Plant peptone
This reference is characterized by a relatively high carbohydrate count and is produced for primarily diagnostic purposes, in terms of density, particle size and clarity. Normally associated with media formulations where color and clarity are important.
PRINCIPLE CHEMICAL CHARACTERISTICS :
Total Nitrogen =9,3 – 10,7%
Amino Nitrogen = 1,8 – 3,2%
pH at 2% = 6,5 – 7,5
Sulfuric ash ≤ 17%
Loss on Drying ≤ 6%
Nitrites = negative
Proteoses = presence
Tryptophane = presence
Stability at 2% = stable
Aminogram
AMINO ACID DISTRIBUTION (mg/g):
Aspartic acid : 78
Threonine : 23
Serine: 32
Glutamic acid : 124
Proline: 33
Glycine: 47
Alanine: 27
Cysteine: 8
Valine: 28
Methionine : 9
Isoleucine: 28
Leucine: 47
Tyrosine: 25
Phenylalanine: 31
Histidine: 36
Lysine: 39
Arginine: 87
Tryptophan: 6
Documentation
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