Appearance (Colour)
White to off white
Appearance (Form)
Lyophilized powder
Solubility (Turbidity) 0.1% aq. solution
Clear
Solubility (Colour) 0.1% aq. solution
Colourless
Activity
min. 50 Kunitz/mg
Loss on drying
max. 2%
Unit Definition
One unit is defined as the amount of enzyme necessary to hydrolyze RNA to yield a velocity constant, k = 1, at 25°C and pH5.0 (also known as Kunitz-Unit).
Enzyme solution for activity determination
Prepared in cold ultrapure water.