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10069
α-Amylase from Bacillus sp.
powder, yellow-brown, ~380 U/mg
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250 MG
CZK 2,350.00
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CZK 2,350.00
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About This Item
CAS Number:
UNSPSC Code:
12352204
eCl@ss:
32160410
EC Number:
232-565-6
NACRES:
NA.54
MDL number:
Specific activity:
~380 U/mg
Biological source:
Bacillus sp.
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biological source
Bacillus sp.
Quality Level
form
powder
specific activity
~380 U/mg
greener alternative product characteristics
Waste Prevention
Design for Energy Efficiency
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sustainability
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color
yellow-brown
greener alternative category
, Enabling
storage temp.
2-8°C
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1 of 4
This Item | |||
|---|---|---|---|
| biological source Bacillus sp. | biological source - | biological source bacterial (Bacillus amyloliquefaciens) | biological source Bacillus sp. |
| specific activity ~380 U/mg | specific activity ~50 U/mg | specific activity ≥1,500 units/mg protein (biuret) | specific activity ≥400 units/mg protein (Lowry) |
| form powder | form powder | form lyophilized powder | form powder |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. −20°C | storage temp. −20°C |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| color yellow-brown | color yellow-brown | color - | color - |
General description
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.
Application
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
Heat stability of bacterial α-amylases; Action pattern on sweet potato starch, amylose and amylopectin; Action on native wheat starch.
Biochem/physiol Actions
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.[4] An extracellular secreted thermostable amylase from the Bacillus subtilis strain has also been reported.
Other Notes
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)
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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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)
P Colonna et al.
Biotechnology and bioengineering, 31(9), 895-904 (1988-06-05)
Native starch granules from wheat have been subjected to enzymatic depolymerization with an alpha-amylase from Bacillus subtilis. Crystallites made from short-chain amylose and residues from mild acid hydrolysis have been also tested. Electron microscopy, particle size analysis, DSC, and x-ray
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 258938-50G | 04061826069639 |
| 10069-250MG | 04061838664204 |
| 10069-1G | 04061838663986 |
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What is the production strain of this product?
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In which solution I should to dissolve the alfa amylase? should had ca+2? (for starch degradation)
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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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