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Trilokesh C, Harish BS, Uppuluri KB. The antibiofilm potential of a heteropolysaccharide produced and characterized from the isolated marine bacterium Glutamicibacter nicotianae BPM30. Prep Biochem Biotechnol 2024; 54:175-183. [PMID: 37184434 DOI: 10.1080/10826068.2023.2209886] [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] [Indexed: 05/16/2023]
Abstract
Biofilms are the significant causes of 80% of chronic infections in the oral cavity, urinary tract, biliary tube, lungs, gastrointestinal tract, and so on to the general public. Treatment of pathogenic biofilm using bacterial exopolysaccharides (EPS) is an effective and promising strategy. In the present work, a marine bacterium was isolated, studied for exopolysaccharide production, and tested for its antibiofilm activity. Approximately 1.31 ± 0.07 g/L of a purified extracellular polysaccharide was produced and characterized from the isolated marine bacterium Glutamicibacter nicotianae BPM30. The hydrolyzed EPS contains multiple monosaccharides such as rhamnose, fructose, glucose, and galactose. The EPS demonstrated potential antibiofilm activity on four tested pathogens in a concentration-dependent mode. The antibiofilm activity of the purified EPS was studied by crystal violet assay and fluorescence staining method. Comparative inhibition results obtained for the tested strains are 93.25% ± 5.25 and 88.56% ± 2.25 for K. pneumoniae; 92.65% ± 7.6 and 98.33% ± 0.85 for P. aeruginosa; 90.36% ± 6.3 and 52.08% ± 7.74 for S. typhi; 84.62% ± 5.6 and 77.90% ± 5.90 for S. dysenteriae. The results of the present work demonstrated the antibiofilm potential of EPS, which could be helpful in the invention of novel curative approaches in battling bacterial biofilm-related medical complications.
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Affiliation(s)
- C Trilokesh
- Bioprospecting Laboratory, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
| | - B S Harish
- Bioprospecting Laboratory, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
| | - Kiran Babu Uppuluri
- Bioprospecting Laboratory, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
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Sustainable Exopolysaccharide Production by Rhizobium viscosum CECT908 Using Corn Steep Liquor and Sugarcane Molasses as Sole Substrates. Polymers (Basel) 2022; 15:polym15010020. [PMID: 36616373 PMCID: PMC9823382 DOI: 10.3390/polym15010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Abstract
Microbial exopolysaccharides (EPS) are promising alternatives to synthetic polymers in a variety of applications. Their high production costs, however, limit their use despite their outstanding properties. The use of low-cost substrates such as agro-industrial wastes in their production, can help to boost their market competitiveness. In this work, an alternative low-cost culture medium (CSLM) was developed for EPS production by Rhizobium viscosum CECT908, containing sugarcane molasses (60 g/L) and corn steep liquor (10 mL/L) as sole ingredients. This medium allowed the production of 6.1 ± 0.2 g EPS/L, twice the amount produced in the standard medium (Syn), whose main ingredients were glucose and yeast extract. This is the first report of EPS production by R. viscosum using agro-industrial residues as sole substrates. EPSCSLM and EPSSyn exhibited a similar carbohydrate composition, mainly 4-linked galactose, glucose and mannuronic acid. Although both EPS showed a good fit to the Herschel-Bulkley model, EPSCSLM displayed a higher yield stress and flow consistency index when compared with EPSSyn, due to its higher apparent viscosity. EPSCSLM demonstrated its potential use in Microbial Enhanced Oil Recovery by enabling the recovery of nearly 50% of the trapped oil in sand-pack column experiments using a heavy crude oil.
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Hereher F, ElFallal A, Abou-Dobara M, Toson E, Abdelaziz MM. Cultural optimization of a new exopolysaccharide producer “Micrococcus roseus”. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2018. [DOI: 10.1016/j.bjbas.2018.07.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Couto MR, Gudiña EJ, Ferreira D, Teixeira JA, Rodrigues LR. The biopolymer produced by Rhizobium viscosum CECT 908 is a promising agent for application in microbial enhanced oil recovery. N Biotechnol 2018; 49:144-150. [PMID: 30445186 DOI: 10.1016/j.nbt.2018.11.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 11/06/2018] [Accepted: 11/09/2018] [Indexed: 11/24/2022]
Abstract
Polymer flooding is one of the most promising techniques used to increase the productivity of mature oil reservoirs. Polymers reduce the mobility ratio of the injected water relative to the crude oil, improving the displacement of the entrapped oil and consequently, increasing oil recovery. Biopolymers such as xanthan gum have emerged as environmentally friendly alternatives to the chemical polymers commonly employed by the oil industry. However, in order to seek more efficient biomolecules, alternative biopolymers must be studied. Here, the applicability of a biopolymer produced by Rhizobium viscosum CECT 908 in Microbial Enhanced Oil Recovery (MEOR) was evaluated. This biopolymer exhibited better rheological properties (including higher viscosity) when compared with xanthan gum. Its stability at high shear rates (up to 300 s-1), temperatures (up to 80 °C) and salinities (up to 200 g/L of NaCl) was also demonstrated. The biopolymer exhibited better performance than xanthan gum in oil recovery assays performed with a heavy crude oil, achieving 25.7 ± 0.5% of additional recovery. Thus the R. viscosum CECT 908 biopolymer is a promising candidate for application in MEOR.
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Affiliation(s)
- Márcia R Couto
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Eduardo J Gudiña
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
| | - Débora Ferreira
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - José A Teixeira
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Lígia R Rodrigues
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
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Quintelas C, da Silva VB, Silva B, Figueiredo H, Tavares T. Optimization of production of extracellular polymeric substances by Arthrobacter viscosus and their interaction with a 13X zeolite for the biosorption of Cr(VI). ENVIRONMENTAL TECHNOLOGY 2011; 32:1541-1549. [PMID: 22329145 DOI: 10.1080/09593330.2010.543930] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this work we aimed to optimize the production of extracellular polymeric substances (EPS) by an Arthrobacter viscosus biofilm supported on 13X zeolite to be used in the biosorption of Cr(VI). The optimization parameters were agitation rate, work volume, pH and glucose concentration. Following the optimization of EPS production, the biofilm was used in the biosorption of hexavalent Cr from liquid solutions. Differences between the use of dead or active biomass and between the performance of zeolite in powder or in pellet form were also studied. The optimized EPS production allowed values of metal uptake between 2.72 mg/g(biosorbent) and 7.88 mg/g(biosorbent) for initial Cr(VI) concentrations of 20-60 mg/L. For an initial concentration of 20 mg/L, the optimal conditions of EPS production allowed an increase of 10% on the removal percentage of total Cr, and the use of zeolite as a powder rather than the pelleted form produced an increase of 46.5% in the removal percentage. For the initial concentration of 60 mg/L, the use of active biomass compared to dried biomass allowed a reduction of the time required for the total removal of Cr(VI) from 20 to 13 days.
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Affiliation(s)
- Cristina Quintelas
- IBB-Lnstitute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, Portugal.
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Pazos M, Branco M, Neves IC, Sanromán MA, Tavares T. Removal of Cr(VI) from Aqueous Solutions by a Bacterial Biofilm Supported on Zeolite: Optimisation of the Operational Conditions and Scale-Up of the Bioreactor. Chem Eng Technol 2010. [DOI: 10.1002/ceat.201000203] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Aguilera M, Quesada MT, Del Aguila VG, Morillo JA, Rivadeneyra MA, Ramos-Cormenzana A, Monteoliva-Sánchez M. Characterisation of Paenibacillus jamilae strains that produce exopolysaccharide during growth on and detoxification of olive mill wastewaters. BIORESOURCE TECHNOLOGY 2008; 99:5640-5644. [PMID: 18054485 DOI: 10.1016/j.biortech.2007.10.032] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2006] [Revised: 10/17/2007] [Accepted: 10/18/2007] [Indexed: 05/25/2023]
Abstract
A total of 10 bacterial strains were isolated from a compost of corn treated with olive mill wastewaters (OMW) and selected by their capacity to synthesize exopolysaccharides (EPS). Morphological, physiological, biochemical and nutritional tests were used for a phenotypic study. A numerical analysis showed that all strains were 90% similar to each other. A DNA-DNA hybridization assay confirmed that all the strains belonged to Paenibacillus jamilae species. All the characterized strains were able to produce EPS growing on OMW batch cultures. The strain which was able to produce the highest EPS yield was chosen to perform an assay for testing its putative detoxifying activity, and it showed to reduce more than half the toxic capacity of the OMW. The results presented in this study, indicated the possible perspectives for using these bacterial strains to produce EPS and contribute to the bioremediation of the waste waters that are produced in the olive oil elaboration process.
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Affiliation(s)
- Margarita Aguilera
- Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus Universitario de Cartuja s/n, 18071 Granada, Spain
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Meisen S, Wingender J, Telgheder U. Analysis of microbial extracellular polysaccharides in biofilms by HPLC. Part I: Development of the analytical method using two complementary stationary phases. Anal Bioanal Chem 2008; 391:993-1002. [PMID: 18418583 DOI: 10.1007/s00216-008-2068-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2007] [Revised: 03/05/2008] [Accepted: 03/10/2008] [Indexed: 02/03/2023]
Abstract
The investigation of microbial extracellular polymeric substances (EPS) is helpful for the implementation of analytical methods which are suitable for biofilm analysis in order to understand the architecture and function of biofilms. A procedure for the qualitative and quantitative determination of various monosaccharides, oligosaccharides and uronic acids as important components of the carbohydrate fraction of microbial EPS by high-performance liquid chromatography (HPLC) and refractive index (RI)/UV detection is presented. Porous graphitic carbon and lead-form cation-exchanger have been examined as stationary phases. Therefore, two complementary HPLC methods are presented. To simulate the conditions of hydrolysis, the influences of various salts, acids and alkalis as matrix components have been investigated. Furthermore, the dependencies on the pH value and temperature of the mobile phase have been thoroughly studied. The results showed that the lead-form cation-exchanger is suitable for the separation of the neutral monosaccharides. However, for direct analysis after acidic hydrolysis with H(2)SO(4), HCl or trifluoroacetic acid, an additional purification step, e.g., precipitation or lyophilization, is necessary when the cation-exchanger is used. With the exception of hydrolysis with HCl, the porous graphitic carbon stationary phase can be used without any further purification step and is appropriate for the separation of uronic acids and their gamma-lactones. Additionally, the separation of a single monosaccharide and its derivatives is possible. Analytical parameters including the sensitivities, repeatabilities, limits of detection and limits of quantification of both HPLC methods using the RI detector are presented. The optimized method has been applied for the characterization of alginates and is also suitable for other extracellular polysaccharides in biofilms.
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Affiliation(s)
- Stefan Meisen
- Instrumental Analytical Chemistry, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany
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Janecka J, Jenkins MB, Brackett NS, Lion LW, Ghiorse WC. Characterization of a Sinorhizobium isolate and its extracellular polymer implicated in pollutant transport in soil. Appl Environ Microbiol 2002; 68:423-6. [PMID: 11772656 PMCID: PMC126573 DOI: 10.1128/aem.68.1.423-426.2002] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2001] [Accepted: 10/22/2001] [Indexed: 11/20/2022] Open
Abstract
A bacterium isolated from soil (designated 9702-M4) synthesizes an extracellular polymer that facilitates the transport of such hydrophobic pollutants as polynuclear aromatic hydrocarbons, as well as the toxic metals lead and cadmium in soil. Biolog analysis, growth rate determinations, and percent G+C content identify 9702-M4 as a strain of Sinorhizobium meliloti. Sequence analysis of a 16S rDNA fragment gives 9702-M4 a phylogenetic designation most closely related to Sinorhizobium fredii. The extracellular polymer of isolate 9702-M4 is composed of both an extracellular polysaccharide (EPS) and a rough lipopolysaccharide. The EPS component is composed mainly of 4-glucose linkages with monomers of galactose, mannose, and glucuronic acid and has pyruval and acetyl constituents. The lipid fraction and the negative charge associated with carbonyl groups of the exopolymer are thought to account for the binding of polynuclear aromatic hydrocarbons and cationic metals.
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Affiliation(s)
- J Janecka
- Department of Microbiology, Cornell University, Ithaca, New York 14853, USA
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Fialho, Martins, Donval, Leitao, Ridout, Jay, Morris, Sa-Correia. Structures and properties of gellan polymers produced by sphingomonas paucimobilis ATCC 31461 from lactose compared with those produced from glucose and from cheese whey. Appl Environ Microbiol 1999; 65:2485-91. [PMID: 10347031 PMCID: PMC91366 DOI: 10.1128/aem.65.6.2485-2491.1999] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/1998] [Accepted: 03/25/1999] [Indexed: 11/20/2022] Open
Abstract
The dairy industry produces large quantities of whey as a by-product of cheese production and is increasingly looking for new ways to utilize this waste product. Gellan gum is reliably produced by Sphingomonas paucimobilis in growth media containing lactose, a significant component of cheese whey, as a carbon source. We studied and compared polysaccharide biosynthesis by S. paucimobilis ATCC 31461 in media containing glucose, lactose (5 to 30 g/liter), and sweet cheese whey. We found that altering the growth medium can markedly affect the polysaccharide yield, acyl substitution level, polymer rheological properties, and susceptibility to degradation. Depression of gellan production from lactose compared with gellan production from glucose (approximately 30%) did not appear to occur at the level of synthesis of sugar nucleotides, which are the donors of monomers used for biosynthesis of the repetitive tetrasaccharide unit of gellan. The lactose-derived biopolymer had the highest total acyl content; the glucose- and whey-derived gellans had similar total acyl contents but differed markedly in their acetate and glycerate levels. Rheological studies revealed how the functionality of a gellan polysaccharide is affected by changes in the acyl substitution.
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Affiliation(s)
- Fialho
- Centro de Engenharia Biologica e Quimica, Instituto Superior Tecnico, 1049-001 Lisbon, Portugal
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Cui W, Winter W, Tanenbaum S, Nakas J. Purification and characterization of an intracellular carboxylesterase from Arthrobacter viscosus NRRL B-1973. Enzyme Microb Technol 1999. [DOI: 10.1016/s0141-0229(98)00107-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Effect of growth conditions on the rheological properties and chemical composition ofVolcaniella eurihalina exopolysaccharide. Appl Biochem Biotechnol 1996. [DOI: 10.1007/bf02787859] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Meade MJ, Tanenbaum SW, Nakas JP. Production and rheological properties of a succinoglycan from Pseudomonas sp. 31260 grown on wood hydrolysates. Can J Microbiol 1995; 41:1147-52. [PMID: 8542556 DOI: 10.1139/m95-160] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Pseudomonas sp. ATCC 31260 produced substantial amounts of anionic extracellular polysaccharide (EPS) from a mineral acid hydrolysate of wood, prepared using the "Tennessee Valley Authority" process. Partially purified EPS production approached 16.5 g/L (as hexadecyltrimethylammonium bromide precipitate) when the pH of the hydrolysate was initially adjusted to 7.5 and amended with 0.05% each of peptone and yeast extract. This EPS, now characterized as a succinoglycan, is composed of glucose, galactose, succinate, pyruvate, and acetate. Solutions of this EPS are pseudoplastic, and under specified conditions, are rheologically comparable with commercially available xanthan.
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Affiliation(s)
- M J Meade
- Department of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse 13210, USA
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Meade MJ, Tanenbaum SW, Nakas JP. Optimization of Novel Extracellular Polysaccharide Production by an
Enterobacter
sp, on Wood Hydrolysates. Appl Environ Microbiol 1994; 60:1367-9. [PMID: 16349242 PMCID: PMC201484 DOI: 10.1128/aem.60.4.1367-1369.1994] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An environmental isolate identified as
Enterobacter cloacae
has been found to produce a highly viscous, anionic extracellular polysaccharide (EPS) from a weak mineral acid hydrolysate of hardwood. Production of this EPS has been optimized on the hydrolysate (initial pH, 6.3; NH
4
Cl amendment, 0.1%) so that crude yields approaching 9.83 g/liter were obtained. Although this EPS is polydisperse, its molecular mass as determined by gel exclusion chromatography centers at approximately 1,700 kDa. Solutions of this EPS have been examined rheologically under a variety of conditions and compare favorably with both xanthan and alginate.
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Affiliation(s)
- M J Meade
- Department of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse, New York 13210
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Highly viscous polysaccharide produced by an Enterobacter isolate on a hemicellulose hydrolysate. Biotechnol Lett 1993. [DOI: 10.1007/bf00128282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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