In biofilms, flocs and similar multispecies microbial communities, exopolysaccharides (EPSs) are always present, frequently as the major component other than water. The EPSs vary widely in their composition, structure and properties and thus it is impossible to generalise about their contribution to biofilm or floc structure. Relatively few of the polymers obtained from biofilms and flocs have been adequately purified and analysed but such evidence as is so far available suggests that the polysaccharides closely resemble those synthesised by the corresponding planktonic bacteria. From a knowledge of the physical properties of these, it is now possible to present a reasonably accurate picture of some of the factors which they may contribute to the structure and stability of complex aggregates of micro-organisms in biofilms and flocs.
Skip Nav Destination
Research Article| March 01 2001
Exopolysaccharides in biofilms, flocs and related structures
I. W. Sutherland
1Institute of Cell and Molecular Biology, Division of Biology, Edinburgh University, Edinburgh EH9 3JH, UK
Search for other works by this author on:
Water Sci Technol (2001) 43 (6): 77–86.
I. W. Sutherland; Exopolysaccharides in biofilms, flocs and related structures. Water Sci Technol 1 March 2001; 43 (6): 77–86. doi: https://doi.org/10.2166/wst.2001.0345
Download citation file:
Don't already have an account? Register
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.