95039

Casein Peptone

Tryptic digest of casein from bovine milk, ≤6.0% loss on drying, suitable for biotechnology and microbiology

• Synonym(s): Peptone from casein, Peptone from casein, tryptic digest, Tryptone enzymatic digest from casein
• CAS Number: 91079-40-2
• EC Number: 293-428-4
• UNSPSC Code: 41106212
• NACRES: NA.85

Properties

• product name: Tryptone enzymatic digest from casein, for biotechnological purposes
• biological source: bovine milk
• Quality Level: 200
• grade: for biotechnological purposes
• form: powder
• composition: amino-nitrogen, ≥3.5% ; total nitrogen (N), ≥12%
• ign. residue: ≤17.0%
• loss: ≤6.0% loss on drying
• pH: 6.0-7.5 (25 °C, 2% in H₂O)
• solubility: H₂O: 2%, clear, faintly to slightly yellow
• application(s): food and beverages; microbiology
• storage temp.: 15-25°C

Description

General description

Tryptone is a general-purpose peptone produced by the digestion of casein with the protease trypsin. It is used for the cultivation of most bacteria, fungi, and some protozoa. Casein is the main protein of milk, and a rich source of nitrogenous nutrients (in the amino acids). This peptone is recommended for culture media in analytical microbiology and in industrial fermentation.

Application

Tryptone from enzymatic casein digest can be developed for use in molecular genetic media such as – NZCYM, NZYM and NZM broth. The enriched NZ media can be used to: -

• Grow recombinant strains of E. coli
• Propagate theta bacteriophages

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)