CULTURE MEDIA - LIVER EXTRACT

Liver extract powder is a dehydrated extract of fresh liver tissues of healthy animals. It is processed under controlled conditions to retain all the nutritive values of liver.

Quality Control
PHYSICAL DATA
Appearance	Light brown amorphous powder
Odour	meat like odour
pH (2% solution)	6.0 to 7.0
Solubility	Freely soluble in water forming sparklingly clear soln
Loss on Drying	Not more than 5.0%
CHEMICAL DATA
Total Nitrogen (Kjaldal method) content TN	Not less than 8%
Amino Nitrogen AN	Not less than 4.5 %
Total Protein content  (kjaldal factor- 6.25)	Not less than 80%
Degree of Hydrolysis  DH = (AN/TN) X 100	Not less than 25%
Ash	Not more than 10%
Proteose Test (As per USP)	Passes
Coagulable protein  (As per USP)	Passes
BACTERIOLOGICAL DATA
Total Plate Count	Not more than 5000CFU/gm
E.coli/10 gm	Absent
Salmonella/10gm	Absent