[BiO BB] Screening

[beena patel]

Hi
I am looking for a method for screening of Bifidobacterium longum from mixt 
culture of L. acidophilus anf S. thermophilus. I like  a conventional method 
for quantification of B. longum from the product.
I tried MRS, MRS+Cystein, MRS pH 5, MRS + Na thiosulphate,ST agar,MRS + 
salicin and Reinforced clostridum agar(RCA). I had some sucess with RCA agar 
but I still get interference of S. thermophilus in it.
I appriciate your help on above question.
Thank you
Beena Patel

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