α-Amylase from Aspergillus oryzae powder, ≥150 units/mg protein (biuret) Sigma A9857
По запросу
- Производитель: Sigma
- Каталожный номер:
A9857 - CAS номер : 9001-19-8
General description
Sigma Life Science is committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for waste prevention when used in starch ethanol research. For more information see the article in biofiles.
Other Notes
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enz
Packaging
250000, 1000000, 5000000 units in glass bottle
Quality
Crude
Unit Definition
One unit will liberate 1.0mg of maltose from starch in 3 min at pH 6.9 at 20 °C.
Physical form
powder containing dextrin
Application
α-Amylase is used to hydrolyze α bonds of α-linked polysaccharides, such as starch and glycogen. α-Amylase has been used in various plant studies, such as metabolism studies in Arabidopsis 1. Amylases from Aspergillus oryzae are commonly used as baking additives to prevent staling in the baking industry, clarify haze from fruit juices and alcoholic beverages, and to produce glucose and maltose syrup products 2.
Biochem/physiol Actions
α-Amylase hydrolyzes the α-(1,4) glucan linkages in polysaccharides of three or more α-(1,4) linked D-glucose units. Natural substrates such as starch and glycogen are broken down into glucose and maltose. The International Union of Immunological Societies (IUIS) has classified α-amylase from Aspergillus oryzae (Asp o II) as an occupational allergen that can cause respiratory symptoms 2.
Характеристики реактива | |
storage temp. | −20°C |