A9857

α-Amylase from Aspergillus oryzae

≥150 units/mg protein (biuret)

• Synonym(s): 1,4-α-D-Glucan-glucanohydrolase
• Enzyme Commission number: 3.2.1.1 (BRENDA, IUBMB)
• EC Number: 232-588-1
• MDL number: MFCD00081319
• UNSPSC Code: 12352204
• eCl@ss: 32160410
• NACRES: NA.54

Properties

• form: powder
• Quality Level: 200
• specific activity: ≥150 units/mg protein (biuret)
• greener alternative product characteristics: Waste Prevention; Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• greener alternative category: Enabling,
• storage temp.: −20°C

Description

General description

We are 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 energy efficiency and waste prevention when used in starch ethanol research. For more information see the article in biofiles.

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 . 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 .

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 .

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

Other Notes

View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer

Safety Information

• Pictograms: GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H302,H334
• Precautionary Statements: P261 - P264 - P270 - P284 - P301 + P312 - P304 + P340 + P312
• Hazard Classifications: Acute Tox. 4 Oral - Resp. Sens. 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves