General description
微生物淀粉酶是胞外酶，可用于多种工业应用，如面包和麦芽糖浆生产、酱油和豆面酱发酵等。从米曲霉中分离的α-淀粉酶的分子量为51kDa（沉降和扩散）和49kDa（凝胶过滤）。
Application
α-淀粉酶已被用作
- 琼脂平板和羧甲基纤维素清除试验的对照酶，用于筛选淀粉水解的纤维素酶活性，
- 以便探讨小麦淀粉在冷冻面团中
- 抑制金黄色葡萄球菌生物膜的作用。
Biochem/physiol Actions
米曲霉α-淀粉酶(Ao α-淀粉酶)酶催化可溶性淀粉和相关底物中α-1,4糖苷键的水解。这些底物被分解并释放较短的低聚糖和α-极限糊精。
Other Notes
1个酶活力单位（U）相当于在pH6.0和25℃下每分钟释放1μmol麦芽糖所需的酶量（淀粉符合Zulkowsky，货号85642，作为底物）。
用于测定食物中的脂肪；应用于糖苷键的（选择性）水解/缩合。
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Resp. Sens. 1
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
法规信息
常规特殊物品
此项目有
Han Tao et al.
Food chemistry, 190, 588-593 (2015-07-28)
The wheat dough was subjected to freezing/thawing treatment for 0, 3, 7, and 10 cycles and fractionated into non-gluten proteins and starch. High-performance liquid chromatography revealed changes in molecular mass distribution occurred for the extracted non-gluten proteins. As for the
Han Tao et al.
Food chemistry, 265, 18-22 (2018-06-10)
Properties of starches isolated from soft and hard wheat dough after freezing/thawing (F/T) treatment were investigated. Significance of results was observed between isolated hard wheat starch (HWS) and soft wheat starch (SWS), but both cultivars showed an increase in the
P C Sehnke et al.
Proceedings of the National Academy of Sciences of the United States of America, 98(2), 765-770 (2001-01-10)
In higher plants the production of starch is orchestrated by chloroplast-localized biosynthetic enzymes, namely starch synthases, ADP-glucose pyrophosphorylase, and starch branching and debranching enzymes. Diurnal regulation of these enzymes, as well as starch-degrading enzymes, influences both the levels and composition
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 10065-10G | 04061835511242 |
| 10065-50G | 04061835550982 |