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- W3048356195 abstract "To improve the start-up speed and efficiency ofbioreactors, biofilm technology is sometimes used. This technology uses varioustypes of materials to facilitate the adhesion of microorganisms. In this study,the surface characteristics of inertsubstrates and substrates after olive oil-mill wastewater (OMWW) conditioning film were evaluated to understand the impact of OMWW on adhesionas well as the most suitable material to optimize bacterial adhesion. Three commonsubstrates made of different polymers were tested for bacterial adhesion beforeand after treatment with OMWW: PP (polypropylene), PET (Polyethyleneterephthalate), and PVC (polyvinyl chloride). The surfaces’physicochemical characteristics were studied by measuring the contact anglefor the studied bacteria strain and the supports, before and after treatmentwith OMWW. Results of initial adhesion tests for untreated and treated supportsshowed differences in how bacterial cells adhered to substrates. Before treatmentwith OMWW, PVC and then PP showed a significant adhesion capacity, double thatof PET [PVC: 1.58 × 105 CFU/cm2, PP: 1.48 × 105 CFU/cm2 and PET: 0.72 × 105 CFU/cm2]. After treatment with OMWW, initialbacterial adhesion increased by 106 (from 105 CFU/cm2 for untreated supports to 1011 CFU/cm2 for treatedsupports), and PET followed by PP demonstrated the highest adhesion capacity, 2and 1.7 times more than PVC, respectively [PET: 1.39 × 1011 CFU/cm2, PP: 1.15 × 1011 CFU/cm2 and PVC: 0.67 × 1011 CFU/cm2]. OMWW conditioning film affects the physicochemicalcharacteristics of plastic supports, especially the donor electron character,and improves the initial adhesion of bacteria to substrates (105 to1011 CFU/cm2). Therefore, surfaces’ physicochemicalcharacteristics were important in the initial adhesion of the bacteria onto thesupport before and after treatment." @default.
- W3048356195 created "2020-08-13" @default.
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- W3048356195 date "2020-01-01" @default.
- W3048356195 modified "2023-09-26" @default.
- W3048356195 title "Study of Initial Adhesion of a Bacterium to Different Support Materials before and after Conditioning Film of Olive Oil-Mill Wastewater" @default.
- W3048356195 doi "https://doi.org/10.4236/abb.2020.118027" @default.
- W3048356195 hasPublicationYear "2020" @default.
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