General description
β-Amylases belongs to the class of amylolytic enzymes.
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Application
β -Amylase is used to hydrolyze α bonds of α-linked polysaccharides, such as starch and glycogen. β -Amylase, from Sigma, has been used in various plant studies, such as carbon starvation studies in Populus tremuloides. β-amylase from sweet potato has been used to examine the utility of the enzyme in inhibiting and removing Staphylococcus aureus biofilms. The enzyme has also been used to prepare β-limit dextrin from waxy maize starch.
β-Amylase from sweet potato has been used:
- in the hydrolysis of starch and starch-pectin combinations
- for comparing amylases from different sources in Staphylococcus aureus SH1000 biofilm inhibition and reduction assay
- for selenium speciation in samples
Biochem/physiol Actions
β-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. β-amylase from sweet potato is a tetramer of identical subunits, which are arranged to exhibit 222 molecular symmetry.
β-Amylases plays a major role in examining enzymatic promiscuity among glycosidases.
Unit Definition
One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 4.8 at 20 °C.
Physical form
Crystalline suspension in 2.3 M (NH4)2SO4
Other Notes
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
- UPC:
- 51172415
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- A7005-50KU