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Peptone from casein, enzymatic digest

Enzymatic digest of casein, for biotechnological purposes

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

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

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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.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

常规特殊物品

Certificates of Analysis (COA)

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The production of polyhydroxybutyrate by Methylobacterium rhodesianum and Ralstonia eutropha in media containing glycerol and casein hydrolysates.
Bormann EJ and Roth M.
Biotechnology Letters, 21(12), 1059-1063 (1999)
Wolfgang Harreither et al.
Applied and environmental microbiology, 75(9), 2750-2757 (2009-03-10)
Cellobiose dehydrogenase (CDH), an extracellular flavocytochrome produced by several wood-degrading fungi, was detected in cultures of the selective delignifier Ceriporiopsis subvermispora when grown on a cellulose- and yeast extract-based liquid medium. CDH amounted to up to 2.5% of total extracellular
Marco Kai et al.
Archives of microbiology, 187(5), 351-360 (2006-12-21)
Bacterial antagonists are bacteria that negatively affect the growth of other organisms. Many antagonists inhibit the growth of fungi by various mechanisms, e.g., secretion of lytic enzymes, siderophores and antibiotics. Such inhibition of fungal growth may indirectly support plant growth.
Christiane Galhaup et al.
Microbiology (Reading, England), 148(Pt 7), 2159-2169 (2002-07-09)
The major laccase isoenzyme LAP2 secreted by the white-rot basidiomycete Trametes pubescens in response to high copper concentrations was purified to apparent electrophoretic homogeneity using anion-exchange chromatography and gel filtration. The monomeric protein has a molecular mass of 65 kDa
Holly Newton et al.
Nature communications, 11(1), 4653-4653 (2020-09-18)
Cancer cells demand excess nutrients to support their proliferation, but how tumours exploit extracellular amino acids during systemic metabolic perturbations remain incompletely understood. Here, we use a Drosophila model of high-sugar diet (HSD)-enhanced tumourigenesis to uncover a systemic host-tumour metabolic

Articles

Base Ingredients of Microbiology Media

Culture media provides a habitat with suitable nutrients, energy sources, and certain environmental conditions for the growth of microorganisms. The components of the culture media range from simple sugars to peptones, salts, antibiotics, and complex indicators.

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