Results 121 to 130 of about 3,684 (177)

Purification and characterization of the biosurfactant rhamnolipid

Chinese Journal of Chromatography, 2014
Biosurfactant rhamnolipid is a metabolic intermediate produced by microorganisms under a certain condition. There are the polar hydrophilic group and the non-polar hydrophobic group in rhamnolipid molecule which always exhibits high surface or interfacial activity.
Yang, Liu, Hua, Zhong, Zhifeng, Liu, Yongbing, Jiang, Fei, Tan, Guangming, Zeng, Mingyong, Lai, Yibin, He   +7 more
openaire   +2 more sources

Complexation of Cadmium by a Rhamnolipid Biosurfactant

Environmental Science & Technology, 1994
The potential of microbially-produced surfactants (biosurfactants) to complex heavy metals was investigated in this study. Batch solution studies using a model metal, cadmium, and an anionic monorhamnolipid biosurfactant produced by Pseudomonas aeruginosa ATCC 9027 showed that complexation of the metal and biosurfactantwas rapid and stable and achieved
H, Tan, J T, Champion, J F, Artiola, M L, Brusseau, R M, Miller   +4 more
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Production of Rhamnolipids

2018
Presently, more concern is being paid towards compilation of various strategies and conditions for rhamnolipids biosurfactant production. The present chapter emphasizes the various strategies and conditions for biosurfactant production including rhamnolipids which are the major class of biosurfactants.
Rajesh Kumar, Amar Jyoti Das
openaire   +1 more source

The true methodology for rhamnolipid: Various solvents affect rhamnolipid characteristics

European Journal of Lipid Science and Technology, 2017
Rhamnolipid, among the most effective biosurfactants, is a glycolipid‐type biosurfactant primarily produced by Pseudomonas aeruginosa. In this study, rhamnolipid production was carried out using a strain of P. aeruginosa and it is aimed to compare rhamnolipid biopolymers obtained from various extraction methods using glycine (RG), hydrochloric acid (RH)
Hakan Çakmak, Gökhan Güngörmedi, Gökhan Dikmen, Pınar Aytar Çelik, Ahmet Çabuk   +4 more
openaire   +1 more source

Rhamnolipids—Next generation surfactants?

Journal of Biotechnology, 2012
The demand for bio-based processes and materials in the petrochemical industry has significantly increased during the last decade because of the expected running out of petroleum. This trend can be ascribed to three main causes: (1) the increased use of renewable resources for chemical synthesis of already established product classes, (2) the ...
Müller, Markus M., Kügler, Johannes H., Henkel, Marius, Gerlitzki, Melanie, Hörmann, Barbara, Pöhnlein, Martin, Syldatk, Christoph, Hausmann, Rudolf   +7 more
openaire   +3 more sources

Formulating Alcohol‐Free Microemulsions Using Rhamnolipid Biosurfactant and Rhamnolipid Mixtures

Journal of Surfactants and Detergents, 2008
AbstractThis research focused on developing alcohol‐free biosurfactant‐based microemulsions. Rhamnolipid‐based mixtures were found to have double the solubilization parameter as compared to sodium bis(2‐ethyl) dihexyl sulfosuccinate/sodium dihexyl sulfosuccinate/sodium mono‐ and dimethyl naphthalene sulfonate at the same total molar concentration.
Thu T. Nguyen, David A. Sabatini
openaire   +1 more source

Biosynthesis of Rhamnolipids

2004
Pseudomonas aeruginosa is an environmental bacterium that can be isolated from many different habitats including water, soil and plants, but it is also an opportunistic human pathogen causing serious nosocomial infections8. Under specific environmental conditions this bacterium produces and secretes rhamnose-containing glycolipid biosurfactants.
openaire   +1 more source

Rhamnolipid biosurfactant behavior in solutions

Journal of Biomaterials Science, Polymer Edition, 2004
The solution behavior of rhamnolipid biosurfactant that is determined by its surface thermodynamic properties often plays a central role in determining and controlling its performance in practical applications. In this study, rhamnolipid molecules exhibited a predominant hydrophilic surface, contributed by hydrophilic monomer head groups.
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Environmental Applications of Rhamnolipids

2018
Environmental pollution due to industrial pollutant has become a serious problem of recent time. Hence, their management is of immense concern. Various technologies have been put forward in the last few decades and are being employed but most of them are not economically feasible while some result in incomplete removal of pollutants or in formation of ...
Rajesh Kumar, Amar Jyoti Das
openaire   +1 more source

Rhamnolipids

2013
Fereshteh Arab, Catherine Mulligan
openaire   +1 more source