Merck
CN

10080

Sigma-Aldrich

α-淀粉酶 来源于猪胰腺

powder, ~50 U/mg

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EC 号:
NACRES:
NA.54

生物来源

hog pancreas

质量水平

形式

powder

specific activity

~50 U/mg

储存温度

2-8°C

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此商品
A3176A4268A8220
form

powder

form

powder

form

saline suspension

form

aqueous solution

specific activity

~50 U/mg

specific activity

≥5 units/mg solid

specific activity

700-1400 units/mg protein (E1%/280)

specific activity

≥800 FAU/g

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

一般描述

胰α淀粉酶由胰腺泡细胞产生并释放至十二指肠。它是胰液的主要分子。

应用

α-猪胰腺淀粉酶用于:
  • 体外消化系统,研究豌豆球蛋白的水解
  • 体外α淀粉酶抑制研究
  • 制备人体消化系统的体外模型消化液(唾液)

生化/生理作用

α-淀粉酶是一种淀粉水解酶,用于生产对能量摄取至关重要的葡萄糖。它可催化水解淀粉中的α-1,4-糖苷键,形成葡萄糖、麦芽糖和麦芽三糖单元。在哺乳动物中,α-淀粉酶通过减少Na+/葡萄糖转运载体1(SGLT1)并刺激糖蛋白N-聚糖介导淀粉消化,调节糖同化。α-淀粉酶抑制剂与II型糖尿病的治疗有关。α-淀粉酶是一种广为人知的工业酶,适用于食品、洗涤、纺织、发酵和制药行业。

单位定义

1单位酶相当于在pH 6.9和25℃条件下,每分钟释放1 μmol麦芽糖所需的酶量(淀粉符合Zulkowsky,货号85642,作为底物)

其他说明

最佳酸碱度和温度分别为6.9和53℃;钙是活性所必需的,也能防止胰蛋白酶降解;表征

象形图

Health hazard

警示用语:

Danger

危险声明

预防措施声明

危险分类

Resp. Sens. 1

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


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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)
Yufang Liu et al.
Journal of agricultural and food chemistry, 65(9), 1865-1873 (2017-02-15)
Health-promoting effects of kefir may be partially caused by bioactive peptides. To evaluate their formation or degradation during gastrointestinal digestion, we monitored changes of the peptide profile in a model of (1) oral, (2) gastric, and (3) small intestinal digestion
Yanmei Huang et al.
Food chemistry, 344, 128610-128610 (2020-11-23)
This study was designed to investigate quantitatively the inhibition and molecular mechanism of pancreatic α-amylase exhibited by flavonoids from dandelion to reveal its potential use in relieving postprandial hyperglycemia. The results show that the flavonoids reversibly inhibited the α-amylase in

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