Bacterial Alpha-Amylase BAA-0200 is made from submerged culture of Non-GMO Bacillus subtilis through extraction and refining processes. It is an endoamylase, which can quickly decrease the viscosity of the gelatinous starch solution by randomly hydrolyzing starch, glycogen and its degradation products within the α-1, 4 glycosidic bonds and produces soluble dextrins and oligosaccharides. Excessive hydrolysis may result in a small quantity of glucose and maltose.
Stable pH range for BAA-0200 is 6.0 to 7.0, optimum pH range is 6.0 to 6.5, inactivated dramatically with pH below 5.0.
EFFECT OF TEMPERATURE
BAA-0200 can work at temperatures below 60°C (140°F) with an optimum temperature range from
60 to 70°C (140∼158°F). At a temperature range from 70 to 90°C (158∼194°F), the reaction speeds
up with the temperature rises whilst the inactivation also speeds up.
EFFECT OF CALCIUM
The presence of calcium ion plays a protective role for the stability of enzyme activity. The enzyme activity may disappear completely if without calcium ion. The pH range of BAA-0200 can be broadened by adding calcium ions. A calcium concentration of 150 ppm (dry solids basis) is sufficient to ensure the enzyme stability.
Copper, titanium and cobalt ions are moderate inhibitors on this product. Aluminum, lead and zinc ions are strong inhibitors.
Bacterial Alpha-amylases has the function of preservative and anti-aging. Use of this enzyme in baking can enhance the elasticity and texture of bread. However, the high thermal stability of this enzyme enables it remain active during the baking process, which may produce more convertible starches. Starches can be more easily hydrolyzed after gelatinization in baking, hence may result in undesirable stickiness of bread. Therefore, the accurate dosage rate of BAA-0200 should be decided depending on the actual baking conditions, type of baking and bread.
BAA-0200 is packaged in 25kg cardboard drums or kraft paper bags. Customized packaging is available upon request.
BAA-0200 has been formulated for optimal stability. Typical shelf-life is six months provided being stored below 25°C (77°F) in its original packaging, sealed and unopened, protected from the sunlight. Its shelf-life will be eighteen months if it is stored properly at 0∼10°C(32∼50°F). Prolonged storage and/or adverse conditions such as higher temperatures may lead to a higher dosage requirement.
SAFETY & ENZYME HANDLING
Inhalation of enzyme dust and mists should be avoided. In case of contact with the skin or eyes, promptly rinse with water for at least 15 minutes. For detailed handling information, please refer to the Material Safety Data Sheet.