10069
α-Amylase from Bacillus sp.
powder, yellow-brown, ~380 U/mg
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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:
Product Name
α-Amylase from Bacillus sp., powder, yellow-brown, ~380 U/mg
biological source
Bacillus sp.
form
powder
specific activity
~380 U/mg
greener alternative product characteristics
Waste Prevention
Design for Energy Efficiency
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sustainability
Greener Alternative Product
color
yellow-brown
greener alternative category
, Enabling
storage temp.
2-8°C
Quality Level
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Application
α-Amylase from Bacillus sp. has been used:
- as a dispersal enzyme to test degradation of S. aureus biofilms,
- in the enzymatic hydrolysis of tapioca starch
- 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. Bacillus sp. serve as an important cell factory for the heterogeneous production of α-amylase. An extracellular secreted thermostable amylase from the Bacillus subtilis strain has also been reported.
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. 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.
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.
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)
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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
Regulatory Information
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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
Amylase enzyme from Bacillus subtilis S8-18: a potential desizing agent from the marine environment.
Balu Jancy Kalpana et al.
Biotechnology and applied biochemistry, 61(2), 134-144 (2013-05-11)
The present study is aimed at developing an economical medium for the production of α-amylase from Bacillus subtilis S8-18, a marine sediment isolate from Palk Bay, with various agricultural by-products that are cheap and rich in starch. These products include
J.E. Anderson et al.
Journal of Food Science, 48, 1622-1622 (1983)
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)
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
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