Results 11 to 20 of about 401,844 (215)

Rhamnolipid Micellization and Adsorption Properties

International Journal of Molecular Sciences, 2022
Biosurfactants are naturally occurring amphiphiles that are being actively pursued as alternatives to synthetic surfactants in cleaning, personal care, and cosmetic products. On the basis of their ability to mobilize and disperse hydrocarbons, biosurfactants are also involved in the bioremediation of oil spills.
Yi Zhang, Tess L. Placek, Ruksana Jahan, Paschalis Alexandridis, Marina Tsianou   +4 more
openaire   +3 more sources

Natural Lactone-Based Quorum Sensing Inhibitors Attenuate Virulence in Pseudomonas aeruginosa. [PDF]

Chem Biodivers
Targeting bacterial communication, lab‐generated lactones (Lx) inhibited biofilm formation and eliminated mature biofilms within 24–48 h. Lx treatment also suppressed pyocyanin and rhamnolipid production while downregulating rhlR expression, highlighting their promise as potent quorum‐sensing (QS) inhibitors and next‐generation antibiofilm therapeutics.
Chaturvedi S, Sharma A, Singh T, Das BB, Dutta T, Khare SK.   +5 more
europepmc   +2 more sources

Acetate as alternative carbon source for production of mono- and di-rhamnolipids in Pseudomonas putida KT2440 [PDF]

Microbial Cell Factories
Background The bacterium Pseudomonas putida KT2440 is used as a safe platform for rhamnolipid production via expression of the rhlABC genes, yielding mono- and di-rhamnolipid congeners.
Jakob Grether, Sarah Leibinger, Christina Ramke, Philipp Hubel, Lisa Weber, Jens Pfannstiel, Elvio Henrique Benatto Perino, Rudolf Hausmann   +7 more
doaj   +2 more sources

Raphani Semen Extract Targets the <i>las</i> Quorum Sensing System to Suppress <i>Pseudomonas aeruginosa</i> Biofilm and Signal Molecule Production. [PDF]

Food Sci Nutr
Raphani Semen extract (RSE) and its characteristic isothiocyanates sulforaphane (SFA) and sulforaphene (SFE) inhibit Pseudomonas aeruginosa biofilm formation and virulence by targeting the las quorum sensing system. RSE reduces the autoinducer 3‐oxo‐C12‐HSL, downregulates QS genes, and suppresses motility and virulence factors. SFA and SFE recapitulate
Xie J, Huang Y, Chen H, Xia Z, Wang L, Yu X, Yang J, Xu J, Fan H, Zheng J.   +9 more
europepmc   +2 more sources

Exploration on production of rhamnolipid biosurfactants using native Pseudomonas aeruginosa strains [PDF]

Journal of BioScience and Biotechnology, 2015
Biosurfactants are structurally diverse surface-active molecules, produced on living surfaces, mostly microbial cell surfaces or excreted extracellularly.
RAVISH BHAT, DAYAMANI K. J., SHREEKARA HATHWAR, RAJENDRA HEGDE, ANIL KUSH   +4 more
doaj   +1 more source

Uranium Leaching from Contaminated Soil Utilizing Rhamnolipid, EDTA, and Citric Acid [PDF]

Applied and Environmental Soil Science, 2014
Biosurfactants have recently gained attention as “green” agents that can be used to enhance the remediation of heavy metals and some organic matter in contaminated soils.
Sara Asselin, Jani C. Ingram
doaj   +2 more sources

Potential for Waste Reduction in Activated Sludge Systems: Evaluation of the Initial Conditions of a Rapid Test with Rhamnolipid Biosurfactant [PDF]

Journal of Sustainable Development of Energy, Water and Environment Systems, 2019
Adding chemicals that alter the microbial metabolism and reduce cell growth, without affecting organic matter removal, is an alternative technology to reduce sludge production. This study was intended to determine the best initial conditions to conduct a
Verônica M. F. Alexandre, Melissa L. E. Gutarra, Denise M. G. Freire, Magali C. Cammarota   +3 more
doaj   +2 more sources

Enhanced rhamnolipid production in Pseudomonas aeruginosa 8D by systematic genetic engineering [PDF]

Microbial Cell Factories
Rhamnolipids are environmentally friendly biosurfactants primarily produced by Pseudomonas aeruginosa. The complex and tightly regulated network imposes limitations on rhamnolipid biosynthesis. Therefore, rational genetic engineering of P.
Lixin Yuan, Ying Li, Xiaomin Li, Hailong Zhong, Yu Liu, Duan Lin, Mingxi Yang, Kexin Zhang, Yuanyuan Wang, Fulin Chen, Shiwei Wang, Weina Kong   +11 more
doaj   +2 more sources

Green synthesis of copper ions nanoparticles functionalized with rhamnolipid as potential antibacterial agent for pathogenic bacteria

Heliyon
Copper-based nanoparticles possess broad-spectrum antibacterial activity against both gram-positive and gram-negative bacteria, making them a cost-effective alternative to other metal-based nanoparticles.
Fera Faridatul Habibah, Wa Ode Sri Rizki, Atthar Luqman Ivansyah, Dea Indriani Astuti, Rukman Hertadi   +4 more
doaj   +2 more sources

Enhancing Phenanthrene Degradation by Burkholderia sp. FM-2 with Rhamnolipid: Mechanistic Insights from Cell Surface Properties and Transcriptomic Analysis [PDF]

Microorganisms
Various surfactants have been applied for the remediation of polycyclic aromatic hydrocarbon (PAH)-contaminated environments, but their roles in bioremediation remain controversial.
Ying Zhai, Jiajun Ma, Guohui Gao, Yumeng Cui, Ming Ying, Yihe Zhao, Agostinho Antunes, Lei Huang, Meitong Li   +8 more
doaj   +2 more sources