82303
Peptone from casein, enzymatic digest
Enzymatic digest of casein, for biotechnological purposes
Synonym(s):
Peptone from casein
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About This Item
biological source
bovine milk
Quality Level
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.
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
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Volatiles of bacterial antagonists inhibit mycelial growth of the plant pathogen Rhizoctonia solani.
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.
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
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)
Christiane Galhaup et al.
Microbiology (Reading, England), 148(Pt 7), 2159-2169 (2002-07-09)
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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
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