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A6255 Sigma

α-Amylase from porcine pancreas Green Alternative

DFP Treated, Type I-A, saline suspension, ≥1000 units/mg protein (E1%/280)

Synonym: β-N-acetylglucosaminidase porcine placenta, PPA, al1,4 glucan-4-glucanohydrolase,, porcine pancreas α-amylase



Frequently Asked Questions

Frequently Asked Questions are available for this Product.

General description

Sigma Life Science is 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 waste prevention when used in starch ethanol research. For more information see the article in biofiles.

Molecular mass: 51-54 kDa.
α-Amylase isolated from porcine pancreas is a glycoprotein. It is a single polypeptide chain of ~475 residues containing two SH groups and four disulfide bridges and a tightly bound Ca2+ necessary for stability. Chloride ions are necessary for activity and stability. The pH range for activity is 5.5 to 8.0, with the pH optimum at 7.

Other Notes

View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer

Preparation Note

DFP treated. 2× crystallized

Unit Definition

One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 6.9 at 20 °C.

Physical form

Suspension in 2.9 M NaCl solution containing 3 mM CaCl2


α-Amylase is used to hydrolyze α bonds of α-linked polysaccharides, such as starch and glycogen. Product A6255 is from porcine pancreas and is type I-A. α-Amylase, from Sigma, has been used in various plant studies, such as metabolism studies in Arabidopsis .

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. α -Amylase, from porcine pancreas, is a glycoprotein that consists of a single polypeptide chain of approximately 475 residues containing 2 SH groups and four disulfide bridges and a tightly bound Ca2+ necessary for stability.

Price and Availability

Safety & Documentation

Safety Information

GHS08  GHS08
Signal word 
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Protocols & Articles


Enzymatic Assay of α-AMYLASE (EC

3.2. Unit Definition - One unit will liberate 1.0 mg of maltose from starch in 3 minutes at pH 6.9 at 20°C.
Keywords: Enzyme activity, Enzymology

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

Peer-Reviewed Papers


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