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Merck

A4551

α-Amylase from Bacillus licheniformis

greener alternative

lyophilized powder, 500-1,500 units/mg protein, 93-100% (SDS-PAGE)

Synonyme(s) :

1,4-α-D-Glucane-glucanohydrolase

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About This Item

Numéro CAS:
9000-85-5
UNSPSC Code:
12352204
eCl@ss:
32160410
EC Number:
232-560-9
NACRES:
NA.54
MDL number:
MFCD00081319
Numéro CE :
3.2.1.1 (BRENDA, IUBMB)

Nom du produit

α-Amylase from Bacillus licheniformis, lyophilized powder, 500-1,500 units/mg protein, 93-100% (SDS-PAGE)

biological source

Bacillus licheniformis

assay

93-100% (SDS-PAGE)

form

lyophilized powder

specific activity

500-1,500 units/mg protein

mol wt

58-62 kDa

composition

Protein, 60-80% BCA

greener alternative product characteristics

Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

greener alternative category

, Enabling

storage temp.

2-8°C

Quality Level

200

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Catégories apparentées

General description

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.

Other Notes

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

Physical form

Lyophilized powder containing potassium phosphate

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

Classe de stockage

11 - Combustible Solids

wgk

WGK 3

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Certificats d'analyse (COA)

Lot/Batch Number
0000520752
0000520751
0000520751
0000520752
0000503874

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. What information is available regarding the solubility of Product A4551, alpha-Amylase from Bacillus licheniformis?

    Product A4551 is a lyophilized alpha-amylase. Although it is reasonable to expect it to dissolve in water or dilute buffer, we do not have a solubility specification; see current specifications on our website. When we measure the specific activity of this enzyme, we typically make our first dilution in cold purified (deionized) water at about 2-3 mg/mL, followed by an intermediate dilution into purified water, followed by dilution into the reaction buffer to start the reaction.When making a solution of the enzyme, it is OK to stir gently with a magnetic stir bar; do not vortex or sonicate.

  6. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Olivier Etienne et al.
Biomacromolecules, 6(2), 726-733 (2005-03-15)
Biomedical devices and modified biomaterial surfaces constitute an expanding research domain in the dental field. However, such oral applications have to face a very particular environment containing specific physiological conditions and specific enzymes. To evaluate their suitability in the development
Uri Lesmes et al.
Journal of agricultural and food chemistry, 56(13), 5415-5421 (2008-06-12)
This study probed the possible effects of type III resistant starch (RS) crystalline polymorphism on RS fermentability by human gut microbiota and the short chain fatty acids production in vitro. Human fecal pH-controlled batch cultures showed RS induces an ecological
Barman, T.E.
Enzyme Handbook, 2, 560-560 (1969)
Nathalie Declerck et al.
Protein engineering, 16(4), 287-293 (2003-05-09)
Bacillus licheniformis alpha-amylase (BLA) is a highly thermostable starch-degrading enzyme that has been extensively studied in both academic and industrial laboratories. For over a decade, we have investigated BLA thermal properties and identified amino acid substitutions that significantly increase or
E G Manzanilla et al.
Journal of animal science, 84(10), 2743-2751 (2006-09-15)
We evaluated the effects of 3 additives, sodium butyrate (AC), avilamycin (AB), and a combination of plant extracts (XT), on the productive performance and the intestinal environment of the early-weaned pig. The XT was a standardized mixture with 5% (wt/wt)
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