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Merck

A9857

α-Amylase from Aspergillus oryzae

greener alternative

≥150 units/mg protein (biuret)

Synonyma:

1,4-α-D-Glucan-glucanohydrolase

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Vybrat velikost

250000 UNITS

2 040,00 Kč

1000000 UNITS

4 390,00 Kč

5000000 UNITS

13 100,00 Kč

2 040,00 Kč

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O této položce

UNSPSC Code:
12352204
eCl@ss:
32160410
EC Number:
232-588-1
NACRES:
NA.54
MDL number:
MFCD00081319
Číslo EC:
3.2.1.1 (BRENDA, IUBMB)

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Název produktu

α-Amylase from Aspergillus oryzae, ≥150 units/mg protein (biuret)

form

powder

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

Quality Level

200

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Tato položka
86250A822086247
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

Taka-Diastase from Aspergillus oryzae powder, slightly beige, ~100 U/mg

Sigma-Aldrich

86247

Taka-Diastase 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

~100 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

200

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

-

sustainability

Greener Alternative Product

sustainability

Greener Alternative Product

sustainability

Greener Alternative Product

sustainability

-

Analysis Note

Crude

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].

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.

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

Physical form

powder

used together

Č. produktu
Popis
Stanovení ceny

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

hcodes

H302,H334

Hazard Classifications

Acute Tox. 4 Oral - Resp. Sens. 1

Skladovací třída

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

Vyberte jednu z posledních verzí:

Osvědčení o analýze (COA)

Lot/Batch Number
0000522180
0000522187
0000522188
0000522188
0000522187

Nevidíte správnou verzi?

Potřebujete-li konkrétní verzi, můžete vyhledat daný certifikát podle čísla dávky nebo čísla šarže.

Vyhledat COA

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Dokumenty související s produkty, které jste v minulosti zakoupili, byly za účelem usnadnění shromážděny ve vaší Knihovně dokumentů.

Navštívit knihovnu dokumentů

X Baur et al.
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 24(5), 465-470 (1994-05-01)
The commercially available alpha-amylase from Aspergillus oryzae which is widely used as a baking additive was compared with a highly purified enzyme preparation. We used enzyme allergosorbent test (EAST), EAST inhibition, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), isoelectric focussing, immunoblotting
Marit Navis et al.
Nutrients, 12(11) (2020-11-08)
Human milk is the optimal diet for infant development, but infant milk formula (IMF) must be available as an alternative. To develop high-quality IMF, bovine milk processing is required to ensure microbial safety and to obtain a protein composition that
Fengyuan Liu et al.
Food & function, 13(6), 3220-3233 (2022-02-26)
Both the liberation and stability of endogenous folate are relevant to the bioaccessibility of folate. Since folates are unstable, in addition to studying the natural folate content in foods, bioaccessibility should be considered. To understand folate changes during digestion, a
Fengyuan Liu et al.
Food chemistry, 350, 129259-129259 (2021-02-24)
Cereals and legumes are rich in folate. However, due to the instability of folate, processing and digestion can induce significant folate loss. In this paper, folate bioaccessibility of faba bean, oat, rye and wheat flours and pastes was studied using
Sean McClure
Journal of AOAC International, 103(4), 1060-1072 (2020-11-27)
A multi-laboratory study was completed for AOAC First Action Method 2015.14. Ten laboratories from eight countries participated. Each laboratory analyzed (in duplicate) a placebo and 14 fortified nutritionals. Product matrices analyzed included milk, soy, partially hydrolyzed milk, partially hydrolyzed soy
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Protokoly

Enzymatic Assay of α-Amylase (EC 3.2.1.1)

Follow our procedure for the determination of alpha-Amylase activity. This enzymatic assay of a-Amylase guides you through the entire process and necessary calculations.

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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