Prevotella ruminicola

On pure culture, the growth of Prevotella ruminicola was stimulated by the addition of yucca extract (Wallace et al. 1994). In the in vitro fermentation using cattle rumen, a significant increase of Prevotella ruminicola due to the addition of S. rarak saponin extract was also reported (Suharti et al. 2010) and this result confirmed a previous qualitative analysis by DGGE (Suharti 2010). 

There is limited information on the effect of saponins on peptide and amino acids metabolism in the rumen. Bacteria are responsible for most peptide degradation within the rumen and among them. Gram-negative bacteria Prevotella ruminicola appears to be the most important peptidolytic bacteria (Broderick et al. 1991). 

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