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Peptone from casein, enzymatic digest

Enzymatic digest of casein, for biotechnological purposes

Synonym(s):
Peptone from casein
CAS Number:
EC Number:
eCl@ss:
42040102
NACRES:
NA.85

Quality Level

biological source

bovine milk

grade

for biotechnological purposes

assay

~13% total nitrogen (N) basis

form

powder

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

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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.

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

Certificate of Analysis

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Certificate of Origin

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