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Pseudomonas aeruginosa rhamnolipids: biosynthesis and potential ..

Pseudomonas aeruginosa rhamnolipids: biosynthesis and potential applications

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Production of Rhamnolipids by Pseudomonas chlororaphis…


The role of polyhydroxyalkanoate biosynthesis by Pseudomonas aeruginosa in rhamnolipid and alginate production as well as stress tolerance and biofilm .

Pseudomonas aeruginosa PAO1 was found to exhibit several remarkable physiological . The amount of rhamnolipid present in the cell-free supernatant was .

ReviewPseudomonas aeruginosa rhamnolipids: biosynthesis and potential applications

Rhamnolipids exhibit several promising industrial applications (, , , ). They are powerful natural emulsifiers capable of reducing the surface tension of water from roughly 76 mN/m to 25 to 30 mN/m (). This biosurfactant activity of rhamnolipids makes them excellent candidates for assisting in the breakdown and removal of oil spills. Rhamnolipids also demonstrate antibacterial and antifungal activities, suggesting possible roles in the medical and agricultural fields (). Since this biosurfactant is derived from a natural source and in a pure form has low toxicity levels, rhamnolipids are an attractive alternative to synthetic compounds. However, since rhamnolipids are produced by P. aeruginosa, a pathogen of humans, animals, and plants, there are safety issues that would have to be addressed before rhamnolipids produced in this manner would be considered safe. Since addressing these safety concerns could prove to be cost prohibitive, the effort to commercialize rhamnolipids would be helped considerably if the rhamnolipids could be produced by a nonpathogenic host. Attempts have been made to clone the necessary genes for rhamnolipid production into a nonpathogenic host with some limited success (). Also, recently a strain of Pseudomonas putida was found to be naturally capable of rhamnolipid production (). Although this bacterium belonging to the Pseudomonas species is generally considered harmless, there exists some documentation suggesting a limited pathogenic potential (, ). In this work we describe the discovery of a bacterial strain belonging to the nonpathogenic bacterial species P. chlororaphis that is capable of naturally producing rhamnolipids under conditions different from any previously described bacterial production method.

reported in Pseudomonas aeruginosa grown with ..

(2000) Pseudomonas aeruginosa rhamnolipids: biosynthesis and potential applications.


The role of polyhydroxyalkanoate biosynthesis by Pseudomonas aeruginosa in rhamnolipid and alginate production as well as stress tolerance and biofilm .

N2 - Pseudomonas aeruginosa produces and secretes rhamnose-containing glycolipid biosurfactants called rhamnolipids. This review describes rhamnolipid biosynthesis and potential industrial and environmental applications of rhamnolipids. Rhamnolipid production is dependent on central metabolic pathways, such as fatty acid synthesis and dTDP-activated sugars, as well as on enzymes participating in the production of the exopolysaccharide alginate. Synthesis of these surfactants is regulated by a very complex genetic regulatory system that also controls different P. aeruginosa virulence-associated traits. Rhamnolipids have several potential industrial and environmental applications including the production of fine chemicals, the characterization of surfaces and surface coatings, as additives for environmental remediation, and as a biological control agent. Realization of this wide variety of applications requires economical commercial-scale production of rhamnolipids.

biosynthesis and potential applications.

Pseudomonas aeruginosa rhamnolipids: biosynthesis and potential applications.

Pseudomonas aeruginosa produces and secretes rhamnose-containing glycolipid biosurfactants called rhamnolipids. This review describes rhamnolipid biosynthesis and potential industrial and environmental applications of rhamnolipids. Rhamnolipid production is dependent on central metabolic pathways, such as fatty acid synthesis and dTDP-activated sugars, as well as on enzymes participating in the production of the exopolysaccharide alginate. Synthesis of these surfactants is regulated by a very complex genetic regulatory system that also controls different P. aeruginosa virulence-associated traits. Rhamnolipids have several potential industrial and environmental applications including the production of fine chemicals, the characterization of surfaces and surface coatings, as additives for environmental remediation, and as a biological control agent. Realization of this wide variety of applications requires economical commercial-scale production of rhamnolipids.

Pseudomonas aeruginosa produces glycolipidic surface-active molecules (rhamnolipids) which have potential biotechnological applications. Rhamnolipids are produced by P. aeruginosa in a concerted manner with different virulence-associated traits. Here, we review the rhamnolipids biosynthetic pathway, showing that it has metabolic links with numerous bacterial products such as alginate, lipopolysaccharide, polyhydroxyalkanoates, and 4-hydroxy-2-alkylquinolines (HAQs). We also discuss the factors controlling the production of rhamnolipids and the proposed roles this biosurfactant plays in P. aeruginosa lifestyle.

(2000) Pseudomonas aeruginosa Rhamnolipids Biosynthesis and Potential Applications
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  • aeruginosa rhamnolipids: Biosynthesis ..

    22/04/2015 · Pseudomonas aeruginosa rhamnolipids: biosynthesis and potential applications

  • Maier, R.M.; Soberón-Chávez, G

    Pseudomonas aeruginosa rhamnolipids: biosynthesis and potential applications…

  • 20/07/2010 · Abstract

    11/02/2017 · 1

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Appl Environ Microbiol | National Center For …

Pseudomonas aeruginosa produces and secretes rhamnose-containing glycolipid biosurfactants called rhamnolipids. This review describes rhamnolipid biosynthesis and potential industrial and environmental applications of rhamnolipids. Rhamnolipid production is dependent on central metabolic pathways, such as fatty acid synthesis and dTDP-activated sugars, as well as on enzymes participating in the production of the exopolysaccharide alginate. Synthesis of these surfactants is regulated by a very complex genetic regulatory system that also controls different P. aeruginosa virulence-associated traits. Rhamnolipids have several potential industrial and environmental applications including the production of fine chemicals, the characterization of surfaces and surface coatings, as additives for environmental remediation, and as a biological control agent. Realization of this wide variety of applications requires economical commercial-scale production of rhamnolipids.

Pseudomonas aeruginosa Rhamnolipids: Biosynthesis ..


Pseudomonas aeruginosa rhamnolipids: biosynthesis and potential applications. Received: 4 February 2000 / Received revision: 9 June 2000 / Accepted: 9 .

Formulation and Potential Applications.

AB - Pseudomonas aeruginosa produces and secretes rhamnose-containing glycolipid biosurfactants called rhamnolipids. This review describes rhamnolipid biosynthesis and potential industrial and environmental applications of rhamnolipids. Rhamnolipid production is dependent on central metabolic pathways, such as fatty acid synthesis and dTDP-activated sugars, as well as on enzymes participating in the production of the exopolysaccharide alginate. Synthesis of these surfactants is regulated by a very complex genetic regulatory system that also controls different P. aeruginosa virulence-associated traits. Rhamnolipids have several potential industrial and environmental applications including the production of fine chemicals, the characterization of surfaces and surface coatings, as additives for environmental remediation, and as a biological control agent. Realization of this wide variety of applications requires economical commercial-scale production of rhamnolipids.

Agriculture and Food Applications of Rhamnolipids and …


Pseudomonas aeruginosa rhamnolipids: biosynthesis and potential applications. Received: 4 February 2000 / Received revision: 9 June 2000 / Accepted: 9 .

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