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Wittgens A, Rosenau F. Heterologous Rhamnolipid Biosynthesis: Advantages, Challenges, and the Opportunity to Produce Tailor-Made Rhamnolipids. Front Bioeng Biotechnol 2020; 8:594010. [PMID: 33195161 PMCID: PMC7642724 DOI: 10.3389/fbioe.2020.594010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 10/07/2020] [Indexed: 12/18/2022] Open
Abstract
The first heterologous expression of genes responsible for the production of rhamnolipids was already implemented in the mid-1990s during the functional identification of the rhlAB operon. This was the starting shot for multiple approaches to establish the rhamnolipid biosynthesis in different host organisms. Since most of the native rhamnolipid producing organisms are human or plant pathogens, the intention for these ventures was the establishment of non-pathogenic organisms as heterologous host for the production of rhamnolipids. The pathogenicity of producing organisms is one of the bottlenecks for applications of rhamnolipids in many industrial products especially foods and cosmetics. The further advantage of heterologous rhamnolipid production is the circumvention of the complex regulatory network, which regulates the rhamnolipid biosynthesis in wild type production strains. Furthermore, a suitable host with an optimal genetic background to provide sufficient amounts of educts allows the production of tailor-made rhamnolipids each with its specific physico-chemical properties depending on the contained numbers of rhamnose sugar residues and the numbers, chain length and saturation degree of 3-hydroxyfatty acids. The heterologous expression of rhl genes can also enable the utilization of unusual carbon sources for the production of rhamnolipids depending on the host organism.
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Affiliation(s)
- Andreas Wittgens
- Institute of Pharmaceutical Biotechnology, Ulm University, Ulm, Germany.,Ulm Center for Peptide Pharmaceuticals (U-PEP), Ulm University, Ulm, Germany
| | - Frank Rosenau
- Institute of Pharmaceutical Biotechnology, Ulm University, Ulm, Germany.,Ulm Center for Peptide Pharmaceuticals (U-PEP), Ulm University, Ulm, Germany.,Department Synthesis of Macromolecules, Max-Planck-Institute for Polymer Research Mainz, Mainz, Germany
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Optimization of biosurfactant production from chemically mutated strain of Bacillus subtilis using waste automobile oil as low-cost substrate. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s42398-020-00127-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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53
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Eslami P, Hajfarajollah H, Bazsefidpar S. Recent advancements in the production of rhamnolipid biosurfactants by Pseudomonas aeruginosa. RSC Adv 2020; 10:34014-34032. [PMID: 35519061 PMCID: PMC9056861 DOI: 10.1039/d0ra04953k] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/24/2020] [Indexed: 01/10/2023] Open
Abstract
Rhamnolipid (RL) biosurfactant which is produced by Pseudomonas species is one of the most effective surface-active agents investigated in the literature. Over the years, many efforts have been made and an array of techniques has been developed for the isolation of RL produced strains as well as RL homolog characterization. Reports show that RL productivity by the best-known producer, Pseudomonas aeruginosa, is very diverse, from less than 1 gr/l to more than 200 g L-1. There are some major parameters that can affect RL productivity. These are culture conditions, medium composition, the mode of operation (batch, fed-batch and continuous), bioengineering/gene manipulation and finally extraction methods. The present paper seeks to provide a comprehensive overview on the production of rhamnolipid biosurfactant by different species of Pseudomonas bacteria. In addition, we have extensively reviewed their potential for possible future applications.
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Affiliation(s)
- Parisa Eslami
- Amirkabir University of Technology, Chemical Engineering Department Iran
| | - Hamidreza Hajfarajollah
- Amirkabir University of Technology, Chemical Engineering Department Iran
- Chemistry and Chemical Engineering Research Center of Iran, Chemical Engineering Department Iran +98 2122734406
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Impact of flocculant addition in oil recovery from multiphasic fermentations. FOOD AND BIOPRODUCTS PROCESSING 2020. [DOI: 10.1016/j.fbp.2020.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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De Gregorio PR, Parolin C, Abruzzo A, Luppi B, Protti M, Mercolini L, Silva JA, Giordani B, Marangoni A, Nader-Macías MEF, Vitali B. Biosurfactant from vaginal Lactobacillus crispatus BC1 as a promising agent to interfere with Candida adhesion. Microb Cell Fact 2020; 19:133. [PMID: 32552788 PMCID: PMC7302142 DOI: 10.1186/s12934-020-01390-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 06/11/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Lactobacillus spp. dominating the vaginal microbiota of healthy women contribute to the prevention of urogenital and sexually transmitted infections. Their protective role in the vagina can be mediated by Lactobacillus cells themselves, metabolites or bacterial components, able to interfere with pathogen adhesion and infectivity. Vulvovaginal candidiasis (VVC) is a common genital infection, caused by the overgrowth of opportunistic Candida spp. including C. albicans, C. glabrata, C. krusei and C. tropicalis. Azole antifungal drugs are not always efficient in resolving VVC and preventing recurrent infections, thus alternative anti-Candida agents based on vaginal probiotics have gained more importance. The present work aims to chemically characterize the biosurfactant (BS) isolated from a vaginal Lactobacillus crispatus strain, L. crispatus BC1, and to investigate its safety and antiadhesive/antimicrobial activity against Candida spp., employing in vitro and in vivo assays. RESULTS BS isolated from vaginal L. crispatus BC1 was characterised as non-homogeneous lipopeptide molecules with a critical micellar concentration value of 2 mg/mL, and good emulsification and mucoadhesive properties. At 1.25 mg/mL, the BS was not cytotoxic and reduced Candida strains' ability to adhere to human cervical epithelial cells, mainly by exclusion mechanism. Moreover, intravaginal (i.va.) inoculation of BS in a murine experimental model was safe and did not perturb vaginal cytology, histology and cultivable vaginal microbiota. In the case of i.va. challenge of mice with C. albicans, BS was able to reduce leukocyte influx. CONCLUSIONS These results indicate that BS from vaginal L. crispatus BC1 is able to interfere with Candida adhesion in vitro and in vivo, and suggest its potential as a preventive agent to reduce mucosal damage occasioned by Candida during VVC.
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Affiliation(s)
- Priscilla Romina De Gregorio
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco, 145, 4000, San Miguel de Tucumán, Tucumán, Argentina.
| | - Carola Parolin
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127, Bologna, Italy.
| | - Angela Abruzzo
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127, Bologna, Italy
| | - Barbara Luppi
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127, Bologna, Italy
| | - Michele Protti
- Department of Pharmacy and Biotechnologies, University of Bologna, Via Belmeloro 6, 40126, Bologna, Italy
| | - Laura Mercolini
- Department of Pharmacy and Biotechnologies, University of Bologna, Via Belmeloro 6, 40126, Bologna, Italy
| | - Jessica Alejandra Silva
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco, 145, 4000, San Miguel de Tucumán, Tucumán, Argentina
| | - Barbara Giordani
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127, Bologna, Italy
| | - Antonella Marangoni
- Microbiology, DIMES, University of Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | | | - Beatrice Vitali
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127, Bologna, Italy
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Nguyen BVG, Nagakubo T, Toyofuku M, Nomura N, Utada AS. Synergy between Sophorolipid Biosurfactant and SDS Increases the Efficiency of P. aeruginosa Biofilm Disruption. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6411-6420. [PMID: 32479089 DOI: 10.1021/acs.langmuir.0c00643] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biofilms are communities of bacteria encased in self-secreted extracellular polymeric substances (EPS) that adhere stubbornly to submerged surfaces. Once established, these communities can cause serious chronic illnesses in medical settings, while they can promote corrosion and biofouling in industrial settings. Due to the difficulty of their removal, strongly oxidizing chemicals and detergents can be used to degrade and remove biofilms by killing the cells and degrading the matrix; however, the choice of compounds is limited in delicate environments due to the potential damage they may cause. In the case of detergents, most are synthesized from nonrenewable petrochemicals that have a degree of aquatic toxicity. There is a growing need to identify and characterize alternatives to synthetic surfactants. Biosurfactants, which are surfactants produced by microorganisms, are a promising alternative since they can be synthesized from renewable resources, have low environmental toxicity, and have been shown to have higher degrees of specificity in the mechanism of action. Sophorolipids are a class of glycolipid surfactants produced by yeast that have demonstrated great promise due to large yields from renewable feedstocks and for antimicrobial properties; however, the effect of the application of sophorolipids to Gram-negative bacterial biofilms has not been well studied. We investigate the antibiofilm properties of sophorolipids by demonstrating its ability to cause the catastrophic disruption of Pseudomonas aeruginosa PAO1 biofilms in microfluidic channels. We show that while sophorolipids inflict little damage to the bacteria, they weaken the EPS biofilm matrix, leading to surface-detachment and breakup of the biofilm. Furthermore, we find that sophorolipids act cooperatively with the widely used surfactant, sodium dodecyl sulfate. When combined, concentrations ∼100-fold lower than the minimum effective concentration, when used independently, recover potency. Biosurfactants are typically expensive to produce, thus our work demonstrates a means to improve efficacy while simultaneously reducing both cost and the amount of environmentally harmful substances used.
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Smith ML, Gandolfi S, Coshall PM, Rahman PKSM. Biosurfactants: A Covid-19 Perspective. Front Microbiol 2020; 11:1341. [PMID: 32582137 PMCID: PMC7295905 DOI: 10.3389/fmicb.2020.01341] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 05/26/2020] [Indexed: 01/08/2023] Open
Abstract
The recent outbreak in severe acute respiratory syndrome – coronavirus-2 (SARS-CoV-2) has demonstrated the complete inability of nations across the world to cope with the pressures of a global pandemic, especially one in which the only current feasible treatments are those which deal with the symptoms alone and not the viral cause. As the death toll rises, scientists begin to fall toward new avenues of research, with novelty showing itself to be an incredible and so far, underrated resource. In this case, the use of biosurfactants in dealing with this pandemic justifies extensive study with their potential applications being in the prevention of viral spread; dealing with the symptoms that develop after the incubation period; directly targeting viral infected cells and preventing the spread of the virus throughout the host, all in addition to also acting as potential drug delivery systems and cleaning agents. This extensive avenue of biosurfactants owes to the simplicity in their amphiphilic structure which permits them to interact directly with the lipid membrane of the coronavirus, in a way which wouldn't be of significant threat to the host. Although it could possibly interact and affect the virus, it could also affect human internal organs/cells by interacting with lipid membrane, if (biosurfactant is) ingested, and it still needs further studies in human models. The structure of the coronavirus, in this case SARS-CoV-2, is detrimentally dependent on the integrity of its lipid membrane which encloses its vital proteins and RNA. Biosurfactants possess the innate ability to threaten this membrane, a result of their own hydrophobic domains across their amphiphilic structure. With biosurfactants additionally being both natural and sustainable, while also possessing a remarkably low cytotoxicity, it is of no doubt that they are going to be of increasing significance in dealing with the current pandemic.
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Affiliation(s)
- Matthew L Smith
- Centre for Enzyme Innovation, School of Biological Science, Institute of Biological and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Stefano Gandolfi
- Centre for Enzyme Innovation, School of Biological Science, Institute of Biological and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Philippa M Coshall
- Centre for Enzyme Innovation, School of Biological Science, Institute of Biological and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Pattanathu K S M Rahman
- Centre for Enzyme Innovation, School of Biological Science, Institute of Biological and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom.,TeeGene Biotech, Wilton Centre, Redcar and Cleveland, Redcar, United Kingdom
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Bhaumik M, Dhanarajan G, Chopra J, Kumar R, Hazra C, Sen R. Production, partial purification and characterization of a proteoglycan bioemulsifier from an oleaginous yeast. Bioprocess Biosyst Eng 2020; 43:1747-1759. [DOI: 10.1007/s00449-020-02361-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 04/22/2020] [Indexed: 11/28/2022]
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Improved biosurfactant production from Aspergillus niger through chemical mutagenesis: characterization and RSM optimization. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2783-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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61
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Biosurfactants: Eco-Friendly and Innovative Biocides against Biocorrosion. Int J Mol Sci 2020; 21:ijms21062152. [PMID: 32245097 PMCID: PMC7139319 DOI: 10.3390/ijms21062152] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 12/13/2022] Open
Abstract
Corrosion influenced by microbes, commonly known as microbiologically induced corrosion (MIC), is associated with biofilm, which has been one of the problems in the industry. The damages of industrial equipment or infrastructures due to corrosion lead to large economic and environmental problems. Synthetic chemical biocides are now commonly used to prevent corrosion, but most of them are not effective against the biofilms, and they are toxic and not degradable. Biocides easily kill corrosive bacteria, which are as the planktonic and sessile population, but they are not effective against biofilm. New antimicrobial and eco-friendly substances are now being developed. Biosurfactants are proved to be one of the best eco-friendly anticorrosion substances to inhibit the biocorrosion process and protect materials against corrosion. Biosurfactants have recently became one of the important products of bioeconomy with multiplying applications, while there is scare knowledge on their using in biocorrosion treatment. In this review, the recent findings on the application of biosurfactants as eco-friendly and innovative biocides against biocorrosion are highlighted.
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Jahan R, Bodratti AM, Tsianou M, Alexandridis P. Biosurfactants, natural alternatives to synthetic surfactants: Physicochemical properties and applications. Adv Colloid Interface Sci 2020; 275:102061. [PMID: 31767119 DOI: 10.1016/j.cis.2019.102061] [Citation(s) in RCA: 145] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/31/2019] [Accepted: 11/03/2019] [Indexed: 12/29/2022]
Abstract
Biosurfactants comprise a wide array of amphiphilic molecules synthesized by plants, animals, and microbes. The synthesis route dictates their molecular characteristics, leading to broad structural diversity and ensuing functional properties. We focus here on low molecular weight (LMW) and high molecular weight (HMW) biosurfactants of microbial origin. These are environmentally safe and biodegradable, making them attractive candidates for applications spanning cosmetics to oil recovery. Biosurfactants spontaneously adsorb at various interfaces and self-assemble in aqueous solution, resulting in useful physicochemical properties such as decreased surface and interfacial tension, low critical micellization concentrations (CMCs), and ability to solubilize hydrophobic compounds. This review highlights the relationships between biosurfactant molecular composition, structure, and their interfacial behavior. It also describes how environmental factors such as temperature, pH, and ionic strength can impact physicochemical properties and self-assembly behavior of biosurfactant-containing solutions and dispersions. Comparison between biosurfactants and their synthetic counterparts are drawn to illustrate differences in their structure-property relationships and potential benefits. Knowledge of biosurfactant properties organized along these lines is useful for those seeking to formulate so-called green or natural products with novel and useful properties.
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63
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Sar P, Ghosh A, Scarso A, Saha B. Surfactant for better tomorrow: applied aspect of surfactant aggregates from laboratory to industry. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04017-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Yin Y, Gu J, Wang X, Zhang Y, Zheng W, Chen R, Wang X. Effects of rhamnolipid and Tween-80 on cellulase activities and metabolic functions of the bacterial community during chicken manure composting. BIORESOURCE TECHNOLOGY 2019; 288:121507. [PMID: 31128544 DOI: 10.1016/j.biortech.2019.121507] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 05/10/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Metabolism by microorganisms is the basis of composting. In this study, the dynamic changes in the enzyme activity levels, bacterial community structure, and metabolism functions were investigated during chicken manure composting with an added bio-surfactant (rhamnolipid) or chemical surfactant (Tween-80). The results showed that rhamnolipid and Tween-80 improved the quality of the finished compost in terms of the C/N ratio, water-soluble carbon content, germination index, E4/E6 ratio, and the cellulase activity, especially with Tween-80. Furthermore, the bacterial communities were determined by high-throughput sequencing, and their metabolism functions were evaluated using the PICRUSt and Biolog methods. Tween-80 greatly influenced the bacterial community structure, where it enhanced the abundances of bacteria that degrade cellulose and lignin (e.g., members of the order Bacillales) and the capacities for carbohydrate and amino acid metabolism. Network analysis also showed that the order Bacillales was closely related to the metabolism of characteristic carbon sources, especially carbohydrates.
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Affiliation(s)
- Yanan Yin
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China; College of Resources and Environmental Sciences, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China
| | - Jie Gu
- College of Resources and Environmental Sciences, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China.
| | - Xiaojuan Wang
- College of Resources and Environmental Sciences, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Yajun Zhang
- College of Resources and Environmental Sciences, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Wei Zheng
- College of Resources and Environmental Sciences, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Rong Chen
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, People's Republic of China
| | - Xiaochang Wang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, People's Republic of China
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Fuochi V, Coniglio MA, Laghi L, Rescifina A, Caruso M, Stivala A, Furneri PM. Metabolic Characterization of Supernatants Produced by Lactobacillus spp. With in vitro Anti- Legionella Activity. Front Microbiol 2019; 10:1403. [PMID: 31293545 PMCID: PMC6606692 DOI: 10.3389/fmicb.2019.01403] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 06/04/2019] [Indexed: 12/28/2022] Open
Abstract
Legionella pneumophila is an organism of public health interest for its presence in water supply systems and other humid thermal habitats. In this study, ten cell-free supernatants produced by Lactobacillus strains were evaluated for their ability to inhibit L. pneumophila strains isolated from hot tap water. Production of antimicrobial substances by Lactobacillus strains were assessed by agar well diffusion test on BCYE agar plates pre-inoculated with L. pneumophila. Cell-free supernatants (CFS) showed antimicrobial activity against all Legionella strains tested: L. rhamnosus and L. salivarius showed the highest activity. By means of a proton-based nuclear magnetic resonance (1H-NMR) spectroscopy, we detected and quantified the Lactobacillus metabolites of these CFSs, so to gain information about which metabolic pathway was likely to be connected to the observed inhibition activity. A panel of metabolites with variations in concentration were revealed, but considerable differences among inter-species were not showed as reported in a similar work by Foschi et al. (2018). More than fifty molecules belonging mainly to the groups of amino acids, organic acids, monosaccharides, ketones, and alcohols were identified in the metabolome. Significant differences were recorded comparing the metabolites found in the supernatants of strains grown in MRS with glycerol and the same strains grown in MRS without supplements. Indeed, pathway analysis revealed that glycine, serine and threonine, pyruvate, and sulfur metabolic pathways had a higher impact when strains were grown in MRS medium with a supplement such as glycerol. Among the metabolites identified, many were amino acids, suggesting the possible presence of bacteriocins which could be linked to the anti-Legionella activity shown by cell-free supernatants.
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Affiliation(s)
- Virginia Fuochi
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), University of Catania, Catania, Italy
| | - Maria Anna Coniglio
- Department of Medical and Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Catania, Italy
| | - Luca Laghi
- Centre of Foodomics, Department of Agro-Food Science and Technology, University of Bologna, Bologna, Italy
| | | | - Massimo Caruso
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), University of Catania, Catania, Italy.,Department of Clinical and Experimental Medicine (MEDCLIN), University of Catania, Catania, Italy
| | - Aldo Stivala
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), University of Catania, Catania, Italy
| | - Pio Maria Furneri
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), University of Catania, Catania, Italy
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66
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Sun W, Ali I, Liu J, Dai M, Cao W, Jiang M, Saren G, Yu X, Peng C, Naz I. Isolation, identification, and characterization of diesel-oil-degrading bacterial strains indigenous to Changqing oil field, China. J Basic Microbiol 2019; 59:723-734. [PMID: 31081547 DOI: 10.1002/jobm.201800674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/04/2019] [Accepted: 04/25/2019] [Indexed: 11/07/2022]
Abstract
In the present study, 12 indigenous diesel-oil-degrading bacteria were isolated from the petroleum-contaminated soils of the Changqing oil field (Xi'an, China). Measurement of the diesel-oil degradation rates of these strains by the gravimetric method revealed that they ranged from 42% to 66% within 2 weeks. The highest degradation rates were observed from strains CQ8-1 (66%), CQ8-2 (62.6%), and CQ11 (59%), which were identified as Bacillus thuringiensis, Ochrobactrum anthropi, and Bordetella bronchialis, respectively, based on their 16S rDNA sequences. Moreover, the physiological and biochemical properties of these three strains were analyzed by Gram staining, catalase, oxidase, and Voges-Proskauer tests. Transmission electron microscopy showed that all three strains were rod shaped with flagella. Gas chromatography and mass spectrometric analyses indicated that medium- and long-chain n-alkanes in diesel oil (C11-C29) were degraded to different degrees by B. thuringiensis, O. anthropi, and B. bronchialis, and the degradation rates gradually decreased as the carbon numbers increased. Overall, the results of this study indicate strains CQ8-1, CQ8-2, and CQ11 might be useful for environmentally friendly and cost-effective bioremediation of oil-contaminated soils.
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Affiliation(s)
- Wuyang Sun
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
| | - Imran Ali
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
| | - Jiwei Liu
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
| | - Min Dai
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing, China
| | - Wenrui Cao
- The Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Mingyu Jiang
- The Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Gaowa Saren
- The Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Xinke Yu
- The Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Changsheng Peng
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing, China
| | - Iffat Naz
- Department of Biology, Qassim University, Buraidah, Kingdom of Saudi Arabia (KSA)
- Department of Microbiology, Quaid-i-Azam University, Islamabad, Pakistan
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Liu J, Li W, Zhu X, Zhao H, Lu Y, Zhang C, Lu Z. Surfactin effectively inhibits Staphylococcus aureus adhesion and biofilm formation on surfaces. Appl Microbiol Biotechnol 2019; 103:4565-4574. [PMID: 31011774 DOI: 10.1007/s00253-019-09808-w] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/20/2019] [Accepted: 03/26/2019] [Indexed: 11/26/2022]
Abstract
Biosurfactants are amphiphilic compounds that composed of hydrophilic and hydrophobic moieties, which possess the ability of self-organizing between phases, reducing the interfacial tension, and forming aggregates such as micelles. This spontaneous process results in significant changes in surface properties that directly influence the adherence of microorganisms. In this study, the ability of surfactin, a biosurfactant produced by Bacillus subtilis in reducing adhesion and disrupting the presence of biofilm of Staphylococcus aureus (S. aureus) on several surfaces, was investigated. Significant biofilm removal was observed on glass, polystyrene, and stainless steel surfaces. Furthermore, we explored the probable mechanism about how surfactin affected S. aureus biofilm formation. Based on our findings, surfactin had a significant effect on the polysaccharides production and especially decreased the percentage of alkali-soluble polysaccharide in biofilms. It also down-regulated the expression of icaA and icaD significantly, which are necessary for the important constituents to take shape of staphylococcal biofilm. In addition, it was found that the lipopeptide affected the quorum sensing (QS) system in S. aureus through regulating the auto inducer 2 (AI-2) activity, which has been reported to be negative for biofilm formation in S. aureus. These above properties could be applied in developing surfactin as a potential pre-coating agent on material surfaces to prevent S. aureus biofilm formation.
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Affiliation(s)
- Jin Liu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wei Li
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoyu Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Haizhen Zhao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yingjian Lu
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, 210003, China
| | - Chong Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhaoxin Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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Hogan DE, Tian F, Malm SW, Olivares C, Palos Pacheco R, Simonich MT, Hunjan AS, Tanguay RL, Klimecki WT, Polt R, Pemberton JE, Curry JE, Maier RM. Biodegradability and toxicity of monorhamnolipid biosurfactant diastereomers. JOURNAL OF HAZARDOUS MATERIALS 2019; 364:600-607. [PMID: 30390580 PMCID: PMC6289288 DOI: 10.1016/j.jhazmat.2018.10.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/28/2018] [Accepted: 10/16/2018] [Indexed: 05/09/2023]
Abstract
Synthetic monorhamnolipids differ from biologically produced material because they are produced as single congeners, depending on the β-hydroxyalkanoic acid used during synthesis. Each congener is produced as one of four possible diastereomers resulting from two chiral centers at the carbinols of the lipid tails [(R,R), (R,S), (S,R) and (S,S)]. We compare the biodegradability (CO2 respirometry), acute toxicity (Microtox assay), embryo toxicity (Zebrafish assay), and cytotoxicity (xCELLigence and MTS assays) of synthetic rhamnosyl-β-hydroxydecanoyl-β-hydroxydecanoate (Rha-C10-C10) monorhamnolipids against biosynthesized monorhamnolipid mixtures (bio-mRL). All Rha-C10-C10 diastereomers and bio-mRL were inherently biodegradable ranging from 34 to 92% mineralized. The Microtox assay showed all Rha-C10-C10 diastereomers and bio-mRL are slightly toxic according to the US EPA ecotoxicity categories with 5 min EC50 values ranging from 39.6 to 87.5 μM. The zebrafish assay showed that of 22 developmental endpoints tested, only mortality was observed at 120 h post fertilization; all Rha-C10-C10 diastereomers and bio-mRL caused significant mortality at 640 μM, except the Rha-C10-C10 (R,R) which showed no developmental effects. xCELLigence and MTS showed IC50 values ranging from 103.4 to 191.1 μM for human lung cell line H1299 after 72 h exposure. These data provide key information regarding Rha-C10-C10 diastereomers that is pertinent when considering potential applications.
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Affiliation(s)
- David E Hogan
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, 85721, USA
| | - Fei Tian
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, 85721, USA
| | - Scott W Malm
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ, 85721, USA
| | - Christopher Olivares
- Department of Chemical and Environmental Engineering, The University of Arizona, Tucson, AZ, 85721, USA
| | - Ricardo Palos Pacheco
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ, 85721, USA
| | - Michael T Simonich
- Department of Environmental and Molecular Toxicology, Oregon State University, 1007 Agriculture & Life Sciences Building, Corvallis, OR 97331, USA
| | - Anoop S Hunjan
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ, 85721, USA
| | - Robert L Tanguay
- Department of Environmental and Molecular Toxicology, Oregon State University, 1007 Agriculture & Life Sciences Building, Corvallis, OR 97331, USA
| | - Walter T Klimecki
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ, 85721, USA
| | - Robin Polt
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ, 85721, USA
| | - Jeanne E Pemberton
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ, 85721, USA
| | - Joan E Curry
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, 85721, USA
| | - Raina M Maier
- Department of Soil, Water and Environmental Science, The University of Arizona, Tucson, AZ, 85721, USA.
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69
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Abdul Rub M. Aggregation and interfacial phenomenon of amphiphilic drug under the influence of pharmaceutical excipients (green/biocompatible gemini surfactant). PLoS One 2019; 14:e0211077. [PMID: 30726255 PMCID: PMC6364909 DOI: 10.1371/journal.pone.0211077] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 01/07/2019] [Indexed: 12/04/2022] Open
Abstract
In the current study, we have examined the interaction amongst an antidepressant drug amitriptyline hydrochloride (AMH) and ethane-1, 2-diyl bis(N,N-dimethyl-N-cetylammoniumacetoxy) dichloride (16-E2-16, a green gemini surfactant) through tensiometric and fluorimetric techniques in aqueous/electrolyte/urea solutions. Significant variations are observed in the various evaluated parameters in the present study. Gemini 16-E2-16 has outstanding surface properties along with a much lower cmc value, demonstrating very little toxicity as well as considerable antimicrobial activity. The cmc values of mixtures decrease through increase in mole fraction (α1) of 16-E2-16, which specifies the nonideality of the solution mixtures, along with demonstrating the occurrence of mixed micellization too. Negative βRub values signify on the whole attractive force of interaction between constituents of mixed micelles. Owing to the incidence of electrolyte NaCl (50 mmol.kg–1), lowering of the micelles’ surface charge happens, resulting in aggregation taking place at lower concentration while the presence of urea (NH2CONH2) halts micellization taking place, which means the cmc value increases in the attendance of urea. The ΔGmo values for all systems were negative along with the presence of electrolyte/urea. The excess free energy (Gex) of studied mixed systems was also estimated and found to be negative for all the systems. Using the fluorescence quenching method, the micelle aggregation number (Nagg) was evaluated and it was found that the contribution of gemini surfactant was always more than that of the AMH and their value enhances in the existence of electrolyte while decreasing in the attendance of NH2CONH2 in the system. In addition, other fluorescence parameters such as micropolarity (I1/I3), dielectric constant (Dexp) as well as Stern–Volmer binding constants (Ksv) of mixed systems were evaluated and the results showed the synergistic performance of the AMH + 16-E2-16 mixtures. Along with tensiometric and fluorimetric techniques, FT-IR spectroscopy was also engaged to reveal the interaction among constituents.
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Affiliation(s)
- Malik Abdul Rub
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- * E-mail:
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70
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Experimental Investigations of Behaviour of Biosurfactants in Brine Solutions Relevant to Hydrocarbon Reservoirs. COLLOIDS AND INTERFACES 2019. [DOI: 10.3390/colloids3010024] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, we investigated the behaviour of rhamnolipid and Greenzyme in brine solutions relevant to hydrocarbon reservoir. Prior to this work, several studies only reported the behaviour of the biosurfactants dissolved in sodium chloride solutions of varied salinity. The results of this study are relevant to the application of the biosurfactants in enhanced oil recovery, during which the compounds are injected into reservoir saturated with formation water, typically of high salinity and complex composition. Surface tension and conductivity methods were used to determine the critical micelle concentrations of the biosurfactants, Gibbs surface excess concentrations and standard free energy at water-air interface. The results show that rhamnolipid and Greenzyme could reduce the surface tension of water from 72.1 ± 0.2 mN/m to 34.7 ± 0.4 mN/m and 47.1 ± 0.1 mN/m respectively. They were also found to be stable in high salinity and high temperature with rhamnolipid being sensitive to brine salinity, composition and pH while Greenzyme showed tolerance for high salinity. Furthermore, the Gibbs standard free energy of micellisation shows that rhamnolipid and Greenzyme have the tendency to spontaneously form micelles with rhamnolipid showing more surface adsorption. However from maximal Gibbs surface excess concentration calculations, Greenzyme monomers tend to favour aggregation more than that of rhamnolipid.
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71
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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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72
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Optimization Kerosene Bio-degradation by a Local Soil Bacterium Isolate Klebsiella pneumoniae Sp. pneumonia. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2018. [DOI: 10.22207/jpam.12.4.41] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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73
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Klintham P, Tongchitpakdee S, Chinsirikul W, Mahakarnchanakul W. Two-step washing with commercial vegetable washing solutions, and electrolyzed oxidizing microbubbles water to decontaminate sweet basil and Thai mint: A case study. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.07.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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74
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Bio-emulsifying and biodegradation activities of syringafactin producing Pseudomonas spp. strains isolated from oil contaminated soils. Biodegradation 2018; 30:259-272. [DOI: 10.1007/s10532-018-9861-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 10/17/2018] [Indexed: 12/11/2022]
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75
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Control of Biofilm Formation in Healthcare: Recent Advances Exploiting Quorum-Sensing Interference Strategies and Multidrug Efflux Pump Inhibitors. MATERIALS 2018; 11:ma11091676. [PMID: 30201944 PMCID: PMC6163278 DOI: 10.3390/ma11091676] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/18/2018] [Accepted: 09/07/2018] [Indexed: 12/28/2022]
Abstract
Biofilm formation in healthcare is an issue of considerable concern, as it results in increased morbidity and mortality, imposing a significant financial burden on the healthcare system. Biofilms are highly resistant to conventional antimicrobial therapies and lead to persistent infections. Hence, there is a high demand for novel strategies other than conventional antibiotic therapies to control biofilm-based infections. There are two approaches which have been employed so far to control biofilm formation in healthcare settings: one is the development of biofilm inhibitors based on the understanding of the molecular mechanism of biofilm formation, and the other is to modify the biomaterials which are used in medical devices to prevent biofilm formation. This review will focus on the recent advances in anti-biofilm approaches by interrupting the quorum-sensing cellular communication system and the multidrug efflux pumps which play an important role in biofilm formation. Research efforts directed towards these promising strategies could eventually lead to the development of better anti-biofilm therapies than the conventional treatments.
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Abstract
Environmental pollution arising from metal(loid)s is a result of industrialization, and has led to serious health issues. Conventional methods of metal(loid) removal often results in generation of secondary waste which is toxic to the environment. Bioremediation in combination with physicochemical techniques offer an excellent and effective means of removal. The use of secondary metabolites and extracellular polymers produced by microorganisms is an effective procedure employed in metal(loid) sequestration and reduction in toxicity of contaminated environments. These biopolymers have different chemical structures and have shown varied selectivity to different metal(loid)s. This review discusses various microbial polymers, their mechanism of metal(loid) removal and their potential application in remediation of contaminated environment.
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Ranfaing J, Dunyach-Remy C, Lavigne JP, Sotto A. Propolis potentiates the effect of cranberry (Vaccinium macrocarpon) in reducing the motility and the biofilm formation of uropathogenic Escherichia coli. PLoS One 2018; 13:e0202609. [PMID: 30138443 PMCID: PMC6107218 DOI: 10.1371/journal.pone.0202609] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 08/06/2018] [Indexed: 12/28/2022] Open
Abstract
One strategy to prevent urinary tract infections is the use of natural products such as cranberry (Vaccinium macrocarpon) and propolis. The objective of this study was to evaluate the impact of these products alone and combined on the motility and biofilm formation of a collection of representative uropathogenic Escherichia coli (UPEC). Motility was evaluated by the swarming and swimming capacity of the isolates in presence/absence of cranberry ± propolis. Early and late biofilm formation was observed with the Biofilm Ring test (BioFilm Control) and the crystal violet method. Cranberry alone was seen to have a variable effect on motility and biofilm formation unrelated to bacterial characteristics, but a reduced motility and biofilm formation was observed for all the isolates in the presence of cranberry + propolis. These results suggest that cranberry alone doesn’t work on all the E. coli strains and propolis potentiates the effect of cranberry on UPEC, representing a new strategy to prevent recurrent urinary tract infections.
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Affiliation(s)
- Jérémy Ranfaing
- French National Institute of Health and Medical Research Unit 1047, University Montpellier, Faculty of Medicine, Nîmes, France
| | - Catherine Dunyach-Remy
- French National Institute of Health and Medical Research Unit 1047, University Montpellier, Faculty of Medicine, Nîmes, France
- Department of Microbiology, Nîmes University Hospital, Nîmes, France
| | - Jean-Philippe Lavigne
- French National Institute of Health and Medical Research Unit 1047, University Montpellier, Faculty of Medicine, Nîmes, France
- Department of Microbiology, Nîmes University Hospital, Nîmes, France
- * E-mail:
| | - Albert Sotto
- French National Institute of Health and Medical Research Unit 1047, University Montpellier, Faculty of Medicine, Nîmes, France
- Department of Infectious Diseases, Nîmes University Hospital, Nîmes, France
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78
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Pullusurfactans A–E, new biosurfactants produced by Aureobasidium pullulans A11211-4-57 from a fleabane, Erigeron annus (L.) pers. J Antibiot (Tokyo) 2018; 71:920-926. [DOI: 10.1038/s41429-018-0089-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/16/2018] [Accepted: 08/02/2018] [Indexed: 11/08/2022]
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79
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On the road towards tailor-made rhamnolipids: current state and perspectives. Appl Microbiol Biotechnol 2018; 102:8175-8185. [DOI: 10.1007/s00253-018-9240-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 07/11/2018] [Accepted: 07/11/2018] [Indexed: 12/20/2022]
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80
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Pizzolante G, Durante M, Rizzo D, Di Salvo M, Tredici SM, Tufariello M, De Paolis A, Talà A, Mita G, Alifano P, De Benedetto GE. Characterization of two Pantoea strains isolated from extra-virgin olive oil. AMB Express 2018; 8:113. [PMID: 29992518 PMCID: PMC6039349 DOI: 10.1186/s13568-018-0642-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/05/2018] [Indexed: 11/10/2022] Open
Abstract
The olive oil is an unfavorable substrate for microbial survival and growth. Only few microorganisms use olive oil fatty acids as carbon and energy sources, and survive in the presence of olive oil anti-microbial components. In this study, we have evaluated the occurrence of microorganisms in 1-year-stored extra-virgin olive oil samples. We detected the presence of bacterial and yeast species with a recurrence of the bacterium Stenotrophomonas rhizophila and yeast Sporobolomyces roseus. We then assayed the ability of all isolates to grow in a mineral medium supplemented with a commercial extra-virgin olive oil as a sole carbon and energy source, and analyzed the utilization of olive oil fatty acids during their growth. We finally focused on two bacterial isolates belonging to the species Pantoea septica. Both these isolates produce carotenoids, and one of them synthesizes bioemulsifiers enabling the bacteria to better survive/growth in this unfavorable substrate. Analyses point to a mixture of glycolipids with glucose, galactose and xylose as carbohydrate moieties whereas the lipid domain was constituted by C6-C10 β-hydroxy carboxylic acids.
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Affiliation(s)
- Graziano Pizzolante
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Miriana Durante
- Istituto di Scienze Delle Produzioni Alimentari-CNR, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Daniela Rizzo
- Laboratory of Analytical and Isotopic Mass Spectrometry, Department of Cultural Heritage, University of Salento, Lecce, Italy
| | - Marco Di Salvo
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Salvatore Maurizio Tredici
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Maria Tufariello
- Istituto di Scienze Delle Produzioni Alimentari-CNR, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Angelo De Paolis
- Istituto di Scienze Delle Produzioni Alimentari-CNR, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Adelfia Talà
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Giovanni Mita
- Istituto di Scienze Delle Produzioni Alimentari-CNR, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Pietro Alifano
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Giuseppe Egidio De Benedetto
- Laboratory of Analytical and Isotopic Mass Spectrometry, Department of Cultural Heritage, University of Salento, Lecce, Italy
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81
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Speranza B, Liso A, Corbo MR. Use of design of experiments to optimize the production of microbial probiotic biofilms. PeerJ 2018; 6:e4826. [PMID: 30018849 PMCID: PMC6044272 DOI: 10.7717/peerj.4826] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 05/02/2018] [Indexed: 12/31/2022] Open
Abstract
Here, we describe the production of a probiotic biofilm through three intermediate steps: (1) measurement of the adhesion capacity of 15 probiotic strains to evaluate their tendency to form biofilm on different surfaces (stainless steel, glass, and polycarbonate); (2) evaluation of the effects of pH, temperature, cellular growth phase, agitation, and presence of surfactants on probiotic biofilm formation (BF) through the Design of Experiments (DoE) approach; (3) study of the effects of pH, temperature and surfactants concentration on probiotic BF using the Central Composite Design. Finally, we show that biofilms pre-formed by selected probiotics can delay the growth of pathogens, such as Listeria monocytogenes chosen as model organism. Among the tested strains, Bifidobacterium infantis DSM20088 and Lactobacillus reuteri DSM20016 were found to be as the probiotics able to ensure the greatest adhesion (over 6 Log CFU cm2) to the surfaces tested in a very short time (<24 h). Cellular growth phase and agitation of the medium were factors not affecting BF, pH exerted a very bland effect and a greater tendency to adhesion was observed when the temperature was about 30 °C. The results obtained in the last experimental phase suggest that our probiotic biofilms can be used as an efficient mean to delay the growth of L. monocytogenes: the λ phase length, in fact, was longer in samples containing probiotic biofilms (0.30-1.02 h) against 0.08 h observed in the control samples. A reduction of the maximum cell load was also observed (6.99-7.06 Log CFU mL-1 against about 8 Log CFU mL-1 observed in the control samples).
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Affiliation(s)
- Barbara Speranza
- Department of the Science of Agriculture, Food and Environment (SAFE), University of Foggia, Foggia, Italy
| | - Arcangelo Liso
- Department of Medical and Surgical Sciences, University of Foggia, Polo Biomedico, Foggia, Italy
| | - Maria Rosaria Corbo
- Department of the Science of Agriculture, Food and Environment (SAFE), University of Foggia, Foggia, Italy
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82
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Optimization of rhamnolipid biosurfactant production from Serratia rubidaea SNAU02 under solid-state fermentation and its biocontrol efficacy against Fusarium wilt of eggplant. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.aasci.2017.11.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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83
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Ghasemi A, Moosavi-Nasab M, Behzadnia A, Rezaei M. Enhanced biosurfactant production with low-quality date syrup by Lactobacillus rhamnosus using a fed-batch fermentation. Food Sci Biotechnol 2018; 27:1137-1144. [PMID: 30263844 DOI: 10.1007/s10068-018-0366-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 03/18/2018] [Accepted: 03/25/2018] [Indexed: 10/17/2022] Open
Abstract
Novel strategies toward the use of low-cost media to produce food-grade microbial products have been considerably attended in recent years. In this study, date syrup obtained from low-quality date fruits was implemented for biosurfactant production by the probiotic bacterium, Lactobacillus rhamnosus PTCC 1637. The most level of biosurfactant was achieved through fermentation in a bioreactor with a lactose feeding phase, up to 24 h. Critical micelle concentration of the cell-bound biosurfactant was found to be 6.0 mg/ml with a minimum surface tension value of 39.00 mN/m and a maximum emulsifying index of 42%. The spectrum of Fourier transform infrared spectroscopy taken from the cell-bound biosurfactant suggests that it should be a multi-component mixture of protein and polysaccharides associated with phosphate groups. The results indicated the potential for developing strategies toward the low-cost production of food-grade biomaterials by probiotic microorganisms.
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Affiliation(s)
- Abouzar Ghasemi
- 1Department of Food Science and Technology, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Marzieh Moosavi-Nasab
- 1Department of Food Science and Technology, College of Agriculture, Shiraz University, Shiraz, Iran.,2Seafood Processing Research Group, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Asma Behzadnia
- 1Department of Food Science and Technology, College of Agriculture, Shiraz University, Shiraz, Iran
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84
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Abdel-Mawgoud AM, Stephanopoulos G. Simple glycolipids of microbes: Chemistry, biological activity and metabolic engineering. Synth Syst Biotechnol 2018; 3:3-19. [PMID: 29911195 PMCID: PMC5884252 DOI: 10.1016/j.synbio.2017.12.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/14/2017] [Accepted: 12/04/2017] [Indexed: 01/15/2023] Open
Abstract
Glycosylated lipids (GLs) are added-value lipid derivatives of great potential. Besides their interesting surface activities that qualify many of them to act as excellent ecological detergents, they have diverse biological activities with promising biomedical and cosmeceutical applications. Glycolipids, especially those of microbial origin, have interesting antimicrobial, anticancer, antiparasitic as well as immunomodulatory activities. Nonetheless, GLs are hardly accessing the market because of their high cost of production. We believe that experience of metabolic engineering (ME) of microbial lipids for biofuel production can now be harnessed towards a successful synthesis of microbial GLs for biomedical and other applications. This review presents chemical groups of bacterial and fungal GLs, their biological activities, their general biosynthetic pathways and an insight on ME strategies for their production.
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Affiliation(s)
| | - Gregory Stephanopoulos
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA
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85
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Mouafo TH, Mbawala A, Ndjouenkeu R. Effect of Different Carbon Sources on Biosurfactants' Production by Three Strains of Lactobacillus spp. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5034783. [PMID: 29651438 PMCID: PMC5832067 DOI: 10.1155/2018/5034783] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/03/2017] [Accepted: 01/09/2018] [Indexed: 01/20/2023]
Abstract
The potential of three indigenous bacterial strains (Lactobacillus delbrueckii N2, Lactobacillus cellobiosus TM1, and Lactobacillus plantarum G88) for the production of biosurfactants using sugar cane molasses or glycerol as substrates was investigated through emulsifying, surface tension, and antimicrobial activities. The different biosurfactants produced with molasses as substrate exhibited high surface tension reduction from 72 mN/m to values ranged from 47.50 ± 1.78 to 41.90 ± 0.79 mN/m and high emulsification index ranging from 49.89 ± 5.28 to 81.00 ± 1.14%. Whatever the Lactobacillus strain or the substrate used, the biosurfactants produced showed antimicrobial activities against Candida albicans LV1, some pathogenic and/or spoilage Gram-positive and Gram-negative bacteria. The yields of biosurfactants with molasses (2.43 ± 0.09 to 3.03 ± 0.09 g/L) or glycerol (2.32 ± 0.19 to 2.82 ± 0.05 g/L) were significantly (p < 0.05) high compared to those obtained with MRS broth as substrate (0.30 ± 0.02 to 0.51 ± 0.09 g/L). Preliminary characterization of crude biosurfactants reveals that they are mainly glycoproteins and glycolipids with molasses and glycerol as substrate, respectively. Therefore, sugar cane molasses or glycerol can effectively be used by Lactobacillus strains as low-cost substrates to increase their biosurfactants production.
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Affiliation(s)
- Tene Hippolyte Mouafo
- Centre for Research on Food and Nutrition, Institute of Medical Research and Medicinal Plants Studies, P.O. Box 6163, Yaounde, Cameroon
- Department of Food Sciences and Nutrition, National School of Agro-Industrial Sciences, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon
| | - Augustin Mbawala
- Department of Food Sciences and Nutrition, National School of Agro-Industrial Sciences, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon
| | - Robert Ndjouenkeu
- Department of Food Sciences and Nutrition, National School of Agro-Industrial Sciences, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon
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86
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Pedraza-de la Cuesta S, Keijzers L, van der Wielen LAM, Cuellar MC. Integration of Gas Enhanced Oil Recovery in Multiphase Fermentations for the Microbial Production of Fuels and Chemicals. Biotechnol J 2018; 13:e1700478. [DOI: 10.1002/biot.201700478] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 12/21/2017] [Indexed: 11/07/2022]
Affiliation(s)
| | - Lore Keijzers
- Department of Biotechnology, Delft University of Technology; van der Maasweg 9 2629HZ Delft The Netherlands
| | - Luuk A. M. van der Wielen
- Department of Biotechnology, Delft University of Technology; van der Maasweg 9 2629HZ Delft The Netherlands
- Bernal Institute, University of Limerick; Castletroy Limerick Ireland
- BE-Basic Foundation; Mijnbouwstraat 120 2628 RX Delft The Netherlands
| | - Maria C. Cuellar
- Department of Biotechnology, Delft University of Technology; van der Maasweg 9 2629HZ Delft The Netherlands
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87
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Tan Y, Leonhard M, Moser D, Schneider-Stickler B. Inhibition activity of Lactobacilli supernatant against fungal-bacterial multispecies biofilms on silicone. Microb Pathog 2017; 113:197-201. [DOI: 10.1016/j.micpath.2017.10.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/25/2017] [Accepted: 10/26/2017] [Indexed: 02/06/2023]
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88
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Ndlovu T, Rautenbach M, Khan S, Khan W. Variants of lipopeptides and glycolipids produced by Bacillus amyloliquefaciens and Pseudomonas aeruginosa cultured in different carbon substrates. AMB Express 2017; 7:109. [PMID: 28571307 PMCID: PMC5451376 DOI: 10.1186/s13568-017-0367-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 03/06/2017] [Indexed: 11/30/2022] Open
Abstract
The quantitative and qualitative effect of water immiscible and miscible carbon-rich substrates on the production of biosurfactants, surfactin and rhamnolipids, by Bacillus amyloliquefaciens ST34 and Pseudomonas aeruginosa ST5, respectively, was analysed. A small-scale high throughput 96 deep-well micro-culture method was utilised to cultivate the two strains in mineral salt medium (MSM) supplemented with the water miscible (glucose, glycerol, fructose and sucrose) and water immiscible carbon sources (diesel, kerosene and sunflower oil) under the same growth conditions. The biosurfactants produced by the two strains were isolated by acid precipitation followed by an organic solvent extraction. Ultra-performance liquid chromatography coupled to electrospray ionisation mass spectrometry was utilised to analyse yields and characterise the biosurfactant variants. For B. amyloliquefaciens ST34, maximum surfactin production was observed in the MSM supplemented with fructose (28 mg L−1). In addition, four surfactin analogues were produced by ST34 using the different substrates, however, the C13–C15 surfactins were dominant in all extracts. For P. aeruginosa ST5, maximum rhamnolipid production was observed in the MSM supplemented with glucose (307 mg L−1). In addition, six rhamnolipid congeners were produced by ST5 using different substrates, however, Rha–Rha–C10–C10 and Rha–C10–C10 were the most abundant in all extracts. This study highlights that the carbon sources utilised influences the yield and analogues/congeners of surfactin and rhamnolipids produced by B. amyloliquefaciens and P. aeruginosa, respectively. Additionally, glucose and fructose were suitable substrates for rhamnolipid and surfactin, produced by P. aeruginosa ST5 and B. amyloliquefaciens ST34, which can be exploited for bioremediation or as antimicrobial agents.
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89
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Abruzzo A, Giordani B, Parolin C, Vitali B, Protti M, Mercolini L, Cappelletti M, Fedi S, Bigucci F, Cerchiara T, Luppi B. Novel mixed vesicles containing lactobacilli biosurfactant for vaginal delivery of an anti-Candida agent. Eur J Pharm Sci 2017; 112:95-101. [PMID: 29138104 DOI: 10.1016/j.ejps.2017.11.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/09/2017] [Accepted: 11/10/2017] [Indexed: 01/01/2023]
Abstract
The purpose of this work was to prepare and characterize an innovative formulation for vaginal delivery of econazole nitrate, commonly used for the treatment of Candida infections. A novel biosurfactant isolated from a vaginal Lactobacillus strain was used to prepare phosphatidylcholine based mixed vesicles. Biosurfactant was produced by Lactobacillus gasseri BC9, isolated from the vagina of a healthy premenopausal woman, and was chemically characterized by FT-IR and ESI-MS. Mixed vesicles, obtained through film rehydration and extrusion method, were characterized in terms of size, zeta potential, encapsulation efficiency, mucoadhesion properties and econazole release. Moreover, the antimicrobial activity of the mixed vesicles was tested towards both planktonic cultures and biofilms of Candida albicans. Biosurfactant produced by L. gasseri BC9 was composed by peptide-like molecules containing hydrocarbon chains and possessed a high surface activity together with a low critical micelle concentration. All the mixed vesicles presented optimal diameter range (226-337nm) for topical vaginal administration. Econazole-loaded mixed vesicles containing biosurfactant showed higher encapsulation efficiency and mucoadhesion ability with respect to vesicles containing Tween 80. Further, they allowed a sustained release of econazole nitrate, maintaining the antifungal activity against C. albicans planktonic culture. Notably, biosurfactant-based vesicles were significantly more active than free econazole in the eradication of Candida biofilm. In conclusion, mixed vesicles are promising new vaginal delivery systems for the potential employment in the treatment of chronic infections.
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Affiliation(s)
- Angela Abruzzo
- Drug Delivery Research Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via San Donato 19/2, 40127 Bologna, Italy.
| | - Barbara Giordani
- Drug Delivery Research Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via San Donato 19/2, 40127 Bologna, Italy.
| | - Carola Parolin
- Beneficial Microbes Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via San Donato 19/2, 40127 Bologna, Italy.
| | - Beatrice Vitali
- Beneficial Microbes Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via San Donato 19/2, 40127 Bologna, Italy.
| | - Michele Protti
- Pharmaco-Toxicological Analysis Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via Belmeloro 6, 40126 Bologna, Italy.
| | - Laura Mercolini
- Pharmaco-Toxicological Analysis Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via Belmeloro 6, 40126 Bologna, Italy.
| | - Martina Cappelletti
- General and Applied Microbiology Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via Irnerio 42, 40126 Bologna, Italy.
| | - Stefano Fedi
- General and Applied Microbiology Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via Irnerio 42, 40126 Bologna, Italy.
| | - Federica Bigucci
- Drug Delivery Research Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via San Donato 19/2, 40127 Bologna, Italy.
| | - Teresa Cerchiara
- Drug Delivery Research Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via San Donato 19/2, 40127 Bologna, Italy.
| | - Barbara Luppi
- Drug Delivery Research Laboratory, Department of Pharmacy and Biotechnologies, Alma Mater Studiorum, Via San Donato 19/2, 40127 Bologna, Italy.
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90
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Williams FE, Lee AK, Orandi S, Sims SK, Lewis DM. Moringa oleifera functionalised sand - reuse with non-ionic surfactant dodecyl glucoside. JOURNAL OF WATER AND HEALTH 2017; 15:863-872. [PMID: 29215351 DOI: 10.2166/wh.2017.241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Moringa oleifera seeds are well known for their ability to cause flocculation in turbid water and facilitate bacterial inhibition. These effects are due to the cationic polypeptide MO2.1, which affects the surface charge of suspended particles and causes lysis of bacterial cells. However, the attachment of bacteria to MO2.1 prevents further bacterial attachment, reducing the effectiveness of the seeds. This research investigated the effect of surfactants on functionality and reuse of Moringa seeds to develop a sustainable water treatment technique. The seed extracts (MO2.1) were used with a functionalised sand system, and the sands were exposed to commercially available (ionic and non-ionic) surfactants, dodecyl glucoside and sodium dodecyl sulfate. Artificially polluted water contaminated with Escherichia coli was used to evaluate the efficiency of the system. The non-ionic surfactant was found to be effective at separating E. coli from the functionalised sand without the detachment of the MO2.1 and subsequent loss of the system efficiency. This was successfully repeated four times. The results demonstrated a sustainable, reusable technique to inhibit bacterial contamination in water.
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Affiliation(s)
- Frances E Williams
- School of Chemical Engineering, The University of Adelaide, Adelaide 5005, Australia E-mail:
| | - Andrew K Lee
- School of Chemical Engineering, The University of Adelaide, Adelaide 5005, Australia E-mail:
| | - Sanaz Orandi
- School of Chemical Engineering, The University of Adelaide, Adelaide 5005, Australia E-mail:
| | - Sarah K Sims
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy 5371, Australia
| | - David M Lewis
- School of Chemical Engineering, The University of Adelaide, Adelaide 5005, Australia E-mail:
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91
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Antibiofilm agents: A new perspective for antimicrobial strategy. J Microbiol 2017; 55:753-766. [PMID: 28956348 DOI: 10.1007/s12275-017-7274-x] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/31/2017] [Accepted: 08/31/2017] [Indexed: 02/08/2023]
Abstract
Biofilms are complex microbial architectures that attach to surfaces and encase microorganisms in a matrix composed of self-produced hydrated extracellular polymeric substances (EPSs). In biofilms, microorganisms become much more resistant to antimicrobial treatments, harsh environmental conditions, and host immunity. Biofilm formation by microbial pathogens greatly enhances survival in hosts and causes chronic infections that result in persistent inflammation and tissue damages. Currently, it is believed over 80% of chronic infectious diseases are mediated by biofilms, and it is known that conventional antibiotic medications are inadequate at eradicating these biofilm-mediated infections. This situation demands new strategies for biofilm-associated infections, and currently, researchers focus on the development of antibiofilm agents that are specific to biofilms, but are nontoxic, because it is believed that this prevents the development of drug resistance. Here, we review the most promising antibiofilm agents undergoing intensive research and development.
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92
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Hvidsten I, Mjøs SA, Bødtker G, Barth T. Lipids of Dietzia sp. A14101. Part II: A study of the dynamics of the release of surface active compounds by Dietzia sp. A14101 into the medium. Chem Phys Lipids 2017; 208:31-42. [PMID: 28837792 DOI: 10.1016/j.chemphyslip.2017.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 08/06/2017] [Accepted: 08/14/2017] [Indexed: 11/26/2022]
Abstract
Dietzia sp. A14101 isolated from an oil reservoir model column was found to induce a strong decrease of the interfacial tension (IFT) in hydrocarbon-water mixtures in the presence of the intact bacterial cells (Kowalewski et al., 2005). The strain was shown to be able to degrade a wide range of hydrocarbon substrates (Bødtker et al., 2009). Further studies showed that the surface-active compounds tentatively identified as glycolipids were produced by Dietzia sp. A14101 on non- and water-immiscible -hydrocarbon substrates, Part I (Hvidsten et al., 2017). The results suggested that biosurfactant (BS) was a mixture of several isomers. The study presented here is aimed to investigate whether BS are secreted into the aqueous medium, and if so, then at which phase of the culture growth and in which amounts - the dynamics of the BS release in incubations on water-immiscible hydrocarbons. Two methods of BS extraction from the medium were attempted and compared: a liquid-liquid extraction (LLE) and precipitation by acid. For qualitative and semi-quantitative assessment, gas chromatography-mass spectrometry (GC/MS), thin-layer chromatography (TLC), liquid chromatography-mass spectrometry (LC-MS), surface tension measurements (SFT), emulsification (E24) and oil-spreading tests were employed. The results indicated that BS only partially were secreted into the medium. Detectable amounts of glycolipids in media were first identified during the exponential growth phase. However, only a slight decrease of SFT was observed in the cell-free medium. The emulsification index values of the sampled material were lower than those reported for related strains. The results suggested that most of the BS produced by Dietzia sp. A14101 remains cell-bound during the culture development in a batch mode and only a narrow range of the BS isomers can be detected in small amounts in media.
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Affiliation(s)
- Ina Hvidsten
- Department of Chemistry, University of Bergen, Allégaten 41, 5007 Bergen, Norway.
| | - Svein Are Mjøs
- Department of Chemistry, University of Bergen, Allégaten 41, 5007 Bergen, Norway
| | - Gunhild Bødtker
- Uni Research CIPR, Uni Research, P.O. Box 7810, 5020 Bergen, Norway
| | - Tanja Barth
- Department of Chemistry, University of Bergen, Allégaten 41, 5007 Bergen, Norway
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93
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Abstract
Owing to their natural origin and environmental compatibility, interest in microbial surfactants or biosurfactants has gained attention during last few years. These characteristics fulfill the demand of regulatory agencies and society to use more sustained and green chemicals. Microbial-derived surfactants can replace synthetic surfactants in a great variety of industrial applications as detergents, foaming, emulsifiers, solubilizers, and wetting agents. Change in the trend of consumers toward natural from synthetic additives and the increasing health and environmental concerns have created demand for new "green" additives in foods. Apart from their inherent surface-active properties, biosurfactants have shown antimicrobial and anti-biofilm activities against food pathogens; therefore, biosurfactants can be versatile additives or ingredients of food processing. These interesting applications will be discussed in this review.
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Affiliation(s)
- Marcia Nitschke
- a Depto. Físico-Química , Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos CEP , SP , Brasil
| | - Sumária Sousa E Silva
- a Depto. Físico-Química , Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos CEP , SP , Brasil
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94
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García-Silvera EE, Martínez-Morales F, Bertrand B, Morales-Guzmán D, Rosas-Galván NS, León-Rodríguez R, Trejo-Hernández MR. Production and application of a thermostable lipase from Serratia marcescens
in detergent formulation and biodiesel production. Biotechnol Appl Biochem 2017; 65:156-172. [DOI: 10.1002/bab.1565] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 04/13/2017] [Indexed: 11/06/2022]
Affiliation(s)
| | - Fernando Martínez-Morales
- Centro de Investigación en Biotecnología; Universidad Autónoma del Estado de Morelos; Morelos México
| | - Brandt Bertrand
- Centro de Investigación en Biotecnología; Universidad Autónoma del Estado de Morelos; Morelos México
| | - Daniel Morales-Guzmán
- Centro de Investigación en Biotecnología; Universidad Autónoma del Estado de Morelos; Morelos México
| | | | - Renato León-Rodríguez
- Instituto de Investigaciones Biomédicas UNAM, Tercer circuito exterior; s/n, Cd. Universitaria Coyoacán México
| | - María R. Trejo-Hernández
- Centro de Investigación en Biotecnología; Universidad Autónoma del Estado de Morelos; Morelos México
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95
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Vasconcellos SP, Sierra-Garcia IN, Dellagnezze BM, Vicentini R, Midgley D, Silva CC, Santos Neto EV, Volk H, Hendry P, Oliveira VM. Functional and genetic characterization of hydrocarbon biodegrader and exopolymer-producing clones from a petroleum reservoir metagenomic library. ENVIRONMENTAL TECHNOLOGY 2017; 38:1139-1150. [PMID: 27485801 DOI: 10.1080/09593330.2016.1218940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Microbial degradation of petroleum is a worldwide issue, which causes physico-chemical changes in its compounds, diminishing its commercial value. Biosurfactants are chemically diverse molecules that can be produced by several microorganisms and can enable microbial access to hydrocarbons. In order to investigate both microbial activities, function-driven screening assays for biosurfactant production and hydrocarbon biodegradation were carried out from a metagenomic fosmid library. It was constructed from the total DNA extracted from aerobic and anaerobic enrichments from a Brazilian biodegraded petroleum sample. A sum of 10 clones were selected in order to evaluate their ability to produce exopolymers (EPS) with emulsifying activity, as well as to characterize the gene sequences, harbored by the fosmid clones, through 454 pyrosequencing. Functional analyses confirmed the ability of some clones to produce surfactant compounds. Regarding hydrocarbon as microbial carbon sources, n-alkane (in mixture or not) and naphthalene were preferentially consumed as substrates. Analysis of sequence data set revealed the presence of genes related to xenobiotics biodegradation and carbohydrate metabolism. These data were corroborated by the results of hydrocarbon biodegradation and biosurfactant production detected in the evaluated clones.
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Affiliation(s)
| | - Isabel N Sierra-Garcia
- b Microbial Resources Division, Research Center for Chemistry , Biology and Agriculture (CPQBA), University of Campinas - UNICAMP , Campinas , SP , Brazil
| | - Bruna M Dellagnezze
- b Microbial Resources Division, Research Center for Chemistry , Biology and Agriculture (CPQBA), University of Campinas - UNICAMP , Campinas , SP , Brazil
| | - Renato Vicentini
- c Center of Molecular Biology and Genetic Engineering - CBMEG/UNICAMP , Campinas , SP , Brazil
| | | | - Cynthia C Silva
- e Department of Microbiology , Federal University of Viçosa - UFV, CEP 36570-000 , Viçosa , MG , Brazil
| | | | | | | | - Valéria M Oliveira
- b Microbial Resources Division, Research Center for Chemistry , Biology and Agriculture (CPQBA), University of Campinas - UNICAMP , Campinas , SP , Brazil
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96
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Shao B, Liu Z, Zhong H, Zeng G, Liu G, Yu M, Liu Y, Yang X, Li Z, Fang Z, Zhang J, Zhao C. Effects of rhamnolipids on microorganism characteristics and applications in composting: A review. Microbiol Res 2017; 200:33-44. [PMID: 28527762 DOI: 10.1016/j.micres.2017.04.005] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 04/01/2017] [Accepted: 04/08/2017] [Indexed: 01/15/2023]
Abstract
Biosurfactant rhmnolipids have been applied in many fields, especially in environmental bioremediation. According to previous researches, many research groups have studied the influence of rhamnolipids on microorganism characteristics and/or its application in composting. In this review, the effects of rhamnolipids on the cell surface properties of microorganisms was discussed firstly, such as cell surface hydrophobicity (CSH), electrical, surface compounds, etc. Moreover, the deeper mechanisms were also discussed, such as the effects of rhamnolipids on the structural characteristics and functional characteristics of the cell membrane, and the effects of rhamnolipids on the related enzymes and genes. Additionally, the application of rhamnolipids in composting was discussed, which is an important way for pollutant biodegradation and resource reutilization. It is believed that rhamnolipids will play more and more important role in composting.
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Affiliation(s)
- Binbin Shao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhifeng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Hua Zhong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China; State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei 430072, PR China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Guansheng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Mingda Yu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yang Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Xin Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhigang Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhendong Fang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Juntao Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Chenghao Zhao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
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97
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Rostami A, Hashemi A, Takassi MA, Zadehnazari A. Experimental assessment of a lysine derivative surfactant for enhanced oil recovery in carbonate rocks: Mechanistic and core displacement analysis. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.01.042] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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98
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Utilization of Agro-Industry Residue for Rhamnolipid Production by P. aeruginosa AMB AS7 and Its Application in Chromium Removal. Appl Biochem Biotechnol 2017; 183:70-90. [DOI: 10.1007/s12010-017-2431-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Accepted: 01/27/2017] [Indexed: 11/25/2022]
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99
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Kannan S, Ashokkumar K, Krishnamoorthy G, Dhasayan A, Marudhamuthu M. Monitoring surfactant mediated defence of gastrointestinal Proteus mirabilis DMTMMK1 against pathogenic consortia of Vibrio cholerae. RSC Adv 2017. [DOI: 10.1039/c7ra01934c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic representation of the biosurfactant production and evaluation of anti-pathogenic potential.
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Affiliation(s)
- Suganya Kannan
- Department of Microbial Technology
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai-625021
- India
| | - Krithika Ashokkumar
- Department of Microbial Technology
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai-625021
- India
| | - Govindan Krishnamoorthy
- Department of Microbial Technology
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai-625021
- India
| | - Asha Dhasayan
- Aquatic Animal Health and Environment Division
- Central Institute of Brackish Water Aquaculture (ICAR-CIBA)
- Chennai 600 028
- India
| | - Murugan Marudhamuthu
- Department of Microbial Technology
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai-625021
- India
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100
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Hu Y, Zou W, Julita V, Ramanathan R, Tabor RF, Nixon-Luke R, Bryant G, Bansal V, Wilkinson BL. Photomodulation of bacterial growth and biofilm formation using carbohydrate-based surfactants. Chem Sci 2016; 7:6628-6634. [PMID: 28567253 PMCID: PMC5450525 DOI: 10.1039/c6sc03020c] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 08/03/2016] [Indexed: 01/06/2023] Open
Abstract
Naturally occurring and synthetic carbohydrate amphiphiles have emerged as a promising class of antimicrobial and antiadhesive agents that act through a number of dynamic and often poorly understood mechanisms. In this paper, we provide the first report on the application of azobenzene trans-cis photoisomerization for effecting spatial and temporal control over bacterial growth and biofilm formation using carbohydrate-based surfactants. Photocontrollable surface tension studies and small angle neutron scattering (SANS) revealed the diverse geometries and dimensions of self-assemblies (micelles) made possible through variation of the head group and UV-visible light irradiation. Using these light-addressable amphiphiles, we demonstrate optical control over the antibacterial activity and formation of biofilms against multi-drug resistant (MDR) Pseudomonas aeruginosa, methicillin-resistant Staphylococcus aureus (MRSA) and Gram-negative Escherichia coli. To probe the mechanism of bioactivity further, we evaluated the impact of trans-cis photoisomerization in these surfactants on bacterial motility and revealed photomodulated enhancement in swarming motility in P. aeruginosa. These light-responsive amphiphiles should attract significant interest as a new class of antibacterial agents and as investigational tools for probing the complex mechanisms underpinning bacterial adhesion and biofilm formation.
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Affiliation(s)
- Yingxue Hu
- School of Chemistry , Monash University , Victoria 3800 , Australia
| | - Wenyue Zou
- Ian Potter NanoBioSensing Facility , NanoBiotechnology Research Laboratory , School of Science , RMIT University , Victoria 3000 , Australia .
| | - Villy Julita
- School of Chemistry , Monash University , Victoria 3800 , Australia
| | - Rajesh Ramanathan
- Ian Potter NanoBioSensing Facility , NanoBiotechnology Research Laboratory , School of Science , RMIT University , Victoria 3000 , Australia .
| | - Rico F Tabor
- School of Chemistry , Monash University , Victoria 3800 , Australia
| | - Reece Nixon-Luke
- Centre for Molecular and Nanoscale Physics , School of Science , RMIT University , Victoria 3000 , Australia
| | - Gary Bryant
- Centre for Molecular and Nanoscale Physics , School of Science , RMIT University , Victoria 3000 , Australia
| | - Vipul Bansal
- Ian Potter NanoBioSensing Facility , NanoBiotechnology Research Laboratory , School of Science , RMIT University , Victoria 3000 , Australia .
| | - Brendan L Wilkinson
- School of Science and Technology , The University of New England , New South Wales 2351 , Australia .
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