Appearance (Colour)
Yellowish brown
Appearance (Form)
Powder
Activity
min. 40 units/mg solid powder
Unit Definition
One unit will liberate 1.0 micromole of choline from L-α-phosphatidylcholine (egg yolk) per hour at pH 5.6 at 30°C.
Enzyme solution for activity determination
Prepared in Tris HCl buffer, pH 5.6.
