For Microbiology Culture

For Microbiology Cultrue
Total nitrogen TN: 10.8%
pH (5% solution): 6.9
Loss on drying: 4.8%
a-Amino nitrogen AN: 5.05%; 
Residue on ignition: 14.8%
Chloride (NaCl): 0.23%
Total aerobic microbial count: <23/g

Yeast extract is part of many bacterial growth media (e. g. LB-Medium, TB-Medium, YT-Medium etc.). It is highly hygroscopic and should be stored at a dry place.

Sambrook, J., Fritsch, E.F. & Maniatis, T. (1989) Molecular Cloning: A Laboratory Manual, 2nd Edition. Cold Spring Harbor Laboratory Press, Cold Spring Harbor, New York.
Ausubel, F.A., Brent, R., Kingston, R.E., Moore, D.D., Seidman, J.G., Smith, J.A. & Struhl, K. (eds.) (1995) Current Protocols in Molecular Biology. Greene Publishing & Wiley-Interscience, New York.

Store at RT. Keep Dry.