Bio surfactant Production in Aerobic and Anaerobic Conditions by Different Species of the Genus Pseudomonas

Diaz De Rienzo, MA; Urdaneta, I; Dorta, B

Harnessing the Potential of Biosurfactants for Biomedical and Pharmaceutical Applications (2023)
Journal Article
Ceresa, C., Fracchia, L., Sansotera, A. C., De Rienzo, M. A. D., & Banat, I. M. (in press). Harnessing the Potential of Biosurfactants for Biomedical and Pharmaceutical Applications. Pharmaceutics, 15(8), 2156. https://doi.org/10.3390/pharmaceutics15082156

Biosurfactants (BSs) are microbial compounds that have emerged as potential alternatives to chemical surfactants due to their multifunctional properties, sustainability and biodegradability. Owing to their amphipathic nature and distinctive structura... Read More about Harnessing the Potential of Biosurfactants for Biomedical and Pharmaceutical Applications.

Surfactants: physicochemical interactions with biological macromolecules. (2021)
Journal Article
Aguirre-Ramirez, M., Silva-Jimenez, H., Banat, I., & de Rienzo, M. (2021). Surfactants: physicochemical interactions with biological macromolecules. Biotechnology Letters, 43, 523-535. https://doi.org/10.1007/s10529-020-03054-1

Macromolecules are essential cellular components in biological systems responsible for performing a large number of functions that are necessary for growth and perseverance of living organisms. Proteins, lipids and carbohydrates are three major class... Read More about Surfactants: physicochemical interactions with biological macromolecules..

Inhibitory Effects of Lipopeptides and Glycolipids on C. albicans-Staphylococcus spp. Dual-Species Biofilms. (2021)
Journal Article
Ceresa, C., Rinaldi, M., Tessarolo, F., Maniglio, D., Fedeli, E., Tambone, E., …Fracchia, L. (2021). Inhibitory Effects of Lipopeptides and Glycolipids on C. albicans-Staphylococcus spp. Dual-Species Biofilms. Frontiers in Microbiology, 11, https://doi.org/10.3389/fmicb.2020.545654

Microbial biofilms strongly resist host immune responses and antimicrobial treatments and are frequently responsible for chronic infections in peri-implant tissues. Biosurfactants (BSs) have recently gained prominence as a new generation of anti-adhe... Read More about Inhibitory Effects of Lipopeptides and Glycolipids on C. albicans-Staphylococcus spp. Dual-Species Biofilms..

In Silico Selection and In Vitro Evaluation of New Molecules That Inhibit the Adhesion of Streptococcus mutants through Antigen I/II (2020)
Journal Article
Eduardo Rivera Quiroga, R., Cardona, N., Padilla, L., Rivera, W., C., R., Alejandra Diaz De Rienzo, M., … C. Martinez, M. (2020). In Silico Selection and In Vitro Evaluation of New Molecules That Inhibit the Adhesion of Streptococcus mutants through Antigen I/II. International Journal of Molecular Sciences, 22(1), https://doi.org/10.3390/ijms22010377

Streptococcus mutans is the main early colonizing cariogenic bacteria because it recognizes salivary pellicle receptors. The Antigen I/II (Ag I/II) of S. mutans is among the most important adhesins in this process, and is involved in the adhesion to... Read More about In Silico Selection and In Vitro Evaluation of New Molecules That Inhibit the Adhesion of Streptococcus mutants through Antigen I/II.

Production of Mannosylerythritol Lipids (MELs) to be Used as Antimicrobial Agents Against S. aureus ATCC 6538 (2020)
Journal Article
Ceresa, C., Hutton, S., Lajarin-Cuesta, M., Heaton, R., Hargreaves, I., Fracchia, L., & de Rienzo, M. (2020). Production of Mannosylerythritol Lipids (MELs) to be Used as Antimicrobial Agents Against S. aureus ATCC 6538. Current Microbiology, 77, 1373-1380. https://doi.org/10.1007/s00284-020-01927-2

Antimicrobial resistance (AMR) is a current major health issue, both for the high rates of resistance observed in bacteria that cause common infections and for the complexity of the consequences of AMR. Pathogens like Staphylococcus aureus, Pseudomon... Read More about Production of Mannosylerythritol Lipids (MELs) to be Used as Antimicrobial Agents Against S. aureus ATCC 6538.

Production of Mannosylerythritol Lipids (MELs) to be Used as Antimicrobial Agents Against S. aureus ATCC 6538 (2020)
Journal Article
Ceresa, C., Hutton, S., Lujarin-Cuesta, M., Heaton, R., Hargreaves, I., Fracchia, L., & de Rienzo, M. (2020). Production of Mannosylerythritol Lipids (MELs) to be Used as Antimicrobial Agents Against S. aureus ATCC 6538. Current Microbiology, 77, 1373-1380. https://doi.org/10.1007/s00284-020-01927-2

Antimicrobial resistance (AMR) is a current major health issue, both for the high rates of resistance observed in bacteria that cause common infections and for the complexity of the consequences of AMR. Pathogens like Staphylococcus aureus, Pseudomon... Read More about Production of Mannosylerythritol Lipids (MELs) to be Used as Antimicrobial Agents Against S. aureus ATCC 6538.

The effect of sophorolipids against microbial biofilms on medical-grade silicone (2020)
Journal Article
Ceresa, C., Fracchia, L., Williams, M., Banat, I., & Diaz de Rienzo, M. (2020). The effect of sophorolipids against microbial biofilms on medical-grade silicone. Journal of Biotechnology, 309, 34-43. https://doi.org/10.1016/j.jbiotec.2019.12.019

Recent medical strategies rely on the search for effective antimicrobials as surface coatings to prevent and treat infections in humans and animals. Biosurfactants have recently been shown to have properties as antiadhesive and antibiofilm agents. So... Read More about The effect of sophorolipids against microbial biofilms on medical-grade silicone.

Use of electrical resistance tomography (ERT) for the detection of biofilm disruption mediated by biosurfactants (2018)
Journal Article
de Rienzo, M., Hou, R., & Martin, P. (2018). Use of electrical resistance tomography (ERT) for the detection of biofilm disruption mediated by biosurfactants. #Journal not on list, 110, 1-5. https://doi.org/10.1016/j.fbp.2018.03.006

Inline measurement of biofilms could provide a valuable technology for water, food and bioprocessing industries to improve quality control and avoid contamination. This study presents the first use of electrical resistance tomography (ERT) to detect... Read More about Use of electrical resistance tomography (ERT) for the detection of biofilm disruption mediated by biosurfactants.

Influence of microbial adherence on corrosion of UNS 1008 carbon steel and hybrid nano-structured coatings (2018)
Journal Article
De Rienzo, M., Aguirre Ramirez, M., Martin, P. J., & Galicia Garcia, M. (2018). Influence of microbial adherence on corrosion of UNS 1008 carbon steel and hybrid nano-structured coatings. Anti-Corrosion Methods and Materials, 65(2), 152-157. https://doi.org/10.1108/ACMM-05-2017-1795

Purpose Microbes that are able to grow on different surfaces can cause the deterioration of the underlying layers because of their metabolic activity. The purpose of this study is report the ability of fungi-bacteria consortium (FBC) in anaerobic me... Read More about Influence of microbial adherence on corrosion of UNS 1008 carbon steel and hybrid nano-structured coatings.

Diffusive Release of Photosensitizing Agents (PS) from Novel PVA-Borate Semi-Solid Drug Carriers Through In Vitro Oral Streptococcus mutans Biofilm (2016)
Journal Article
Diaz De Rienzo, M., Williams, G., Banat, I., Callan, J., Faheem, A., Martin, P., & McCarron, P. (2016). Diffusive Release of Photosensitizing Agents (PS) from Novel PVA-Borate Semi-Solid Drug Carriers Through In Vitro Oral Streptococcus mutans Biofilm. #Journal not on list, 5(4),

Background: Streptococcus mutans, one of the agent of human dental caries, is particularly effective at forming biofilms on the hard tissues of the human oral cavity; the purpose of this study was to investigate and quantify the diffusional release o... Read More about Diffusive Release of Photosensitizing Agents (PS) from Novel PVA-Borate Semi-Solid Drug Carriers Through In Vitro Oral Streptococcus mutans Biofilm.

Comparative study of the production of rhamnolipid biosurfactants by B. thailandensis E264 and P. aeruginosa ATCC 9027 using foam fractionation (2016)
Journal Article
de Rienzo, M., Kalalanathan, I., & Martin, P. (2016). Comparative study of the production of rhamnolipid biosurfactants by B. thailandensis E264 and P. aeruginosa ATCC 9027 using foam fractionation. Process Biochemistry, 51(7), 820-827. https://doi.org/10.1016/j.procbio.2016.04.007

Biosurfactants are surface-active agents that are produced by a variety of microorganisms including yeasts, filamentous fungi and bacteria. In this work, we report on the ability of Pseudomonas aeruginosa ATCC 9027 and Burkholderia thailandensis E264... Read More about Comparative study of the production of rhamnolipid biosurfactants by B. thailandensis E264 and P. aeruginosa ATCC 9027 using foam fractionation.

Effect of Mono and Di-rhamnolipids on Biofilms Pre-formed by Bacillus subtilis BBK006. (2016)
Journal Article
Rienzo MA, D., & PJ, M. (2016). Effect of Mono and Di-rhamnolipids on Biofilms Pre-formed by Bacillus subtilis BBK006. Current Microbiology, 73, 183-189. https://doi.org/10.1007/s00284-016-1046-4

Different microbial inhibition strategies based on the planktonic bacterial physiology have been known to have limited efficacy on the growth of biofilms communities. This problem can be exacerbated by the emergence of increasingly resistant clinical... Read More about Effect of Mono and Di-rhamnolipids on Biofilms Pre-formed by Bacillus subtilis BBK006..

Pseudomonas aeruginosa biofilm disruption using microbial surfactants (2016)
Journal Article
De Rienzo MA, D., PS, S., R, M., & IM, B. (2016). Pseudomonas aeruginosa biofilm disruption using microbial surfactants. Journal of Applied Microbiology, 120(4), 868-876. https://doi.org/10.1111/jam.13049

Aims To establish the ability of the rhamnolipids biosurfactants from Pseudomonas aeruginosa, in the presence and absence of caprylic acid and ascorbic acid, to disrupt bacterial biofilms, compared with the anionic alkyl sulphate surfactant Sodium d... Read More about Pseudomonas aeruginosa biofilm disruption using microbial surfactants.

Effect of biosurfactants on Pseudomonas aeruginosa and Staphylococcus aureus biofilms in a BioFlux channel (2016)
Journal Article
De Rienzo, M., PS, S., R, M., & IM, B. (2016). Effect of biosurfactants on Pseudomonas aeruginosa and Staphylococcus aureus biofilms in a BioFlux channel. Applied Microbiology and Biotechnology, 100, 5773-5779. https://doi.org/10.1007/s00253-016-7310-5

Recent studies have indicated that biosurfactants play a role both in maintaining channels between multicellular structures in biofilms and in dispersal of cells from biofilms. A combination of caprylic acid (0.01 % v/v) together with rhamnolipids (0... Read More about Effect of biosurfactants on Pseudomonas aeruginosa and Staphylococcus aureus biofilms in a BioFlux channel.

Antibacterial properties of biosurfactants against selected Gram-positive and -negative bacteria (2016)
Journal Article
De Rienzo MA, D., P, S., R, M., & IM, B. (2016). Antibacterial properties of biosurfactants against selected Gram-positive and -negative bacteria. FEMS Microbiology Letters, 363(2), https://doi.org/10.1093/femsle/fnv224

The antibacterial properties and ability to disrupt biofilms of biosurfactants (rhamnolipids, sophorolipids) and sodium dodecyl sulphate (SDS) in the presence and absence of selected organic acids were investigated. Pseudomonas aeruginosa PAO1 was in... Read More about Antibacterial properties of biosurfactants against selected Gram-positive and -negative bacteria.

Sophorolipid biosurfactants: Possible uses as antibacterial and antibiofilm agent (2015)
Journal Article
De Rienzo MA, D., IM, B., B, D., J, W., & PJ, M. (2015). Sophorolipid biosurfactants: Possible uses as antibacterial and antibiofilm agent. New Biotechnology, 32(6), 720-726. https://doi.org/10.1016/j.nbt.2015.02.009

Biosurfactants are amphipathic, surface-active molecules of microbial origin which accumulate at interfaces reducing interfacial tension and leading to the formation of aggregated micellular structures in solution. Some biosurfactants have been repor... Read More about Sophorolipid biosurfactants: Possible uses as antibacterial and antibiofilm agent.

Microbial biofilms: biosurfactants as antibiofilm agents (2014)
Journal Article
IM, B., Rienzo MA, D., & GA, Q. (2014). Microbial biofilms: biosurfactants as antibiofilm agents. Applied Microbiology and Biotechnology, 98, 9915–9929. https://doi.org/10.1007/s00253-014-6169-6

Current microbial inhibition strategies based on planktonic bacterial physiology have been known to have limited efficacy on the growth of biofilm communities. This problem can be exacerbated by the emergence of increasingly resistant clinical strain... Read More about Microbial biofilms: biosurfactants as antibiofilm agents.

Metal removal from contaminated soils trough bioleaching with oxidizing bacteria and washing with rhamnolipid bio surfactants. (2014)
Journal Article
Rienzo, M. A., Urdaneta De Ranson, I., Dorta, B., Banat, I. M., Blazquez, M. L., Gonzalez, F., …Ballester, A. (2014). Metal removal from contaminated soils trough bioleaching with oxidizing bacteria and washing with rhamnolipid bio surfactants. Soil and Sediment Contamination, 24(1), 16-29. https://doi.org/10.1080/15320383.2014.907239

The use of surfactants as a method for solubilization and removal of heavy metal contamination from soil has been reported before. Biosurfactants produced by some microorganisms are able to modify the surface of various metals and aggregate on interp... Read More about Metal removal from contaminated soils trough bioleaching with oxidizing bacteria and washing with rhamnolipid bio surfactants..

Bio surfactant Production in Aerobic and Anaerobic Conditions by Different Species of the Genus Pseudomonas (2014)
Journal Article
Diaz De Rienzo, M., Urdaneta, I., & Dorta, B. (2014). Bio surfactant Production in Aerobic and Anaerobic Conditions by Different Species of the Genus Pseudomonas. Journal of Life Sciences, 8(3), 201-210

In a time where surface active agents are capable of reducing the energy of the bonds between water molecules by interacting with them to reduce surface tension, it would be unwise not to be able to generate these in masses. Different Pseudomonas spe... Read More about Bio surfactant Production in Aerobic and Anaerobic Conditions by Different Species of the Genus Pseudomonas.

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