... grade, food grade usd for liqufication 2.Activity:>80,000u/ml 3.PH:5.5--7.0 Heat ... Stable Alpha Amylase Enzyme(activity:>80,000u/ml )Heat-stable Alpha Amylase is hydrolyzing ... ) pH: 5.5-7.0, 3) Enzymatic activity: ≥80,000u/ml4) Storage: Should be stored in a cool place ... 25oC, activity remain ≥90%; 12 months, activity remains ≥80%. Increase dosage after shelf life Heat Stable Alpha Amylase ...