Alias: Alpha Amylase Powder, Starch Amylase Enzyme Source: Aspergillus niger deep liquid fermentation Appearance: Off-white fine free-flowing powder Solubility: Fully soluble in water Optional enzyme activity: 2000U/g, 10000U/g, 20000U/g, high-temperature resistant version available Optimal pH: 5.0–7.0Optimal working temperature: 50–90℃