The effect of extracellular polymeric substances on the adhesion of bacteria to clay minerals and goethite

The effect of extracellular polymeric substances on the adhesion of bacteria to clay minerals and goethite

The functions of extracellular polymeric substances (EPS) during the adhesion of Bacillus subtilis to kaolinite, montmorillonite, and goethite were examined by a direct comparison of the adhesion behaviors of native and EPS-free cells via cation exchange resin (CER) treatment using batch experiments...

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Veröffentlicht in:Chemical geology 2013-12, Vol.360-361, p.118-125
Hauptverfasser: Hong, Zhineng, Chen, Wenli, Rong, Xingmin, Cai, Peng, Dai, Ke, Huang, Qiaoyun
Format: Artikel
Sprache:eng
Schlagworte:
Adhesion
Adhesive bonding
Bacillus subtilis
Bacteria
Clay minerals
EPS
Extracellular polymeric substances
Mass ratios
Minerals
Soil mineral
Spectra
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Zusammenfassung:The functions of extracellular polymeric substances (EPS) during the adhesion of Bacillus subtilis to kaolinite, montmorillonite, and goethite were examined by a direct comparison of the adhesion behaviors of native and EPS-free cells via cation exchange resin (CER) treatment using batch experiments, attenuated total reflectance Fourier-transform infrared (ATR-FTIR) spectroscopy, and potentiometric titration. The EPS removal had no apparent influence on bacterial adhesion when the wet bacteria/mineral mass ratio was low (
ISSN:0009-2541
1872-6836
DOI:10.1016/j.chemgeo.2013.10.014