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1000000 UNITS
$272.00
5000000 UNITS
$1,020.00
25000000 UNITS
$3,750.00
About This Item
$272.00
请联系客服了解存货情况
新价格，新优惠！
生物来源
Bacillus sp.
表单
powder
比活
≥400 units/mg protein (Lowry)
分子量
58-62 kDa
溶解性
H2O: soluble 1.0 mg/mL
储存温度
−20°C
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应用
生化/生理作用
α-淀粉酶可水解由三个或多个α-(1,4)连接D-葡萄糖单元组成的多糖的α-(1,4)葡聚糖键。天然底物（如淀粉和糖原）可被分解成葡萄糖和麦芽糖。 α -淀粉酶，分离自 枯草芽孢杆菌，是二聚体，单体分子量为48.9 kDa。α-淀粉酶是一种金属蛋白，含有至少一摩尔的钙离子。钙离子的存在增加了该酶对热、酸或尿素变性的稳定性。该产品活性的pH范围是5.0至7.5，最佳pH范围是6.0-7.0。该产品在pH 5.0至10.0范围内保持稳定。最佳温度范围为65-75°C。有效温度范围高达90°C。[5]
质量
包含淀粉作为增量剂。
单位定义
在pH 6.9、温度20 °C条件下，一个单位可在3分钟内从淀粉中释放出1.0 mg麦芽糖。
其他说明
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
历史批次信息供参考:
分析证书(COA)
Lot/Batch Number
Comparison of the effects of microbial α-amylases and scalded flour on bread quality
Hopek M, et al.
Acta Scientiarum Polonorum. Technologia Alimentaria, 5(1), 97-106 (2006)
Utilization of Hydroxypropylated Waxy Rice and Corn Starches in Korean Waxy Rice Cake to Retard Retrogradation
Han J-A, et al.
Cereal Chem., 82(1), 88-92 (2005)
Usage of Enzyme Substrate to Protect the Activities of Cellulase, Protease and α-Amylase in Simulations of Monogastric Animal and Avian Sequential Total Tract Digestion
Wang HT and Hsu JT
Asian-Australasian Journal of Animal Sciences, 19(8), 1164-1173 (2006)
Theoretical and Experimental Studies of the Effects of Heat, EDTA, and Enzyme Concentration on the Inactivation Rate of α-Amylase from Bacillus sp.
Lecker DN and Khan A
Biotechnol. Progress, 12(5), 713-717 (1996)
Mario Falchi et al.
Nature genetics, 46(5), 492-497 (2014-04-02)
Common multi-allelic copy number variants (CNVs) appear enriched for phenotypic associations compared to their biallelic counterparts. Here we investigated the influence of gene dosage effects on adiposity through a CNV association study of gene expression levels in adipose tissue. We
实验方案
可根据此操作规程测定α-淀粉酶的活性。该α-淀粉酶酶促测定将会指导您完成整个过程及必要的计算。
Follow our procedure for the determination of alpha-Amylase activity. This enzymatic assay of a-Amylase guides you through the entire process and necessary calculations.
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