This product is assigned an activity specification of 30 - 60 units per milligram protein. The minimum protein content is 80%. At the minimum protein content, each 5 mg vial will contain 120 - 240 units. This information is lot-specific and reported in the Certificate of Analysis. Please see the link below to review a sample or lot-specific Certificate:
https://www.sigmaaldrich.com/product/sigma/a7420#product-documentation
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| Ihnen/SKU | Verfügbarkeit | Preis |
|---|---|---|
5 mg | Warenkorb auf Verfügbarkeit prüfen | CHF 58.00 |
25 mg | Warenkorb auf Verfügbarkeit prüfen | CHF 160.00 |
100 mg | Warenkorb auf Verfügbarkeit prüfen | CHF 524.00 |
Über diesen Artikel
CHF 58.00
form
lyophilized powder
Quality Segment
specific activity
30-60 units/mg protein (biuret)
composition
protein, ≥80%
greener alternative product characteristics
Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
impurities
≤0.02% glucose
greener alternative category
, Enabling
storage temp.
−20°C
General description
Application
Biochem/physiol Actions
Physical form
Other Notes
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| specific activity 30-60 units/mg protein (biuret) | specific activity ≥260 U/mL | specific activity - | specific activity ≥40,000 units/g solid |
| form lyophilized powder | form aqueous solution | form liquid | form lyophilized solid |
| storage temp. −20°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. −20°C |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| impurities ≤0.02% glucose | impurities - | impurities transglucosidase activity, pectinase, b-glucanase, and hemicellulase, free | impurities - |
| greener alternative product characteristics Waste Prevention | greener alternative product characteristics - | greener alternative product characteristics - | greener alternative product characteristics - |
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signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Lagerklasse
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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How do you determine how many units there are in the sample I have, or how much substrate it will break down?
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What is the shelf life of a solution (1 mg/mL in water) of Product A7420, Amyloglucosidase from Aspergillus niger and how should it be stored?
1 answer-
The stability of this product in solution has not been evaluated. However, 172426 Glucoamylase (syn. Amyloglucosides) from Rhizopus, notes that solutions are stable when stored frozen in aliquots at -20°C for up to 3 months. Similar stability would be expected for A7420. Avoid freeze/thaw cycles of solutions.
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Does Product A7420, Amyloglucosidase from Aspergillus niger, contain any stabilizers or additives?
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The starting material for Product No. A7420 is Product No. A3042, which is a preparation of the enzyme in a 1 M glucose solution. This is dialyzed against water until the glucose concentration is less than 0.02%, and then lyophilized.
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How can a solution of Product A7420, Amyloglucosidase from Aspergillus niger, be prepared?
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A 1 mg/mL solution may be prepared in water.
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What is the Department of Transportation shipping information for this product?
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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.
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What is the molecular weight of Product A7420, Amyloglucosidase from Aspergillus niger?
1 answer-
Amyloglucosidase from A. niger exists in two isoforms with MWs of 69,810 and 89,130, as determined by SDS-PAGE. See: Starch, 34, 346 (1982).
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