82303

Casein Peptone

Enzymatic digest of casein from bovine milk, ~0.3 AN:TN ratio, suitable for biotechnology and microbiology

• Synonym(s): Peptone from casein, Peptone from casein, enzymatic digest
• CAS Number: 91079-40-2
• EC Number: 293-428-4
• MDL number: MFCD23701222
• UNSPSC Code: 41106212
• eCl@ss: 42040102
• NACRES: NA.85

Properties

• Product Name: Peptone from casein, enzymatic digest, Enzymatic digest of casein, for biotechnological purposes
• biological source: bovine milk
• Quality Level: 200
• grade: for biotechnological purposes
• form: powder
• composition: total nitrogen (N), ~13%
• nitrogen analysis: , ~0.3 AN:TN ratio
• ign. residue: <17%
• loss: <6% loss on drying
• pH: 7.0±0.5 (2% in H₂O)
• solubility: H₂O: 2%, clear, yellow to tan; water: soluble 2%, clear, faintly brown-yellow
• application(s): food and beverages; microbiology

Description

General description

Peptone from an enzymatic digest of casein is used as a nitrogen source in culture media formulated for isolating and cultivating fastidious and non-fastidious bacteria and fungi. It is a refined hydrolysate with high solubility and is used as a microbiological nutrient. It is a rich source of amino acids and peptides recommended for culture media in analytical microbiology and industrial fermentation.

Application

Peptone from casein may be used as medium supplement in the following:
Bacterial cultures for short term storage of bacteria.
The basal Glucose Yeast Peptone (GYP) medium.
As nitrogen supplement in the culture medium of Ceriporiopsis subvermispora.
Culture medium of Methylobacterium rhodesianum and Ralstonia eutropha.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves