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10080

Sigma-Aldrich

α-Amylase from hog pancreas

powder, ~50 U/mg

Synonym(s):

α-Amylase Enzyme

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About This Item

EC Number:
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

hog pancreas

form

powder

specific activity

~50 U/mg

storage temp.

−20°C

General description

Pancreatic α-amylase is produced by the pancreatic acinar cells and released into the duodenum. It is a major molecule of pancreatic fluid.

Application

α-Amylase from hog pancreas has been used:
  • in the in vitro digestion system to study the hydrolysis of pea globulins
  • in vitro α-amylase inhibition study
  • to prepare digestive juice (salivary juice) for the in vitro model of the human digestion system

Biochem/physiol Actions

α-Amylase is a starch hydrolase, for glucose production, important for energy acquisition. It catalyzes the hydrolysis of α-1,4-glycosidic linkages in starch to form glucose, maltose, and maltotriose units. In mammals, α-amylase regulates the sugar assimilation by reducing the glucose uptake by Na+/glucose cotransporter 1 (SGLT1) and stimulating glycoprotein N-glycans mediated starch digestion. α-Amylase inhibitors are associated with the treatment of type 2 diabetes mellitus. α-Amylases are widely known industrial enzymes used in food, detergent, textile, fermentation, and pharmaceutical industries.

Unit Definition

1 U corresponds to the amount of enzyme which liberates 1 μmol maltose per minute at pH 6.9 and 25°C (starch acc. to Zulkowsky, Cat. No. 85642, as substrate)

Other Notes

Optimum pH and temperature 6.9 and 53 °C, respectively; calcium is required for activity and also prevents degradation by trypsin; Characterization.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Paula Monteiro de Souza et al.
Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 41(4), 850-861 (2010-10-01)
Amylases are one of the main enzymes used in industry. Such enzymes hydrolyze the starch molecules into polymers composed of glucose units. Amylases have potential application in a wide number of industrial processes such as food, fermentation and pharmaceutical industries.
Muhammad H Alu'datt et al.
Food chemistry, 240, 784-798 (2017-09-28)
This investigation was performed to assess the effects of sonication on the structure of protein, extractability of phenolics, and biological properties of isolated proteins and protein co-precipitates prepared from brewers' spent grain and soybean flour. Scanning electron micrographs revealed that
Kimie Date et al.
The Journal of biological chemistry, 290(28), 17439-17450 (2015-05-30)
α-Amylase, a major pancreatic protein and starch hydrolase, is essential for energy acquisition. Mammalian pancreatic α-amylase binds specifically to glycoprotein N-glycans in the brush-border membrane to activate starch digestion, whereas it significantly inhibits glucose uptake by Na(+)/glucose cotransporter 1 (SGLT1)
I. Kluh
Collection of Czechoslovak Chemical Communications, 44, 288-288 (1979)
Shuang-Qi Tian et al.
Journal of food science, 84(8), 2059-2064 (2019-07-25)
The objective of this study was to evaluate the effects of different degree of substitution on structural characteristics and crystalline properties of resistant starch esterfied by L-malic acid. With the deepening of the esterification reaction, malate starches particles became larger

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