Appearance (Colour)
Light to medium tan
Appearance (Form)
Free flowing, homogeneous powder
Solubility (Colour) 2% aq. solution
Light to medium amber, clear
pH (25°C)
7.0 ± 0.2
Stability (After autoclaving)
Light to medium amber, clear
Loss on drying
< 5.0%
Nitrogen content (N)
11.5 - 15.5 %
NaCl
< 5.0%
Ash
< 10.0%
Total Aerobic microbial count
(By Plate Count Method ); <=10,000 cfu/gm
Total Yeast and Mould count
(By Plate Count Method ); <=100 cfu/gm
Coagulable Protein Test
Passes test
Cultural Response
Inoculate and incubate at 37°C for 18-48 hours
Organism
Staphylococcus aureus ATCC 25923
Inoculum (cfu) 10-100
Growth : Good
Organism
Escherichia coli ATCC 25922
Inoculum (cfu) 10-100
Growth : Good
Organism
Pseudomonas aeruginosa ATCC 25923
Inoculum (cfu) 10-100
Growth : Good
Organism
Enterobacter aerogenes ATCC 13048
Inoculum (cfu) 10-100
Growth : Good
Indole Production (0.1%)
Escherichia coli ATCC 25922
Growth : Good, Result : Positive
Hydrogen Sulphide Production (1.0%)
Salmonella typhimurium ATCC 14028
Growth : Good, Result : Positive
Fermentable carbohydrates (2%)
Escherichia coli ATCC 25922
Growth : Good, Result : Negative
Acetylmethylcarbinol Production
Enterobacter aerogenes ATCC 13048
Growth : Good, Result : Positive
Applications
Peptone derived from vegetable/plant source; is alternative to traditional animal based peptones.It contains polypeptides and amino acids which provides readily available source of nitrogen and minerals for the growth of bacteria and fungi.