Rikke Palmgren

TL;DR: In this article, the extraction of water soluble extracellular polymeric substances (EPS) from activated sludge was investigated, which consisted mainly of protein but also humic compounds, carbohydrates, uronic acids and DNA.

TL;DR: A conceptual biofilm model taking into account microbial physiology with regard to production of extracellular polymers and their transformation within the biofilm is suggested and can be helpful in structuring the design and evaluation of biofilm experiments focusing on biofilm structure and properties.

TL;DR: More deoxyribonucleic acid (DNA) was measured than could be accounted for by cell counts in activated sludge flocs, a mixed culture of sludge bacteria, and a pure culture of Pseudomonas putida, which means that estimations of cell number by measurement and correlation with DNA content will result in an overestimation of the cell number or biomass by up to a factor 10.

TL;DR: There are many difficulties in measuring cell surface hydrophobicity since other cell surface properties, such as surface charge, influence the measurement methods, and the MATH test was employed to establish how assay conditions influenced the results.