生物来源
Bacillus sp.
质量水平
表单
powder
比活
~380 U/mg
环保替代产品特性
Waste Prevention
Design for Energy Efficiency
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sustainability
Greener Alternative Product
颜色
yellow-brown
环保替代产品分类
, Enabling
储存温度
2-8°C
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一般描述
α-淀粉酶(α-1,4-葡聚糖-4-葡聚糖水解酶)属于糖基水解酶 13 家族。两个天门冬氨酸残基和一个谷氨酸残基是 α-淀粉酶的主要催化残基。所有淀粉酶都具有三个结构域,即具有中央(β/α)8 桶的结构域 A、结构域 B 以及包含结构域 C 的希腊钥匙模体的 β-结构。
我们致力于为您提供更环保的替代产品,以符合“绿色化学的12项原则”的一项或多项原则要求。该产品针对淀粉水解研究进行了优化,可提高能效并防止浪费。有关详细信息,请参阅《Biofiles》的文章。
应用
α-淀粉酶(芽孢杆菌来源)可用于:
- 作为一种分散酶检测金黄色葡萄球菌生物膜的降解
- 木薯淀粉的酶法水解
- 植物性原生非晶颗粒淀粉的酶解
细菌α-淀粉酶的热稳定性;对甘薯淀粉、直链淀粉和支链淀粉的作用方式 ;对天然小麦淀粉的作用。
生化/生理作用
α-淀粉酶介导淀粉、麦芽寡糖和糖原在α-D-(1,4)-糖苷键上的水解。芽孢杆菌是α-淀粉酶异构生产的重要细胞工厂。此外,还有从枯草芽孢杆菌菌株中提取到细胞外分泌的耐热淀粉酶的报道。
其他说明
一个单位是在pH 6.9和25°C下每分钟释放 1 μmol 麦芽糖的酶量(采用产品货号 85642 作为底物)
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
法规信息
常规特殊物品
此项目有
P.L. Chang Rupp et al.
Journal of Food Biochemistry, 12, 191-191 (1988)
Masayuki Kagawa et al.
Journal of bacteriology, 185(23), 6981-6984 (2003-11-18)
The crystal structure of Bacillus subtilis alpha-amylase, in complex with the pseudotetrasaccharide inhibitor acarbose, revealed an hexasaccharide in the active site as a result of transglycosylation. After comparison with the known structure of the catalytic-site mutant complexed with the native
Shaomin Yan et al.
Microbial cell factories, 16(1), 124-124 (2017-07-21)
Amylase plays an important role in biotechnology industries, and Gram-positive bacterium Bacillus subtilis is a major host to produce heterogeneous α-amylases. However, the secretion stress limits the high yield of α-amylase in B. subtilis although huge efforts have been made
Junrong Huang et al.
Carbohydrate polymers, 163, 324-329 (2017-03-08)
After combined hydrolysis by α-amylase and β-amylase at room temperature, spherical blocklets in diameters of 27-60nm were observed on the surface of tapioca starch granules by scanning electron micrography (SEM). Tapioca starch (1%, w/w, db, distilled water) was heated by
Cold-water solubility, oil-adsorption and enzymolysis properties of amorphous granular starches
Fang C, et al.
Food Hydrocolloids, 117, 106669-106669 (2021)
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