10.6084/m9.figshare.1342597.v2
Lan Hee Kim
Lan Hee
Kim
Yongmoon Jung
Yongmoon
Jung
Sung-Jo Kim
Sung-Jo
Kim
Chang-Min Kim
Chang-Min
Kim
Hye-Weon Yu
Hye-Weon
Yu
Hee-Deung Park
Hee-Deung
Park
In S. Kim
In S.
Kim
Use of rhamnolipid biosurfactant for membrane biofouling prevention and cleaning
Taylor & Francis Group
2015
seawater samples
water flux
membrane biofouling
cleaning Rhamnolipids
biofilm reduction
membrane biofouling prevention
biofilm detachment
surface hydrophobicity
growth rate
rhamnolipid biosurfactant
cell membrane
filtration system
Pseudomonas aeruginosa
cleaning agent
2015-04-15 19:25:06
Journal contribution
https://tandf.figshare.com/articles/journal_contribution/Use_of_rhamnolipid_biosurfactant_for_membrane_biofouling_prevention_and_cleaning/1342597
<div><p>Rhamnolipids were evaluated as biofouling reducing agents in this study. The permeability of the bacterial outer membrane was increased by rhamnolipids while the growth rate of <i>Pseudomonas aeruginosa</i> was not affected. The surface hydrophobicity was increased through the release of lipopolysaccharides and extracellular polymeric substances from the outer cell membrane. Rhamnolipids were evaluated as agents for the prevention and cleaning of biofilms. A high degree of biofilm detachment was observed when the rhamnolipids were used as a cleaning agent. In addition, effective biofilm reduction occurred when rhamnolipids were applied to various species of Gram-negative bacteria isolated from seawater samples. Biofilm reduction using rhamnolipids was comparable to commercially available surfactants. In addition, 20% of the water flux was increased after rhamnolipid treatment (300 μg ml<sup>−1</sup>, 6 h exposure time) in a dead-end filtration system. Rhamnolipids appear to have promise as biological agents for reducing membrane biofouling.</p></div>