Polysaccharides fermenters

Gelissen, I. C., and M. A. Eastwood. Taurocholic acid adsorption during non-starch polysaccharide fermentation an in vitro study. Brit J Nutr 1995 74(2) 221-228. 

Two types of viscous fermentations exist (a) Mycelial fermentations viscosity is due to microbial network structure dispersed in a continuous phase, (b) Polysaccharide fermentation viscosity is due to polymer in an aqueous phase-homogeneous viscous liquid. 

Newtonian fluids such as water, and most bacterial and yeast fermentation broths. Non-Newtonian media such as polysaccharide fermentations and broths of Streptomyces, Aspergilli, and Penicillia. 

From these examples, it can be seen that studies of the effect of diet on the intestinal flora must take into account the availability of a variety of polysaccharides. Information about in vitro fermentation of different polysaccharides by colon bacteria can help us to make predictions about what sorts of carbohydrate may be utilizable in vivo, but this information raises still other questions. To see this, consider some of the results of surveys of polysaccharide fermentation by numerically predominant species of colon bacteria (, 10). Some of these results are summarized in Table 1. One thing that is immediately apparent from Table 1 is that the most versatile fermenters of polysaccharides are Bacteroides species. Moreover, many of these species can ferment several types of polysaccharides. 

Noel, G., L. Choplin, A. Lajoie, C. Lacroix, and A. LeDuy, A Study of the Evolution of Viscoelastic Properties of Microbial Polysaccharide Fermentation Broth, in Advances in Rheology, Mena, B., Garcfa-Rejon, A., and Rangel-Nafaile, C. (eds.), Mexico, vol. 4, p. 189, (1984). 

Factors Affecting the Biopolymer Quality in Xanthan and Other Polysaccharide Fermentations... 

In other polysaccharide fermentations such as alginate, curdlan, and pullulan gums, the effects of agitation speed and dissolved oxygen are more complex. Pena... 

Margaritis, A. and Zajic, J.E. (1978) Biotechnology review mixing mass transfer and scale up of polysaccharide fermentations. Biotech. Bioeng., 20, 939-1001. 

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