Appearance (Colour)
Pale Yellow to Pale brown
Appearance (Form)
Powder
Activity
min. 10 units /mg powder
Unit Definition
One unit causes the formation of one micromole of p-nitrophenol (PNP) from p-nitrophenyl-ß-D-glucopyranoside (PNPG) per minute at pH 7.0 at 37 °C.
Enzyme solution for activity determination
Prepared in 50mM Tris HCl buffer, pH 7.8.
