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α-Amylase from Bacillus subtilis, ~165,000 BAU/g, Tan Powder, MP Biomedicals

Supplier: MP BIOMEDICALS (FKA ICN BIOMED
0210044780 0210044790 0210044725
This α-amylase product is a liquefying diastase supplied as a dry, free-flowing powder having high uniformity and excellent storage stability.

  • Presentation: Tan Powder
  • pH: 5 to 7 (optimum around 6.1)

The general procedure for the enzymatic liquefaction of starch is the same, regardless of the nature of the end product. The degree of conversion is followed by measuring the viscosity. The ultimate viscosity is controlled by the level of enzyme and the time which elapses after gelatinization. The usual conditions are 0.03 - 0.06% a-Amylase based on weight of starch for 15 to 30 minutes. The starch is suspended in cold water with agitation sufficient to assure uniform dispersion. If vigorous agitation is provided, the dry solid enzyme may be added directly to the suspension. A safer practice, however, is to dissolve the dry enzyme in a little water before charging. The reaction mixture is then heated to the gelatinization temperature and held there (or slightly hotter) until the required viscosity is reached. Potato, tapioca, sago, arrowroot, and cereal starches other than those obtained from maize or rice are gelatinized at 70 - 75 °C. Maize and rice starches require a temperature of 80 °C. When the conversion is complete, the mixture is heated quickly to 100 °C and held 10 minutes to inactivate the enzyme. Additional heating at 100 °C is sometimes done to effect further reduction in viscosity by the action of heat alone.




 

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Size Storage Temperature Activity Supplier No. VWR Catalog Number Unit Price Quantity
100g - ≥160,000 BAU/gm 0210044780 IC10044780 Each (100g) Retrieving Restricted

Temperature sensitive This Item is temperature-controlled and may have specific temperature and storage requirements for shipping/delivery.

View MSDS SDS
25g +4°C, desiccate ≥160,000 BAU/gm 0210044725 IC10044725 Each (25g) Retrieving Restricted

Temperature sensitive This Item is temperature-controlled and may have specific temperature and storage requirements for shipping/delivery.

View MSDS SDS
500 g - - 0210044790 IC10044790 Each (500g) Retrieving Restricted

Temperature sensitive This Item is temperature-controlled and may have specific temperature and storage requirements for shipping/delivery.

View MSDS SDS
restricted In order to process your orders without delay, we request that you provide the required business documentation to purchase this product.

To order chemicals, medical devices, or other restricted products please provide identification that includes your business name and shipping address via email CMD_NA@vwr.com or fax 484.881.5997 referencing your VWR account number . Acceptable forms of identification are:

  • State issued document with your organization's Federal Tax ID Number
  • State issued document with your organization's Resale Tax ID Number
  • City or County issued Business License
  • State Department of Health Services License
  • Any other ID issued by the State that includes the business name and address

* Please note if your account is within the State of California two of these pieces of identification will be required.
VWR will not lift restrictions for residential shipping addresses.

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SPECIFICATIONS

Enzyme Name alpha-Amylase
Source Bacillus subtilis
CAS No. 9000-90-2
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