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Muhammad Faisal Siddiqui,오현석,Miles Rzechowicz,Harvey Winters,Tzyy Haur Chong,Anthony G. Fane 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.30 No.-
Exploring novel biological strategies to mitigate membrane biofouling is of great worth in order to allowsustainable performance of membrane systems for wastewater treatment. Here, the optimal biofilmprevention potential of three phenolic compounds, viz. tannic acid (TA), ellagic acid (EA), andepigallocatechin (EG) on polystyrene microtiter plate, glass surface, and reverse osmosis (RO) membranecoupons was investigated using Pseudomonas aeruginosa PAO1 and RO multispecies community. Biofilmformation was qualitatively and quantitatively assessed by crystal voilet assay and confocal microscopy[bacterial cells and the components of extracellular polymeric substances (EPS)]. The three phenoliccompounds had different optimal concentrations (TA 100 mg/L, EA 200 mg/L, and EG 200 mg/L) forbiofilm control. Biofilm control was correlated with a reduction in EPS. The three phenolic compoundshad no dispersal effect on 24 h-old PAO1 biofilms. Phenolic compounds also reduced multispeciesbiofilm formation of RO community. The data present strong evidence for the application of thesephenolic compounds for the prevention of biofouling in an industrial setting.