Quantity: 50g Working Concentration: 0.1 - 1% pH: 3 - 6 Temperature °C: 20 - 60 Substrate: 2% Starch Product: Maltose Source: Aspergillus spp. Notes: Contains reducing sugars These enzymes should be stored in a refrigerator at 4 °C. This should ensure a shelf life of up to 12 months.