A7005

β-アミラーゼ from sweet potato

Type I-B, ammonium sulfate suspension, ≥750 units/mg protein (E1%/280)

• 別名: 1,4-α-D-グルカン マルトヒドロラーゼ
• CAS番号: 9000-91-3
• UNSPSC Code: 12352204
• NACRES: NA.54
• EC Number: 232-566-1
• MDL number: MFCD00081391
• EC Number: 3.2.1.2 (BRENDA, IUBMB)
• Specific activity: ≥750 units/mg protein (E1%/280)
• Biological source: sweet potato
• Concentration: ≥7.0 mg/mL

特性

• biological source: sweet potato
• Quality Segment: 200
• type: Type I-B
• form: ammonium sulfate suspension
• specific activity: ≥750 units/mg protein (E1%/280)
• greener alternative product score: old score: 57; new score: 1; Find out more about DOZN™ Scoring
• greener alternative product characteristics: Waste Prevention; Safer Solvents and Auxiliaries; Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• concentration: ≥7.0 mg/mL
• greener alternative category: , Re-engineered
• storage temp.: 2-8°C

詳細

General description

β-Amylases belongs to the class of amylolytic enzymes.

We are committed to bringing you Greener Alternative Products, which adhere to one of the four categories of Greener Alternatives . This product belongs to category of Re-engineered products, showing key improvements in Green Chemistry Principles “Waste Prevention”, “Safer Solvents and Auxiliaries” and “Enhanced Energy Efficiency”. Click here to view its DOZN scorecard.

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 ethanol research. For more information see the article in biofiles.

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[1]
• 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.[2] β-amylase from sweet potato has been used to examine the utility of the enzyme in inhibiting and removing Staphylococcus aureus biofilms.[1] The enzyme has also been used to prepare β-limit dextrin from waxy maize starch.[3]

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.[4]

Physical form

2.3 Mの(NH₄)₂SO₄溶液で調製した結晶性懸濁液

Other Notes

1ユニットは、pH 4.8、20°C、3分間に、1.0 mgのマルトースをデンプンから遊離させる酵素量です。

より詳細な情報につきましては、www.sigma-aldrich.com/enzymeexplorerのenzymes for complex carbohydrate analysisをご覧ください。

安全性情報

• pictograms: GHS08
• signalword: Danger
• hcodes: H334
• pcodes: P261 - P342 + P311
• Hazard Classifications: Resp. Sens. 1
• 保管分類: 11 - Combustible Solids
• wgk: WGK 3