Description
Peptone is a pancreatic digest of casein and as such composed of a balanced mixture of amino acids, including essential amino acids, and low molecular weight peptides. It can be used as a supplement for microbiological culture media, for the production of vaccines, toxins, enzymes and other proteins in fermentation processes. It serves as a nutritious hydrolysate, especially for organisms that prefer peptides over amino acids.
Features
Quantity: 500g
Appearance: Clear beige powder.
Storage: 2ºC – 25ºC. When not in use, keep container closed to avoid hydration.
Typical composition of amino acids (g/100g)
Alanine: 2.91
Arginine: 3.30
Aspartic Acid: 6.99
Cystine: 0.44
Glutamic acid: 18.74
Glycine: 1.86
Histidine: 2.38
Isoleucine: 4.45
Leucine: 7.62
Lysine: 6.60
Methionine: 2.32
Phenylalanine: 4.11
Proline: 8.65
Serine: 5.08
Threonine: 3.91
Tryptophan: 0.95
Tyrosine: 1.86
Valine: 5.51
Chemical Characteristics:
Amino Nitrogen: min: 3.9%
Total Nitrogen: min:10%
Loss on drying: max 6%
Ash content: max 15%
Reducing Sugars: negative
Undigested Protein: negative
Proteoses: positive
Nitrites: negative
Tryptophan: positive
pH (2%): 7.0±0.5