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Merck

10069

Sigma-Aldrich

α-Amylase from Bacillus sp.

greener alternative

powder, yellow-brown, ~380 U/mg

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250 MG
US$ 155,00
1 G
US$ 492,00

US$ 155,00

PRICE WITHOUT NATIONAL TAXES

Fecha estimada de envío01 de junio de 2025



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250 MG
US$ 155,00
1 G
US$ 492,00

About This Item

Número de CAS:
Comisión internacional de enzimas:
Número CE:
Número MDL:
Código UNSPSC:
12352204
eCl@ss:
32160410
NACRES:
NA.54

US$ 155,00

PRICE WITHOUT NATIONAL TAXES

Fecha estimada de envío01 de junio de 2025


origen biológico

Bacillus sp.

Formulario

powder

actividad específica

~380 U/mg

características de los productos alternativos más sostenibles

Waste Prevention
Design for Energy Efficiency
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sustainability

Greener Alternative Product

color

yellow-brown

categoría alternativa más sostenible

temp. de almacenamiento

2-8°C

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Descripción general

α-Amylase (α-1,4-glucan-4-glucanohydrolase) belongs to the glycosyl hydrolase family 13. The two aspartic residues and one glutamic acid residue are the prime catalytic residues of α-amylase.[1] All amylases have three domain regions, namely, domain A with a central (β/α)8 barrel, domain B, and β-structure with a Greek key motif encompassing domain C.[1]
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 hydrolysis research. For more information see the article in biofiles.

Aplicación

α-Amylase from Bacillus sp. has been used:
  • as a dispersal enzyme to test degradation of S. aureus biofilms[2],
  • in the enzymatic hydrolysis of tapioca starch[3]
  • in the enzymolysis of plant-based native and the amorphous granular starches[4]

Heat stability of bacterial α-amylasescitation; Action pattern on sweet potato starch, amylose and amylopectincitation; Action on native wheat starch.citation

Acciones bioquímicas o fisiológicas

α-Amylase mediates the hydrolysis of starch, malto-oligosaccharides, and glycogen at the α-D-(1,4)-glucosidic linkages.[1] Bacillus sp. serve as an important cell factory for the heterogeneous production of α-amylase.[5] An extracellular secreted thermostable amylase from the Bacillus subtilis strain has also been reported.[6]

Definición de unidad

One unit is the amount of enzyme which liberates 1 μmole of maltose per minute at pH 6.9 and 25°C (using Cat. No. 85642 as substrate)

Otras notas

Heat stability of bacterial α-amylases[7]; Action pattern on sweet potato starch, amylose and amylopectin[8]; Action on native wheat starch.[9]

Pictogramas

Health hazard

Palabra de señalización

Danger

Frases de peligro

Consejos de prudencia

Clasificaciones de peligro

Resp. Sens. 1

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

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


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Visite la Librería de documentos

Masayuki Kagawa et al.
Journal of bacteriology, 185(23), 6981-6984 (2003-11-18)
The crystal structure of Bacillus subtilis alpha-amylase, in complex with the pseudotetrasaccharide inhibitor acarbose, revealed an hexasaccharide in the active site as a result of transglycosylation. After comparison with the known structure of the catalytic-site mutant complexed with the native
P.L. Chang Rupp et al.
Journal of Food Biochemistry, 12, 191-191 (1988)
Junrong Huang et al.
Carbohydrate polymers, 163, 324-329 (2017-03-08)
After combined hydrolysis by α-amylase and β-amylase at room temperature, spherical blocklets in diameters of 27-60nm were observed on the surface of tapioca starch granules by scanning electron micrography (SEM). Tapioca starch (1%, w/w, db, distilled water) was heated by
Cold-water solubility, oil-adsorption and enzymolysis properties of amorphous granular starches
Fang C, et al.
Food Hydrocolloids, 117, 106669-106669 (2021)
Hydrolysis of starches by the action of an alpha-amylase from Bacillus subtilis
Konsula Z and Liakopoulou-Kyriakides M
Process Biochemistry (Oxford, United Kingdom), 39, 1745-1749 (2004)

Questions

  1. In which solution I should to dissolve the alfa amylase? should had ca+2? (for starch degradation)

    1 answer
    1. This product is soluble in water. No additional calcium is required. For specific applications it may also be prepared in typical sodium or potassium phosphate buffer solutions.

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