Microbial polysaccharides
Many microorganisms produce polysaccharides that either remain attached to the cell wall (capsular polysaccharides) or are secreted into the extracellular fluid (exopolysaccharides).
Some examples of microbial polysaccharides include
a)xanthan gum,
b) gellan gum,
c) curdlan,
d) pullulan etc.