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A9857

α-Amylase from Aspergillus oryzae

greener alternative

≥150 units/mg protein (biuret)

Synonym(s):

1,4-α-D-Glucan-glucanohydrolase

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Size/SKUAvailabilityPrice
250000 units
Please contact Customer Service for Availability
$123.00
1000000 units
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$235.00
5000000 units
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$586.00

About This Item

UNSPSC Code:
12352204
eCl@ss:
32160410
EC Number:
232-588-1
NACRES:
NA.54
MDL number:
MFCD00081319
EC Number:
3.2.1.1 (BRENDA, IUBMB)
Specific activity:
≥150 units/mg protein (biuret)

$123.00

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form

powder

Quality Segment

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

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 [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].

Physical form

powder

Analysis Note

Crude

Other Notes

One unit will liberate 1.0mg of maltose from starch in 3 min at pH 6.9 at 20 °C.
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer

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This Item
86250A822010065
α-Amylase from Aspergillus oryzae ≥150 units/mg protein (biuret)

Sigma-Aldrich

A9857

α-Amylase from Aspergillus oryzae

α-Amylase from Aspergillus oryzae powder, ~1.5 U/mg (~0.2 U acc. to Willstätter)

Sigma-Aldrich

86250

α-Amylase from Aspergillus oryzae

α-Amylase from Aspergillus oryzae aqueous solution, ≥800 FAU/g

Sigma-Aldrich

A8220

α-Amylase from Aspergillus oryzae

α-Amylase from Aspergillus oryzae powder, ~30 U/mg

Sigma-Aldrich

10065

α-Amylase from Aspergillus oryzae

specific activity

≥150 units/mg protein (biuret)

specific activity

~1.5 U/mg (~0.2 U acc. to Willstätter)

specific activity

≥800 FAU/g

specific activity

~30 U/mg

form

powder

form

powder

form

aqueous solution

form

powder

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

100

sustainability

Greener Alternative Product

sustainability

Greener Alternative Product

sustainability

Greener Alternative Product

sustainability

-

greener alternative product characteristics

Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

-

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pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

hcodes

H302,H334

Hazard Classifications

Acute Tox. 4 Oral - Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificates of Analysis (COA)

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Questions

  1. Please specify quantity for 250KU product no A9857

    1 answer

    1. This product is sold by activity. The minimum activity specification for this material is 150 units per milligram. The weight of this product can be determined using the activity value reported on the lot-specific Certificate of Analysis(COA). For example, the sample COA has an activity value of 280 units/mg. The amount of powder in the 250,000-unit package will be 892.85mg.

      Please navigate to the ‘DOCUMENTATION’ section of the Product Detail Page to access a sample or lot-specific Certificate:
      https://www.sigmaaldrich.com/product/sigma/a9857#product-documentation

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