Monosaccharides, preparation from bacterial

Preparation of Monosaccharides and Oligosaccharides from Bacterial Polysaccharides... 

All bacteria which have been adequately studied have proved to possess polysaccharides, and, in most instances, these are much more complex than the D-glucose polymers which have attracted the lion s share of attention from carbohydrate chemists. More than twenty different monosaccharide units are known to occur in bacterial polysaccharides, and five or more different kinds of unit may be present in the same polymer. Considering that some of the finer structural details of starch and glycogen remain to be elucidated, it is not surprising that little of the structure of the complex heteropolysaccharides has yet been unravelled. There have also been difficulties in preparing sufficient purified material for chemical work and in... 

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