Peptone Y is a specially formulated enzymatic digest of casein, similar to Tryptone from gelatin, but used to supply higher growth rates when used in molecular biology media preparations such as YPD Broth & Agar.
Appearance: Light tan, homogenous, free flowing powder
Solubility: Clear, light amber, complete
pH (2%): 6.5-7.5
Ash: (same/less than)15%
Moisture: (same/less than)5.0%
Amino Nitrogen: (same/more than)4%
Total Nitrogen: (same/more than)10%
Undigested Proteins: Negative
Reducing Sugars: Negative
Proteoses: Trace positive to positive
Nitrites: Negative
Tryptophan: Trace positive to positive
Growth Supporting Properties:
Agar Formulation, Broth Formulation: Growth Test
Standard Plate Count: (same/less than)5000CFU/g
Molds/Yeasts: <100CFU/g
Coliforms: <10CFU/g
E. coli: Negative
Salmonella: Negative/25g
Typical Amino Acid Profile: Ala 2.8%, Arg 3.2%, Asp 6.7%, Cys 0.3%, Glu 18%, Gly 1.8%, His 2.4%, Ile 4.7%, Leu 7.7%, Lys 7.0%, Met 2.5%, Phe 4.1%, Pro 9.1%, Ser 5.1%, Thr 3.9%, Trp 1.0%, Tyr 1.3%, Val 6.0%
Certificate of Origin:
The raw animal product used in the manufacturing of Peptone Y is derived from casein, a milk product derived from bovine, originating in New Zealand where there have been no reported cases of bovine spongiform encephalopathy (BSE). Peptone Y is processed in Mexico. During processing of the product, a batch is heated to a minimum of 80 degrees C for 1 hour including a minimum of 5 minutes at 105 degrees C or greater and then dried at a minimum of 140 degrees C. The enzyme used in processing is porcine-derived from the USA.
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