Peptone from Casein (Tryptone), pancreatic, free from sulfonamide antagonists
Cat. No. 1.02239.0500
(500 g)
This peptone is obtained by pancreatic
degradation of casein and is used to prepare media for the cultivation of fastidious microorganisms.
It contains negligible amounts of sulfonamide antagonists (p-aminobenzoic acid) and is thus utilized
especially for the preparation of culture media used for testing the sensitivity of infectious
microorganisms towards sulfonamides.
A BSE-free certificate is available upon
request.
Analysis
Total nitrogen (ex N; calc. on dried
substance): 13.8-15.8%; amino nitrogen (as N): 4.7-6.7%; sulfated ash (800°C):
£5%; loss on drying (105°C; 4 h): £6%;
pH (5% solution): 5.0-6.0; total nitrogen (as N): 13.8-15.8%.
