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About This Item
CAS Number:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-566-1
MDL number:
Specific activity:
≥750 units/mg protein (E1%/280 )
Biological source:
sweet potato
Concentration:
≥7.0 mg/mL
biological source
sweet potato
Quality Segment
type
Type I-B
form
ammonium sulfate suspension
specific activity
≥750 units/mg protein (E
greener alternative product score
old score: 57
new score: 1
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greener alternative product characteristics
Waste Prevention
Safer Solvents and Auxiliaries
Design for Energy Efficiency
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sustainability
Greener Alternative Product
concentration
≥7.0 mg/mL
greener alternative category
storage temp.
2-8°C
General description
β-Amylases belongs to the class of amylolytic enzymes.
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Application
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
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.
Biochem/physiol Actions
β-Amylases plays a major role in examining enzymatic promiscuity among glycosidases.
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.
Physical form
Crystalline suspension in 2.3 M (NH4)2SO4
Other Notes
One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 4.8 at 20 °C.
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
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signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Storage Class
11 - Combustible Solids
wgk
WGK 3
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