What is proteose peptone (Difco)?

Andre Burnens BURNENS at VBI.unibe.ch
Thu Mar 7 03:46:40 EST 1996

Peptones are peptic digests of various proteins added as a nitrogen 
source to bacteriological media. They differ in their ability to support 
growth of fastidious microorganisms. If you would like to grow 
nonfastidious bacteria, probably any peptone from any producer will do. 
If your organisms are more demanding, stick to the exact type of peptone 
described in the literature - Difco alone produces three types of 
proteose peptone and their grrowth-sustaining properties are strictly 

Andre P. Burnens MD
Institute for Veterinary Bacteriology, University of Berne
Laenggass-Strasse 122, CH-3012 Berne, Switzerland
Tel. +41 31 631 24 85       Fax. +41 31 631 26 34

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