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Control of membrane biofouling by 6-gingerol analogs: Quorum sensing inhibition

Authors
Ham, So-YoungKim, Han-ShinJang, YongsunSun, Peng-FeiPark, Jeong-HoonLee, John SeungwuByun, YoungjooPark, Hee-Deung
Issue Date
15-8월-2019
Publisher
ELSEVIER SCI LTD
Keywords
Biofouling; Quorum sensing; Quorum sensing inhibition; 6-Gingerol analogs; RO processes
Citation
FUEL, v.250, pp.79 - 87
Indexed
SCIE
SCOPUS
Journal Title
FUEL
Volume
250
Start Page
79
End Page
87
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/63509
DOI
10.1016/j.fuel.2019.03.145
ISSN
0016-2361
Abstract
Biofouling is a major problem in operating reverse osmosis (RO) processes. Although biocides such as chlorine are commonly used to reduce biofouling, their strong oxidative activity and toxicity negatively affect the operation of RO processes. 6-gingerol analogs, structural derivatives of the main component of ginger, are quorum sensing (QS) inhibitors. In this study, 6-gingerol analogs were applied to reduce biofouling in RO processes. The 6-gingerol analogs could inhibit Pseudomonas aeruginosa biofilm formation at low concentrations via QS disrupting activities without affecting the growth of the species. Notably, 6-gingerol analogs increased the permeate flux 36-52% in the operation of a model RO unit, with no damage to the membrane surface physically and chemically. Therefore, the results of this study clearly demonstrated that 6-gingerol analogs are effective biofilm inhibitors that could be used to mitigate biofouling in RO processes.
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Park, Hee Deung
공과대학 (건축사회환경공학부)
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