavy metal pollutants. The present study describes the role of biosurfactants in the bioremediation of heavy metals from contaminated environments. Moreover, the interaction mechanism underlying biosurfactant-metal complexation and metal remediation are discussed. Based on the review of the literature, further research is warranted to elucidate the mechanistic roles and explore the structural characterization and gene regulation of biosurfactants to improve their productivity and expand their applicability in bioremediation.
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Affiliation(s)
- Sandhya Mishra
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Ziqiu Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Shimei Pang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Yuming Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Pankaj Bhatt
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China.
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Thakur S, Singh A, Sharma R, Aurora R, Jain SK. Biosurfactants as a Novel Additive in Pharmaceutical Formulations: Current Trends and Future Implications. Curr Drug Metab 2020; 21:885-901. [PMID: 33032505 DOI: 10.2174/1389200221666201008143238] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/09/2020] [Accepted: 08/13/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Surfactants are an important category of additives that are used widely in most of the formulations as solubilizers, stabilizers, and emulsifiers. Current drug delivery systems comprise of numerous synthetic surfactants (such as Cremophor EL, polysorbate 80, Transcutol-P), which are associated with several side effects though used in many formulations. Therefore, to attenuate the problems associated with conventional surfactants, a new generation of surface-active agents is obtained from the metabolites of fungi, yeast, and bacteria, which are termed as biosurfactants. OBJECTIVES In this article, we critically analyze the different types of biosurfactants, their origin along with their chemical and physical properties, advantages, drawbacks, regulatory status, and detailed pharmaceutical applications. METHODS 243 papers were reviewed and included in this review. RESULTS Briefly, Biosurfactants are classified as glycolipids, rhamnolipids, sophorolipids, trehalolipids, surfactin, lipopeptides & lipoproteins, lichenysin, fatty acids, phospholipids, and polymeric biosurfactants. These are amphiphilic biomolecules with lipophilic and hydrophilic ends and are used as drug delivery vehicles (foaming, solubilizer, detergent, and emulsifier) in the pharmaceutical industry. Despite additives, they have some biological activity as well (anti-cancer, anti-viral, anti-microbial, P-gp inhibition, etc.). These biomolecules possess better safety profiles and are biocompatible, biodegradable, and specific at different temperatures. CONCLUSION Biosurfactants exhibit good biomedicine and additive properties that can be used in developing novel drug delivery systems. However, more research should be driven due to the lack of comprehensive toxicity testing and high production cost which limits their use.
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Affiliation(s)
- Shubham Thakur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Amrinder Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Ritika Sharma
- Sri Sai College of Pharmacy, Badhani, Pathankot, 145001, India
| | - Rohan Aurora
- The International School Bangalore, Karnataka, 562125, India
| | - Subheet Kumar Jain
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, 143005, India
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Khilyas IV, Sorokina AV, Markelova MI, Belenikin M, Shafigullina L, Tukhbatova RI, Shagimardanova EI, Blom J, Sharipova MR, Cohen MF. Genomic and phenotypic analysis of siderophore-producing Rhodococcus qingshengii strain S10 isolated from an arid weathered serpentine rock environment. Arch Microbiol 2020; 203:855-860. [PMID: 33025059 DOI: 10.1007/s00203-020-02057-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/08/2020] [Accepted: 09/17/2020] [Indexed: 12/13/2022]
Abstract
The success of members of the genus Rhodococcus in colonizing arid rocky environments is owed in part to desiccation tolerance and an ability to extract iron through the secretion and uptake of siderophores. Here, we report a comprehensive genomic and taxonomic analysis of Rhodococcus qingshengii strain S10 isolated from eathered serpentine rock at the arid Khalilovsky massif, Russia. Sequence comparisons of whole genomes and of selected marker genes clearly showed strain S10 to belong to the R. qingshengii species. Four prophage sequences within the R. qingshengii S10 genome were identified, one of which encodes for a putative siderophore-interacting protein. Among the ten non-ribosomal peptides synthase (NRPS) clusters identified in the strain S10 genome, two show high homology to those responsible for siderophore synthesis. Phenotypic analyses demonstrated that R. qingshengii S10 secretes siderophores and possesses adaptive features (tolerance of up to 8% NaCl and pH 9) that should enable survival in its native habitat within dry serpentine rock.
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Affiliation(s)
- Irina V Khilyas
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region), Federal University, Kazan, Russian Federation.
| | - Alyona V Sorokina
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region), Federal University, Kazan, Russian Federation
| | - Maria I Markelova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region), Federal University, Kazan, Russian Federation
| | - Maksim Belenikin
- Department of Molecular and Biological Physics, Moscow Institute of Physics and Technology (State University), Dolgoprudny, Russia
| | - Lilia Shafigullina
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region), Federal University, Kazan, Russian Federation
| | - Rezeda I Tukhbatova
- Laboratory of Structural Biology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region), Federal University, Kazan, Russian Federation
| | - Elena I Shagimardanova
- Laboratory of Extreme Biology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region), Federal University, Kazan, Russian Federation
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Margarita R Sharipova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region), Federal University, Kazan, Russian Federation
| | - Michael F Cohen
- Department of Biology, Sonoma State University, Rohnert Park, CA, USA
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Cappelletti M, Presentato A, Piacenza E, Firrincieli A, Turner RJ, Zannoni D. Biotechnology of Rhodococcus for the production of valuable compounds. Appl Microbiol Biotechnol 2020; 104:8567-8594. [PMID: 32918579 PMCID: PMC7502451 DOI: 10.1007/s00253-020-10861-z] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/14/2020] [Accepted: 08/26/2020] [Indexed: 12/31/2022]
Abstract
Bacteria belonging to Rhodococcus genus represent ideal candidates for microbial biotechnology applications because of their metabolic versatility, ability to degrade a wide range of organic compounds, and resistance to various stress conditions, such as metal toxicity, desiccation, and high concentration of organic solvents. Rhodococcus spp. strains have also peculiar biosynthetic activities that contribute to their strong persistence in harsh and contaminated environments and provide them a competitive advantage over other microorganisms. This review is focused on the metabolic features of Rhodococcus genus and their potential use in biotechnology strategies for the production of compounds with environmental, industrial, and medical relevance such as biosurfactants, bioflocculants, carotenoids, triacylglycerols, polyhydroxyalkanoate, siderophores, antimicrobials, and metal-based nanostructures. These biosynthetic capacities can also be exploited to obtain high value-added products from low-cost substrates (industrial wastes and contaminants), offering the possibility to efficiently recover valuable resources and providing possible waste disposal solutions. Rhodococcus spp. strains have also recently been pointed out as a source of novel bioactive molecules highlighting the need to extend the knowledge on biosynthetic capacities of members of this genus and their potential utilization in the framework of bioeconomy. KEY POINTS: • Rhodococcus possesses promising biosynthetic and bioconversion capacities. • Rhodococcus bioconversion capacities can provide waste disposal solutions. • Rhodococcus bioproducts have environmental, industrial, and medical relevance. Graphical abstract.
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Affiliation(s)
- Martina Cappelletti
- Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Bologna, Italy.
| | - Alessandro Presentato
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | - Elena Piacenza
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Florence, Italy
| | - Andrea Firrincieli
- Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Bologna, Italy
| | - Raymond J Turner
- Department of Biological Sciences, Calgary University, Calgary, AB, Canada
| | - Davide Zannoni
- Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Bologna, Italy
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Ferreira INS, Rodríguez DM, Campos-Takaki GM, Andrade RFDS. Biosurfactant and bioemulsifier as promising molecules produced by Mucor hiemalis isolated from Caatinga soil. ELECTRON J BIOTECHN 2020. [DOI: 10.1016/j.ejbt.2020.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Potential of Biosurfactants’ Production on Degrading Heavy Oil by Bacterial Consortia Obtained from Tsunami-Induced Oil-Spilled Beach Areas in Miyagi, Japan. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8080577] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bioremediation is one of the promising environment-friendly approaches to eliminate oil contamination. However, heavy oil is known to degrade slowly due to its hydrophobicity. Therefore, microorganisms capable of producing biosurfactants are gaining substantial interest because of their potential to alter hydrocarbon properties and thereby speed up the degradation process. In this study, six bacterial consortia were obtained from the oil-spilled beach areas in Miyagi, Japan, and all of which exhibited high potential in degrading heavy oil measured by gas chromatography with flame ionization detector (GC-FID). The polymerase chain reaction—denaturing gradient gel electrophoresis (PCR-DGGE) and next-generation sequencing (NGS) revealed that the diverse microbial community in each consortium changed with subculture and became stable with a few effective microorganisms after 15 generations. The total petroleum hydrocarbons (TPH) degradation ability of the consortia obtained from a former gas station (C1: 81%) and oil refinery company (C6: 79%) was higher than that of the consortia obtained from wastewater treatment plant (WWTP) (C3: 67%, and C5: 73%), indicating that bacteria present in C1 and C6 were historically exposed to petroleum hydrocarbons. Moreover, it was intriguing that the consortium C4, also obtained from WWTP, exhibited high TPH degradation ability (77%). The NGS results revealed that two bacteria, Achromobacter sp. and Ochrobactrum sp., occupied more than 99% of the consortium C4, while no Pseudomonas sp. was found in C4, though this bacterium was observed in other consortia and is also known to be a potential candidate for TPH degradation as reported by previous studies. In addition, the consortium C4 showed high biosurfactant-producing ability among the studied consortia. To date, no study has reported the TPH degradation by the combination of Achromobacter sp. and Ochrobactrum sp.; therefore, the consortium C4 provided an excellent opportunity to study the interaction of and biosurfactant production by these two bacteria during TPH degradation.
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Sajid M, Ahmad Khan MS, Singh Cameotra S, Safar Al-Thubiani A. Biosurfactants: Potential applications as immunomodulator drugs. Immunol Lett 2020; 223:71-77. [DOI: 10.1016/j.imlet.2020.04.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/24/2020] [Accepted: 04/04/2020] [Indexed: 10/24/2022]
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Reddy DO, Milliken CE, Foreman K, Fox J, Simpson W, Brigmon RL. Bioremediation of Hexanoic Acid and Phenanthrene in Oil Sands Tailings by the Microbial Consortium BioTiger™. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 104:253-258. [PMID: 31898751 DOI: 10.1007/s00128-019-02776-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) and naphthenic acids (NAs) are toxic contaminants of environmental concern found in process water and mature fine tailings, or tailings, from the oil sands industry. BioTiger™, a patented microbial consortium of twelve natural environmental isolates, was found to cometabolically biodegrade the NA hexanoic acid and the PAH phenanthrene in the presence of tailings. Hexanoamide was found to be produced and consumed during cometabolism of hexanoic acid. Mechanistic analysis demonstrated three of the BioTiger™ strains generated biosurfactants with the bacterial adhesion to hydrocarbons assay, seven with the methylene blue active substances assay, and nine with a hemolysis assay. Serial transfers of the BioTiger™ consortium demonstrated the stability of hexanoic acid degradation over several generations. The results demonstrate that BioTiger™ cometabolically biodegrades combinations of phenanthrene and hexanoic acid in tailings. This work reveals the potential for in situ bioremediation of tailings with this natural microbial consortium.
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Affiliation(s)
| | | | - Koji Foreman
- Michigan State University, Lansing, MI, 48824, USA
| | - Jasmine Fox
- South Carolina State University, Orangeburg, SC, 29117, USA
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Enzyme-based strategy to eradicate monospecies Macrococcus caseolyticus biofilm contamination in dairy industries. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2019.104560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Fenibo EO, Ijoma GN, Selvarajan R, Chikere CB. Microbial Surfactants: The Next Generation Multifunctional Biomolecules for Applications in the Petroleum Industry and Its Associated Environmental Remediation. Microorganisms 2019; 7:E581. [PMID: 31752381 PMCID: PMC6920868 DOI: 10.3390/microorganisms7110581] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 11/30/2022] Open
Abstract
Surfactants are a broad category of tensio-active biomolecules with multifunctional properties applications in diverse industrial sectors and processes. Surfactants are produced synthetically and biologically. The biologically derived surfactants (biosurfactants) are produced from microorganisms, with Pseudomonas aeruginosa, Bacillus subtilis Candida albicans, and Acinetobacter calcoaceticus as dominant species. Rhamnolipids, sophorolipids, mannosylerithritol lipids, surfactin, and emulsan are well known in terms of their biotechnological applications. Biosurfactants can compete with synthetic surfactants in terms of performance, with established advantages over synthetic ones, including eco-friendliness, biodegradability, low toxicity, and stability over a wide variability of environmental factors. However, at present, synthetic surfactants are a preferred option in different industrial applications because of their availability in commercial quantities, unlike biosurfactants. The usage of synthetic surfactants introduces new species of recalcitrant pollutants into the environment and leads to undesired results when a wrong selection of surfactants is made. Substituting synthetic surfactants with biosurfactants resolves these drawbacks, thus interest has been intensified in biosurfactant applications in a wide range of industries hitherto considered as experimental fields. This review, therefore, intends to offer an overview of diverse applications in which biosurfactants have been found to be useful, with emphases on petroleum biotechnology, environmental remediation, and the agriculture sector. The application of biosurfactants in these settings would lead to industrial growth and environmental sustainability.
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Affiliation(s)
- Emmanuel O. Fenibo
- World Bank Africa Centre of Excellence, Centre for Oilfield Chemical Research, University of Port Harcourt, Port Harcourt 500272, Nigeria
| | - Grace N. Ijoma
- Institute for the Development of Energy for African Sustainability, University of South Africa, Roodepoort 1709, South Africa;
| | - Ramganesh Selvarajan
- Department of Environmental Science, University of South Africa, Florida Campus, Rooderpoort 1709, South Africa
| | - Chioma B. Chikere
- Department of Microbiology, Faculty of Science, University of Port Harcourt, Port Harcourt 500272, Nigeria;
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The Potential Applications of Bacillus sp. and Pseudomonas sp. Strains with Antimicrobial Activity against Phytopathogens, in Waste Oils and the Bioremediation of Hydrocarbons. Catalysts 2019. [DOI: 10.3390/catal9110959] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Biodegradation is one of the primary mechanisms for the elimination of petroleum and other hydrocarbon pollutants from the environment. This study presents the results obtained with two newly isolated microorganisms and their potential applications in bioremediation, agriculture, and industrial fields. Twenty-five strains of microorganisms were isolated from plant materials and were subject to a selection process on the basis of antimicrobial activity. Two bacterial strains, respectively Bacillus mycoides (Bm) and Pseudomonas putida (B1), were selected for further experiments, based on the largest inhibition zones against the phytopathogens Erwinia carotovora and Xanthomonas campestris. The production of biosurfactants and enzymes was evaluated in specific media. In order to assess the production of biosurfactants, submerged bioprocesses were carried out on Yeast Malt Peptone Glucose (YMPG), M44, Luria-Bertani (LB), and King B media (KB); the supernatants were used to form emulsions with heptane, octane, and sunflower oil, and the emulsifying indices were determined.
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Evaluation of the biological activity of the prepared nonionic polymeric based on the acrylated polyethylene glycol. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Evaluating rhamnolipid-enhanced washing as a first step in remediation of drill cuttings and petroleum-contaminated soils. J Adv Res 2019; 21:79-90. [PMID: 32071776 PMCID: PMC7015526 DOI: 10.1016/j.jare.2019.07.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 11/23/2022] Open
Abstract
Soil washing is an innovative approach to treatment of waste streams. Temperature has a significant effect on rhamnolipid enhanced soil washing. Drill cuttings and petroleum-impacted soil show similar optimum washing conditions. Maximum total petroleum hydrocarbon reduction in drill cuttings was 76.8%. Maximum total petroleum hydrocarbon reduction in soil was 58.5%.
Environmental pollution by petroleum hydrocarbons (PHCs) is a severe and widespread problem impacting human health and the environment. To combat this issue, innovative and sustainable treatment methods are required. This research study investigated rhamnolipid-enhanced washing of drill cuttings and petroleum-contaminated soil obtained from northeastern British Columbia in Canada. The efficiency of PHC reduction was analysed and quantified via a Gas Chromatography equipped with a Flame Ionization Detector. Optimum washing conditions for both drill cuttings and petroleum-contaminated soil were temperature of ∼23.5 °C (room temperature), rhamnolipid concentration of 500 mg/L, and a washing time of 30 min. The optimum stirring speed and solution-to-sample ratio for drill cuttings and petroleum-contaminated soil were 100 rpm; 1:1, and 200 rpm; 4:1 respectively. The maximum PHC reduction recorded for total petroleum hydrocarbon and PHC fractions – F2, F3 and F4 were 76.8%, 85.4%, 71.3% and 76.9% respectively for drill cuttings and 58.5%, 48.4%, 63.5% and 59.8% respectively for petroleum-contaminated soil. The results strongly suggest that soil washing is an effective step in the reduction of PHC and can be used as a first step in the treatment of drill cuttings and petroleum-contaminated soils.
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Abbasi S, Haeri SA, Sajjadifar S. Bio-dispersive liquid liquid microextraction based on nano rhamnolipid aggregates combined with molecularly imprinted-solid phase extraction for selective determination of paracetamol in human urine samples followed by HPLC. Microchem J 2019. [DOI: 10.1016/j.microc.2018.12.065] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Novel metagenome-derived ornithine lipids identified by functional screening for biosurfactants. Appl Microbiol Biotechnol 2019; 103:4429-4441. [DOI: 10.1007/s00253-019-09768-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/12/2019] [Accepted: 03/12/2019] [Indexed: 01/11/2023]
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30
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Zhang Y, Wang X, Qi Y, Xi F. Incineration Kinetic Analysis of Upstream Oily Sludge and Sectionalized Modeling in Differential/Integral Method. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16030384. [PMID: 30700030 PMCID: PMC6388273 DOI: 10.3390/ijerph16030384] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/22/2019] [Accepted: 01/25/2019] [Indexed: 11/16/2022]
Abstract
As the most significant solid residue generated in the oil production industry, upstream oily sludge was regarded as hazardous waste in China due to its toxicity and ignitability, and to date, the incineration process has been considered the most efficient method in practice. Due to the complicated components of oily sludge, a kinetic model of the incineration process was difficult to build, and is still absent in engineering use. In this study, multiple non-isothermal thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) analysis were applied for the kinetic analysis of upstream oily sludge in air conditions. A viewpoint regarding the rules to sectionalize the reaction stages was raised, and a differential integral method to obtain the incineration kinetic model was provided. The results showed that four stages that were divided based on the weight-loss regions in the TGA curves and the endothermic/exothermic sections in the DSC curves were suitable to obtain an incineration kinetic model of oily sludge. The integral method was beneficial for obtaining the average activation energy of each stage, and the differential method was suitable for gaining the nth-order reaction rate equation and the pre-exponential factor before the operating temperature became lower than 635.968 °C. The average activation energies of stages one, two, three, and four were 60.87 KJ/mol, 78.11 KJ/mol, 98.82 KJ/mol, and 15.96 KJ/mol, respectively. The nth-order reaction rate equations and pre-exponential factors of stages one, two, and three were 0.82, 3.50, and 2.50, and e 13.32 min - 1 , e 19.69 min - 1 , and e 21.00 min - 1 , respectively.
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Affiliation(s)
- Yanqing Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China.
| | - Xiaohui Wang
- Technical Test Center of Shengli Oil Field, Dongying 257001, China.
| | - Yuanfeng Qi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China.
| | - Fei Xi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China.
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31
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Kuyukina MS, Ivshina IB. Production of Trehalolipid Biosurfactants by Rhodococcus. BIOLOGY OF RHODOCOCCUS 2019. [DOI: 10.1007/978-3-030-11461-9_10] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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32
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The Role of Biosurfactants in the Continued Drive for Environmental Sustainability. SUSTAINABILITY 2018. [DOI: 10.3390/su10124817] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Biosurfactants are microbial products that have been increasingly researched due to their many identified advantages, such as low toxicity and high activity at extreme temperatures, but more importantly, they are biodegradable and compatible with the environment. Biosurfactants are versatile products with vast applications in the clean-up of environmental pollutants through biodegradation and bioremediation. They also have applications in the food, pharmaceutical, and other industries. These advantages and wide range of applications have led to the continued interest in biosurfactants. In particular, there is a growing discussion around environmental sustainability and the important role that biosurfactants will increasingly play in the near future, for example, via the use of renewable by-products as substrates, waste reduction, and potential reuse of the treated waste. This has resulted in increased attention on these microbial products in industry. Research highlighting the potential of biosurfactants in environmental sustainability is required to drive efforts to make biosurfactants more viable for commercial and large-scale applications; making them available, cheaper and economically sustainable. The present review discusses the unique relationship between biosurfactants and environmental sustainability, especially the role that biosurfactants play in the clean-up of environmental pollutants and, therefore, increasing environmental protection.
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Removal of Cadmium and Lead from Contaminated Soils Using Sophorolipids from Fermentation Culture of Starmerella bombicola CGMCC 1576 Fermentation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15112334. [PMID: 30360495 PMCID: PMC6267470 DOI: 10.3390/ijerph15112334] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/18/2018] [Accepted: 10/19/2018] [Indexed: 11/24/2022]
Abstract
Soil contaminated with Cd and Pb has caused sharp decrease of cultivatable soil and has been attracting increasing attention. Biosurfactants are efficient in solving the problem. However, little information is available about the influence of sophorolipids (SLs) on the remediation of Cd- or Pb-contaminated soil. The sophorolipids produced by Starmerella bombicola CGMCC 1576 were used to study the effects of Cd and Pb removal in batch soil washing from artificially contaminated soil. The removal efficiency of crude total SLs was better than both distilled water and synthetic surfactants. Furthermore, 83.6% of Cd and 44.8% of Pb were removed by 8% crude acidic SLs. Acidic SLs with high water solubility were more effective than lactonic SLs in enhancing remediation of heavy metal-contaminated soils. The complexation of Cd with the free carboxyl group of the acidic SLs was observed by Fourier-transform infrared spectroscopy study, and this complexation was effective in heavy metal removal from the soil. The fermentation broth of S. bombicola, without further preparation, removed 95% of Cd and 52% of Pb. These results suggested that SLs produced by S. bombicola could function as potential bioremediation agents for heavy metal-contaminated soil.
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Nzila A. Biodegradation of high-molecular-weight polycyclic aromatic hydrocarbons under anaerobic conditions: Overview of studies, proposed pathways and future perspectives. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 239:788-802. [PMID: 29751337 DOI: 10.1016/j.envpol.2018.04.074] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/15/2018] [Accepted: 04/17/2018] [Indexed: 05/20/2023]
Abstract
The biodegradation of low- and high-molecular-weight polycyclic aromatic hydrocarbons (PAHs) (LWM-PAHs and HMW-PAHs, respectively) has been studied extensively under aerobic conditions. Molecular O2 plays 2 critical roles in this biodegradation process. O2 activates the aromatic rings through hydroxylation prior to ring opening and serves as a terminal electron acceptor (TEA). However, several microorganisms have devised ways of activating aromatic rings, leading to ring opening (and thus biodegradation) when TEAs other than O2 are used (under anoxic conditions). These microorganisms belong to the sulfate-, nitrate-, and metal-ion-reducing bacteria and the methanogens. Although the anaerobic biodegradation of monocyclic aromatic hydrocarbons and LWM-PAH naphthalene have been studied, little information is available about the biodegradation of HMW-PAHs. This manuscript reviews studies of the anaerobic biodegradation of HMW-PAHs and identifies gaps that limit both our understanding and the efficiency of this biodegradation process. Strategies that can be employed to overcome these limitations are also discussed.
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Affiliation(s)
- Alexis Nzila
- King Fahd University of Petroleum and Minerals, Department of Life Sciences, PO Box 468, Dhahran, 31261, Saudi Arabia.
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35
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Rosas-Galván NS, Martínez-Morales F, Marquina-Bahena S, Tinoco-Valencia R, Serrano-Carreón L, Bertrand B, León-Rodríguez R, Guzmán-Aparicio J, Alvaréz-Berber L, Trejo-Hernández MR. Improved production, purification, and characterization of biosurfactants produced by Serratia marcescens SM3 and its isogenic SMRG-5 strain. Biotechnol Appl Biochem 2018; 65:690-700. [PMID: 29457659 DOI: 10.1002/bab.1652] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 02/13/2018] [Indexed: 01/12/2023]
Abstract
In this study, the biosurfactants (Bs) production of two Serratia marcescens strains (SM3 and its isogenic SMRG-5 strain) was improved and the tenso-active agents were purified and characterized. A 23 factorial design was used to evaluate the effect of nitrogen and carbon sources on the surface tension (ST) reduction and emulsion index (EI24 ) of the produced Bs. Optimum Bs production by SM3 was achieved at high concentrations of carbon and nitrogen, reducing ST to 26.5 ± 0.28 dynes/cm, with an EI24 of 79.9 ± 0.2%. Meanwhile, the best results for SMRG-5 were obtained at low concentrations, reducing the ST to 25.2 ± 0.2 dynes/cm, with an EI24 of 89.7 ± 0.28%. The optimal conditions for Bs production were scaled up in a 2-L reactor, yielding 4.8 and 5.2 g/L for SM3 and SMRG-5, respectively. Gas Chromatography-Mass Spectrometry (GC-MS) analysis revealed the presence of two different lipopeptides (hidrofobic fractions: octadecanoic and hexadecanoic acid for SM3 and SMRG5, respectively). Both strains were capable of benzo [a] pyrene removal (59% after 72 H of culture).
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Affiliation(s)
- Nashbly Sarela Rosas-Galván
- Laboratorio de Biotecnología Ambiental, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, México
| | - Fernando Martínez-Morales
- Laboratorio de Biotecnología Ambiental, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, México
| | - Silvia Marquina-Bahena
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, México
| | | | | | - Brandt Bertrand
- Laboratorio de Biotecnología Ambiental, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, México
| | - Renato León-Rodríguez
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, México
| | | | - Laura Alvaréz-Berber
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, México
| | - María R Trejo-Hernández
- Laboratorio de Biotecnología Ambiental, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, México
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36
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Tiwary M, Dubey AK. Characterization of Biosurfactant Produced by a Novel Strain ofPseudomonas aeruginosa, Isolate ADMT1. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Meenakshi Tiwary
- Division of Biological Sciences and Engineering; Netaji Subhas Institute of Technology-Delhi University, Sector-3, Dwarka; New Delhi 110078 India
| | - Ashok K. Dubey
- Division of Biological Sciences and Engineering; Netaji Subhas Institute of Technology-Delhi University, Sector-3, Dwarka; New Delhi 110078 India
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37
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Fan F, Zhang B, Morrill P, Husain T. Isolation of nitrate-reducing bacteria from an offshore reservoir and the associated biosurfactant production. RSC Adv 2018; 8:26596-26609. [PMID: 35541051 PMCID: PMC9083026 DOI: 10.1039/c8ra03377c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 07/13/2018] [Indexed: 11/21/2022] Open
Abstract
Biosurfactant producing nitrate-reducing bacteria (NRB) in anaerobic reservoir environments are closely associated with souring (H2S) control in the offshore oil and gas industry. Five NRB strains were screened from offshore produced water samples and all were identified as Pseudomonas stutzeri. Their biosurfactant producing abilities when fed on either glucose or glycerol media were investigated. P. stutzeri CX3 reduced the medium surface tension to 33.5 and 29.6 mN m−1, respectively, while growing on glucose or glycerol media. The CX3 strain was further inoculated to examine its growth performance, resulting in 32.4% and 94.5% of nitrate consumption over 228 hours of monitoring in two media, respectively. The composition analysis of the biosurfactant product generated by P. stutzeri CX3 was conducted through thin-layer chromatography, gas chromatography with a flame ionization detector (FID) and Fourier transform infrared spectroscopy (FT-IR). The biosurfactant product was identified as a mixture of a small part of lipopeptides and a large part of glycolipids while its critical micellar concentration (CMC) was as low as 35 mg L−1. The biosurfactant product demonstrated high stability over a wide range of temperature (4–121 °C), pH (2–10), and salinity (0–20% w/v) concentration. The results provided valuable technical and methodological support for effective offshore reservoir souring control and associated enhanced oil recovery activities. Biosurfactant producing nitrate-reducing bacteria (NRB) in anaerobic reservoir environments are closely associated with souring (H2S) control in the offshore oil and gas industry.![]()
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Affiliation(s)
- Fuqiang Fan
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory
- Faculty of Engineering and Applied Science
- Memorial University of Newfoundland
- St. John's
- Canada
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory
- Faculty of Engineering and Applied Science
- Memorial University of Newfoundland
- St. John's
- Canada
| | - Penny L. Morrill
- Earth Sciences
- Faculty of Science
- Memorial University of Newfoundland
- St. John's
- Canada
| | - Tahir Husain
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory
- Faculty of Engineering and Applied Science
- Memorial University of Newfoundland
- St. John's
- Canada
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38
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Kuyukina M, Krivoruchko A, Ivshina I. Hydrocarbon- and metal-polluted soil bioremediation: progress and challenges. MICROBIOLOGY AUSTRALIA 2018. [DOI: 10.1071/ma18041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The problem of soil contamination with petroleum hydrocarbons and heavy metals is becoming particularly acute for large oil-producing countries, like the Russian Federation. Both hydrocarbon and metal contaminants impact negatively the soil biota and human health, thus requiring efficient methods for their detoxification and elimination. Bioremediation of soil co-contaminated with hydrocarbon and metal pollutants is complicated by the fact that, although the two components must be treated differently, they mutually affect the overall removal efficiency. Heavy metals are reported to inhibit biodegradation of hydrocarbons by interfering with microbial enzymes directly involved in biodegradation or through the interaction with enzymes involved in general metabolism. Here we discuss recent progress and challenges in bioremediation of soils co-contaminated with hydrocarbons and heavy metals, focusing on selecting metal-resistant biodegrading strains and biosurfactant amendments.
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39
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Wang B, Wang Q, Liu W, Liu X, Hou J, Teng Y, Luo Y, Christie P. Biosurfactant-producing microorganism Pseudomonas sp. SB assists the phytoremediation of DDT-contaminated soil by two grass species. CHEMOSPHERE 2017; 182:137-142. [PMID: 28494357 DOI: 10.1016/j.chemosphere.2017.04.123] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 04/24/2017] [Accepted: 04/24/2017] [Indexed: 05/22/2023]
Abstract
Phytoremediation together with microorganisms may confer the advantages of both phytoremediation and microbial remediation of soils containing organic contaminants. In this system biosurfactants produced by Pseudomonas sp. SB may effectively help to increase the bioavailability of organic pollutants and thereby enhance their microbial degradation in soil. Plants may enhance the rhizosphere environment for microorganisms and thus promote the bioremediation of contaminants. In the present pot experiment study, dichlorodiphenyltrichloroethane (DDT) residues underwent an apparent decline after soil bioremediation compared with the original soil. The removal efficiency of fertilizer + tall fescue, fertilizer + tall fescue + Pseudomonas, fertilizer + perennial ryegrass, and fertilizer + perennial ryegrass + Pseudomonas treatments were 59.4, 65.6, 69.0, and 65.9%, respectively, and were generally higher than that in the fertilizer control (40.3%). Principal coordinates analysis (PCoA) verifies that plant species greatly affected the soil bacterial community irrespective of inoculation with Pseudomonas sp. SB. Furthermore, community composition analysis shows that Proteobacteria, Acidobacteria and Actinobacteria were the three dominant phyla in all groups. In particular, the relative abundance of Pseudomonas for fertilizer + tall fescue + Pseudomonas (0.25%) was significantly greater than fertilizer + tall fescue and this was related to the DDT removal efficiency.
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Affiliation(s)
- Beibei Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingling Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Wuxing Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Xiaoyan Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinyu Hou
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Teng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yongming Luo
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Peter Christie
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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40
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Chen Z, Zhang W, Wang G, Zhang Y, Gao Y, Boyd SA, Teppen BJ, Tiedje JM, Zhu D, Li H. Bioavailability of Soil-Sorbed Tetracycline to Escherichia coli under Unsaturated Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:6165-6173. [PMID: 28525258 DOI: 10.1021/acs.est.7b00590] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Increasing concentrations of anthropogenic antibiotics in soils are partly responsible for the proliferation of bacterial antibiotic resistance. However, little is known about how soil-sorbed antibiotics exert selective pressure on bacteria in unsaturated soils. This study investigated the bioavailability of tetracycline sorbed on three soils (Webster clay loam, Capac sandy clay loam, and Oshtemo loamy sand) to a fluorescent Escherichia coli bioreporter under unsaturated conditions using agar diffusion assay, microscopic visualization, and model simulation. Tetracycline sorbed on the soils could be desorbed and become bioavailable to the E. coli cells at matric water potentials of -2.95 to -13.75 kPa. Bright fluorescent rings were formed around the tetracycline-loaded soils on the unsaturated agar surfaces, likely due to radial diffusion of tetracycline desorbed from the soils, tetracycline uptake by the E. coli cells, and its inhibition on E. coli growth, which was supported by the model simulation. The bioavailability of soil-sorbed tetracycline was much higher for the Oshtemo soil, probably due to faster diffusion of tetracycline in coarse-textured soils. Decreased bioavailability of soil-sorbed tetracycline at lower soil water potential likely resulted from reduced tetracycline diffusion in soil pore water at smaller matric potential and/or suppressed tetracycline uptake by E. coli at lower osmotic potential. Therefore, soil-sorbed tetracycline could still exert selective pressure on the exposed bacteria, which was influenced by soil physical processes controlled by soil texture and soil water potential.
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Affiliation(s)
- Zeyou Chen
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University , Nanjing 210095, China
- Department of Plant, Soil and Microbial Sciences, Michigan State University , East Lansing, Michigan 48824, United States
| | - Wei Zhang
- Department of Plant, Soil and Microbial Sciences, Michigan State University , East Lansing, Michigan 48824, United States
| | - Gang Wang
- Department of Water and Soil Sciences, China Agricultural University , Beijing 100193, China
| | - Yingjie Zhang
- Department of Plant, Soil and Microbial Sciences, Michigan State University , East Lansing, Michigan 48824, United States
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University , Nanjing 210095, China
| | - Stephen A Boyd
- Department of Plant, Soil and Microbial Sciences, Michigan State University , East Lansing, Michigan 48824, United States
| | - Brian J Teppen
- Department of Plant, Soil and Microbial Sciences, Michigan State University , East Lansing, Michigan 48824, United States
| | - James M Tiedje
- Department of Plant, Soil and Microbial Sciences, Michigan State University , East Lansing, Michigan 48824, United States
| | - Dongqiang Zhu
- School of Urban and Environmental Sciences, Peking University , Beijing 100871, China
| | - Hui Li
- Department of Plant, Soil and Microbial Sciences, Michigan State University , East Lansing, Michigan 48824, United States
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Nozière B, Gérard V, Baduel C, Ferronato C. Extraction and Characterization of Surfactants from Atmospheric Aerosols. J Vis Exp 2017. [PMID: 28518073 PMCID: PMC5565068 DOI: 10.3791/55622] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Surface-active compounds, or surfactants, present in atmospheric aerosols are expected to play important roles in the formation of liquid water clouds in the Earth's atmosphere, a central process in meteorology, hydrology, and for the climate system. But because specific extraction and characterization of these compounds have been lacking for decades, very little is known on their identity, properties, mode of action and origins, thus preventing the full understanding of cloud formation and its potential links with the Earth's ecosystems. In this paper we present recently developed methods for 1) the targeted extraction of all the surfactants from atmospheric aerosol samples and for the determination of 2) their absolute concentrations in the aerosol phase and 3) their static surface tension curves in water, including their Critical Micelle Concentration (CMC). These methods have been validated with 9 references surfactants, including anionic, cationic and non-ionic ones. Examples of results are presented for surfactants found in fine aerosol particles (diameter <1 μm) collected at a coastal site in Croatia and suggestions for future improvements and other characterizations than those presented are discussed.
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Affiliation(s)
| | | | - Christine Baduel
- CNRS, ENS de Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280
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Kuppusamy S, Thavamani P, Venkateswarlu K, Lee YB, Naidu R, Megharaj M. Remediation approaches for polycyclic aromatic hydrocarbons (PAHs) contaminated soils: Technological constraints, emerging trends and future directions. CHEMOSPHERE 2017; 168:944-968. [PMID: 27823779 DOI: 10.1016/j.chemosphere.2016.10.115] [Citation(s) in RCA: 320] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 10/26/2016] [Accepted: 10/27/2016] [Indexed: 05/22/2023]
Abstract
For more than a decade, the primary focus of environmental experts has been to adopt risk-based management approaches to cleanup PAH polluted sites that pose potentially destructive ecological consequences. This focus had led to the development of several physical, chemical, thermal and biological technologies that are widely implementable. Established remedial options available for treating PAH contaminated soils are incineration, thermal conduction, solvent extraction/soil washing, chemical oxidation, bioaugmentation, biostimulation, phytoremediation, composting/biopiles and bioreactors. Integrating physico-chemical and biological technologies is also widely practiced for better cleanup of PAH contaminated soils. Electrokinetic remediation, vermiremediation and biocatalyst assisted remediation are still at the development stage. Though several treatment methods to remediate PAH polluted soils currently exist, a comprehensive overview of all the available remediation technologies to date is necessary so that the right technology for field-level success is chosen. The objective of this review is to provide a critical overview in this respect, focusing only on the treatment options available for field soils and ignoring the spiked ones. The authors also propose the development of novel multifunctional green and sustainable systems like mixed cell culture system, biosurfactant flushing, transgenic approaches and nanoremediation in order to overcome the existing soil- contaminant- and microbial-associated technological limitations in tackling high molecular weight PAHs. The ultimate objective is to ensure the successful remediation of long-term PAH contaminated soils.
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Affiliation(s)
- Saranya Kuppusamy
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia.
| | - Palanisami Thavamani
- Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Kadiyala Venkateswarlu
- Formerly Department of Microbiology, Sri Krishnadevaraya University, Anantapur, 515055, India
| | - Yong Bok Lee
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Ravi Naidu
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Mallavarapu Megharaj
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
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43
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Vergani L, Mapelli F, Zanardini E, Terzaghi E, Di Guardo A, Morosini C, Raspa G, Borin S. Phyto-rhizoremediation of polychlorinated biphenyl contaminated soils: An outlook on plant-microbe beneficial interactions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 575:1395-1406. [PMID: 27717569 DOI: 10.1016/j.scitotenv.2016.09.218] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 09/28/2016] [Accepted: 09/28/2016] [Indexed: 05/18/2023]
Abstract
Polychlorinated biphenyls (PCBs) are toxic chemicals, recalcitrant to degradation, bioaccumulative and persistent in the environment, causing adverse effects on ecosystems and human health. For this reason, the remediation of PCB-contaminated soils is a primary issue to be addressed. Phytoremediation represents a promising tool for in situ soil remediation, since the available physico-chemical technologies have strong environmental and economic impacts. Plants can extract and metabolize several xenobiotics present in the soil, but their ability to uptake and mineralize PCBs is limited due to the recalcitrance and low bioavailability of these molecules that in turn impedes an efficient remediation of PCB-contaminated soils. Besides plant degradation ability, rhizoremediation takes into account the capability of soil microbes to uptake, attack and degrade pollutants, so it can be seen as the most suitable strategy to clean-up PCB-contaminated soils. Microbes are in fact the key players of PCB degradation, performed under both aerobic and anaerobic conditions. In the rhizosphere, microbes and plants positively interact. Microorganisms can promote plant growth under stressed conditions typical of polluted soils. Moreover, in this specific niche, root exudates play a pivotal role by promoting the biphenyl catabolic pathway, responsible for microbial oxidative PCB metabolism, and by improving the overall PCB degradation performance. Besides rhizospheric microbial community, also the endophytic bacteria are involved in pollutant degradation and represent a reservoir of microbial resources to be exploited for bioremediation purposes. Here, focusing on plant-microbe beneficial interactions, we propose a review of the available results on PCB removal from soil obtained combining different plant and microbial species, mainly under simplified conditions like greenhouse experiments. Furthermore, we discuss the potentiality of "omics" approaches to identify PCB-degrading microbes, an aspect of paramount importance to design rhizoremediation strategies working efficiently under different environmental conditions, pointing out the urgency to expand research investigations to field scale.
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Affiliation(s)
- Lorenzo Vergani
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy
| | - Francesca Mapelli
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy
| | - Elisabetta Zanardini
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 9, Como, Italy
| | - Elisa Terzaghi
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 9, Como, Italy
| | - Antonio Di Guardo
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 9, Como, Italy
| | - Cristiana Morosini
- Department of Science and High Technology (DiSAT), University of Insubria, Via G.B. Vico 46, Varese, Italy
| | - Giuseppe Raspa
- Department of Chemical Engineering Materials Environment (DICMA), Rome "La Sapienza" University, Via Eudossiana 18, Rome, Italy
| | - Sara Borin
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy.
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Paulino BN, Pessôa MG, Mano MCR, Molina G, Neri-Numa IA, Pastore GM. Current status in biotechnological production and applications of glycolipid biosurfactants. Appl Microbiol Biotechnol 2016; 100:10265-10293. [PMID: 27844141 DOI: 10.1007/s00253-016-7980-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 10/20/2016] [Accepted: 11/01/2016] [Indexed: 01/20/2023]
Abstract
Biosurfactants are natural compounds with surface activity and emulsifying properties produced by several types of microorganisms and have been considered an interesting alternative to synthetic surfactants. Glycolipids are promising biosurfactants, due to low toxicity, biodegradability, and chemical stability in different conditions and also because they have many biological activities, allowing wide applications in different fields. In this review, we addressed general information about families of glycolipids, rhamnolipids, sophorolipids, mannosylerythritol lipids, and trehalose lipids, describing their chemical and surface characteristics, recent studies using alternative substrates, and new strategies to improve of production, beyond their specificities. We focus in providing recent developments and trends in biotechnological process and medical and industrial applications.
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Affiliation(s)
- Bruno Nicolau Paulino
- Laboratory of Bioflavors and Bioactive Compounds, Department of Food Science, Faculty of Food Engineering, University of Campinas, Cidade Universitária "Zeferino Vaz" Barão Geraldo - Campinas, São Paulo, CEP 13083-862, Brazil.
| | - Marina Gabriel Pessôa
- Laboratory of Bioflavors and Bioactive Compounds, Department of Food Science, Faculty of Food Engineering, University of Campinas, Cidade Universitária "Zeferino Vaz" Barão Geraldo - Campinas, São Paulo, CEP 13083-862, Brazil
| | - Mario Cezar Rodrigues Mano
- Laboratory of Bioflavors and Bioactive Compounds, Department of Food Science, Faculty of Food Engineering, University of Campinas, Cidade Universitária "Zeferino Vaz" Barão Geraldo - Campinas, São Paulo, CEP 13083-862, Brazil
| | - Gustavo Molina
- Institute of Science and Technology, Food Engineering, UFVJM, Diamantina, Minas Gerais, Brazil
| | - Iramaia Angélica Neri-Numa
- Laboratory of Bioflavors and Bioactive Compounds, Department of Food Science, Faculty of Food Engineering, University of Campinas, Cidade Universitária "Zeferino Vaz" Barão Geraldo - Campinas, São Paulo, CEP 13083-862, Brazil
| | - Glaucia Maria Pastore
- Laboratory of Bioflavors and Bioactive Compounds, Department of Food Science, Faculty of Food Engineering, University of Campinas, Cidade Universitária "Zeferino Vaz" Barão Geraldo - Campinas, São Paulo, CEP 13083-862, Brazil
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45
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Cao Y, Yang B, Song Z, Wang H, He F, Han X. Wheat straw biochar amendments on the removal of polycyclic aromatic hydrocarbons (PAHs) in contaminated soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 130:248-255. [PMID: 27151675 DOI: 10.1016/j.ecoenv.2016.04.033] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 04/25/2016] [Accepted: 04/25/2016] [Indexed: 06/05/2023]
Abstract
Soil amendments of wheat straw biochar (BC), lignocellulosic substrate (LS), BC+LS, and BC+LS+BR (surfactant Brij30) were investigated for the first time in order to remedy polycyclic aromatic hydrocarbons (PAHs)-polluted soil using pilot scale microcosm incubation. We hypothesized that the removal of PAHs could be inhibited due to the adsorption and immobilization of biochar and the inhibition depends on the molecular-weight of PAHs. The removal rates of phenanthrene (PHE) and Benzo[a]pyrene (BaP) ranked as C=BC>LS=LS+BC=LS+BC+BR and C=BC=LS+BC+BR>LS=LS+BC. Wheat straw biochar inhibited the removal of PHE and accelerated BaP removal. The activity of Dehydrogenase (DH) was depressed by the addition of the biochar while the activity of polyphenol oxidase (PPO) was stimulated. Lignocellulose and surfactant are favourable to sustain soil microbiological activity and the removal of PAHs although the diversity of bacterial community was not significantly changed. The findings implied that the components of PAHs are necessary to consider when the amendments are implemented by associated biochar in PAH-polluted soil.
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Affiliation(s)
- Yanan Cao
- School of Resources and Environment, University of Jinan, Jinan 250022, China; Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan 250022, China
| | - Baoshan Yang
- School of Resources and Environment, University of Jinan, Jinan 250022, China; Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan 250022, China
| | - Ziheng Song
- School of Resources and Environment, University of Jinan, Jinan 250022, China; Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan 250022, China
| | - Hui Wang
- School of Resources and Environment, University of Jinan, Jinan 250022, China; Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan 250022, China.
| | - Fei He
- School of Resources and Environment, University of Jinan, Jinan 250022, China; Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan 250022, China
| | - Xuemei Han
- School of Resources and Environment, University of Jinan, Jinan 250022, China; Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan 250022, China
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46
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Gérard V, Nozière B, Baduel C, Fine L, Frossard AA, Cohen RC. Anionic, Cationic, and Nonionic Surfactants in Atmospheric Aerosols from the Baltic Coast at Askö, Sweden: Implications for Cloud Droplet Activation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:2974-82. [PMID: 26895279 DOI: 10.1021/acs.est.5b05809] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Recent analyses of atmospheric aerosols from different regions have demonstrated the ubiquitous presence of strong surfactants and evidenced surface tension values, σ, below 40 mN m(-1), suspected to enhance the cloud-forming potential of these aerosols. In this work, this approach was further improved and combined with absolute concentration measurements of aerosol surfactants by colorimetric titration. This analysis was applied to PM2.5 aerosols collected at the Baltic station of Askö, Sweden, from July to October 2010. Strong surfactants were found in all the sampled aerosols, with σ = (32-40) ± 1 mN m(-1) and concentrations of at least 27 ± 6 mM or 104 ± 21 pmol m(-3). The absolute surface tension curves and critical micelle concentrations (CMC) determined for these aerosol surfactants show that (1) surfactants are concentrated enough in atmospheric particles to strongly depress the surface tension until activation, and (2) the surface tension does not follow the Szyszkowski equation during activation but is nearly constant and minimal, which provides new insights on cloud droplet activation. In addition, both the CMCs determined and the correlation (R(2) ∼ 0.7) between aerosol surfactant concentrations and chlorophyll-a seawater concentrations suggest a marine and biological origin for these compounds.
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Affiliation(s)
- Violaine Gérard
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), CNRS, and Université Lyon 1 , Villeurbanne, 69626 France
| | - Barbara Nozière
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), CNRS, and Université Lyon 1 , Villeurbanne, 69626 France
| | - Christine Baduel
- Department of Applied Environmental Science (ITM), Stockholm University , Stockholm 106 91, Sweden
| | - Ludovic Fine
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), CNRS, and Université Lyon 1 , Villeurbanne, 69626 France
| | - Amanda A Frossard
- Department of Chemistry, University of California , Berkeley 94720, United States
| | - Ronald C Cohen
- Department of Chemistry, University of California , Berkeley 94720, United States
- Department of Earth and Planetary Science, University of California , Berkeley 94720, United States
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47
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Kim M, Or D. Individual-Based Model of Microbial Life on Hydrated Rough Soil Surfaces. PLoS One 2016; 11:e0147394. [PMID: 26807803 PMCID: PMC4726620 DOI: 10.1371/journal.pone.0147394] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 01/04/2016] [Indexed: 12/02/2022] Open
Abstract
Microbial life in soil is perceived as one of the most interesting ecological systems, with microbial communities exhibiting remarkable adaptability to vast dynamic environmental conditions. At the same time, it is a notoriously challenging system to understand due to its complexity including physical, chemical, and biological factors in synchrony. This study presents a spatially-resolved model of microbial dynamics on idealised rough soil surfaces represented as patches with different (roughness) properties that preserve the salient hydration physics of real surfaces. Cell level microbial interactions are considered within an individual-based formulation including dispersion and various forms of trophic dependencies (competition, mutualism). The model provides new insights into mechanisms affecting microbial community dynamics and gives rise to spontaneous formation of microbial community spatial patterns. The framework is capable of representing many interacting species and provides diversity metrics reflecting surface conditions and their evolution over time. A key feature of the model is its spatial scalability that permits representation of microbial processes from cell-level (micro-metric scales) to soil representative volumes at sub-metre scales. Several illustrative examples of microbial trophic interactions and population dynamics highlight the potential of the proposed modelling framework to quantitatively study soil microbial processes. The model is highly applicable in a wide range spanning from quantifying spatial organisation of multiple species under various hydration conditions to predicting microbial diversity residing in different soils.
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Affiliation(s)
- Minsu Kim
- Soil and Terrestrial Environmental Physics (STEP), Department of Environmental Systems Sciences (USYS), ETH Zürich, 8092 Zürich, Switzerland
| | - Dani Or
- Soil and Terrestrial Environmental Physics (STEP), Department of Environmental Systems Sciences (USYS), ETH Zürich, 8092 Zürich, Switzerland
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48
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Ramalingam V, Varunkumar K, Ravikumar V, Rajaram R. Development of glycolipid biosurfactant for inducing apoptosis in HeLa cells. RSC Adv 2016. [DOI: 10.1039/c6ra00805d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel glycolipid biosurfactant produced fromStaphylococcus aureuswas used to induce apoptosis in HeLa cells.
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Affiliation(s)
- V. Ramalingam
- DNA Barcoding and Marine Genomics Lab
- Department of Marine Science
- Bharathidasan University
- Tiruchirappalli – 620 024
- India
| | - K. Varunkumar
- Cancer Biology Lab
- Department of Biochemistry
- Bharathidasan University
- Tiruchirappalli – 620 024
- India
| | - V. Ravikumar
- Cancer Biology Lab
- Department of Biochemistry
- Bharathidasan University
- Tiruchirappalli – 620 024
- India
| | - R. Rajaram
- DNA Barcoding and Marine Genomics Lab
- Department of Marine Science
- Bharathidasan University
- Tiruchirappalli – 620 024
- India
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49
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Agarwal A, Liu Y. Remediation technologies for oil-contaminated sediments. MARINE POLLUTION BULLETIN 2015; 101:483-490. [PMID: 26414316 DOI: 10.1016/j.marpolbul.2015.09.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/21/2015] [Accepted: 09/03/2015] [Indexed: 06/05/2023]
Abstract
Oil-contaminated sediments pose serious environmental hazards for both aquatic and terrestrial ecosystems. Innovative and environmentally compatible technologies are urgently required to remove oil-contaminated sediments. In this paper, various physical, chemical and biological technologies are investigated for the remediation of oil-contaminated sediments such as flotation and washing, coal agglomeration, thermal desorption, ultrasonic desorption, bioremediation, chemical oxidation and extraction using ionic liquids. The basic principles of these technologies as well as their advantages and disadvantages for practical application have been discussed. A combination of two or more technologies is expected to provide an innovative solution that is economical, eco-friendly and adaptable.
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Affiliation(s)
- Ashutosh Agarwal
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Yu Liu
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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50
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Chaprão MJ, Ferreira IN, Correa PF, Rufino RD, Luna JM, Silva EJ, Sarubbo LA. Application of bacterial and yeast biosurfactants for enhanced removal and biodegradation of motor oil from contaminated sand. ELECTRON J BIOTECHN 2015. [DOI: 10.1016/j.ejbt.2015.09.005] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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