Appearance (Colour)
Beige to Tan
Appearance (Form)
Free ,flowing homogeneous powder
Solubility (Colour) 2% aq. solution
Light to medium amber, clear
pH (25°C)
7.0 ± 0.5 (2.0 %)
Stability (After autoclaving)
Light to medium amber, clear
Loss on drying
<= 5.0%
Nitrogen content (N)
12.0 - 13.0 %
NaCl
< 5.0%
Ash
15%
Total Aerobic microbial count
(By Plate Count Method) : < 10,000 cfu/gm
Total Yeast and Mould count
(By Plate Count Method) : < 100 cfu/gm
Cultural Response
Inoculate and incubate at 37°C for 18-24 hours with the following organisms
Organism
Staphylococcus aureus ATCC 25923
Inoculum (cfu) 10-100
Growth : Good
Organism
Streptococcus pyogenes ATCC 19615
Inoculum (cfu) 10-100
Growth : Good
Organism
Staphylococcus epidermidis ATCC 12228
Inoculum (cfu) 10-100
Growth : Good
Indole Production (0.1%)
Escherichia coli ATCC 25922
Growth : Good, Result : Positive
Fermentable carbohydrates (2%)
Escherichia coli ATCC 25922
Growth : Good, Result : Negative
Applications
Neopeptone, an enzymatic digest of protein is well suited for the growth of many delicate and fastidious bacteria like Group A Streptococci. It also facilitates the development of mucoid colonies of the hemolytic Streptococci.
