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Peptone
Product Name: Peptone
CAS No.: 91079-46-8
Description:  Soy peptones, are organic compounds. Peptone is a pale yellow powder with the appearance of meat, casein or gelatin hydrolyzed by acid or protease and then dried, which has a special smell of meat. Protein can also be formed as peptone after decomposition by acid, alkali or protease. One of the initial digestion products of protein in the stomach is peptone.
Specification: 

Item

Specification

 

 

Sensitivity test

Gram-positive bacilli, sensitivity 10^-4

 

Escherichia coli, sensitivity 10^-6

 

Streptococcus haemolyticus type B, sensitivity 10^-6

Appearance

Yellow powder

PH value

4.5-7.5

Total nitrogen

¡Ý8.0%

Amino nitrogen

¡Ý2.0%

Drying weight loss

¡Ü6.0%

Burning residue

¡Ü10.0%

 

Pigment production test

Staphylococcus aureus: positive (yellow pigment)

 

Pseudomonas aeruginosa: Positive (green pigment)

 

Indigo substrate test

Escherichia coli: positive (rose-red pigment)

 

Salmonella typhimurium: negative

Hydrogen sulfide test

Salmonella typhi: Positive (H2S)

 

Shigella dysentery bacillus: negative

 
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