Biofouling control by quorum sensing inhibition and its dependence on membrane surface

Mijin Kim, Sangyoup Lee, Hee Deung Park, Suing Il Choi, Seungkwan Hong

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Biofouling control by quorum sensing (QS) inhibition and the influence of membrane surface characteristics on biofilm formation and QS inhibition were investigated. Pseudomonas putida isolated from the bio-fouled reverse osmosis (RO) membranes in a real plant was used. Acylase was chosen as a model QS inhibitor. Bacteria on the membrane coupons were quantified with the heterotrophic plate count method. Cell distribution was imaged by a confocal laser scanning microscope. Results showed that biofilm formation on the membrane was reduced by acylase as it inhibits the activity of N-acylhomoserine lactone (AHL) which is a signal molecule of QS. It was also shown that membrane surface characteristics were influential factors affecting bacterial adhesion, biofilm formation, and QS inhibition.

Original languageEnglish
Pages (from-to)1424-1430
Number of pages7
JournalWater Science and Technology
Volume66
Issue number7
DOIs
Publication statusPublished - 2012

Keywords

  • Acylase
  • Biofouling
  • Pseudomonas putida
  • Quorum sensing
  • Reverse osmosis (RO) membrane

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

Fingerprint Dive into the research topics of 'Biofouling control by quorum sensing inhibition and its dependence on membrane surface'. Together they form a unique fingerprint.

Cite this