相关产品推荐更多 >
万千商家帮你免费找货
0 人在求购买到急需产品
- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
Please store the product under the recommended conditions in the Certificate of Analysis.
- 库存:
货期:1-2天
- 供应商:
MedChemExpress LLC
- 规格:
500 mg/1 g
| 规格: | 500 mg | 产品价格: | ¥400.0 |
|---|---|---|---|
| 规格: | 1 g | 产品价格: | ¥500.0 |
MCE 的所有产品仅用作科学研究或药证申报,我们不为任何个人用途提供产品和服务。
α-Amylase
CAS No. : 9000-90-2
MCE 国际站:α-Amylase
产品活性:α-Amylase 是一种水解酶,催化淀粉中 α-1,4-糖苷键的水解,产生如葡萄糖和麦芽糖等产物。
研究领域:Metabolic Enzyme/Protease
作用靶点:Amylases
In Vitro: α-Amylase is produced by several bacteria, fungi and genetically modified species of microbes. α-Amylase is a calcium metalloenzyme i.e. it depends on the presence of a metal co factor for its activity. α-Amylase has become an enzyme of crucial importance due to its starch hydrolysis activity and the activities that can be carried out owing to the hydrolysis. One such activity is the production of glucose and fructose syrup from starch. α-Amylase catalyses the first step in this process. Previously, starch was hydrolyzed into glucose by acid hydrolysis. α-Amylase can be isolated from plants, animals or microorganisms. The enzyme has been isolated from barley and rice plants. It has been found that cassava mash waste water is a source of α-Amylase which is active in wide range of pH and temperature.
相关产品:Natural Product Library Plus | Bioactive Compound Library Plus | Ethylidene-4-nitrophenyl-a-D-Maltoheptaoside | α-Amylase-IN-3 | 2,7"-Phloroglucinol-6,6'-bieckol | 3,5,6,7,8,4'-Hexamethoxyflavone | 8,3′,4′-Trihydroxyflavone-7-O-β-D-glucopyranoside | Antidiabetic agent 2 | Bacterial α-Amylase | Chinese gallotannin | HPA-IN-1 | HPA-IN-2 | Quercetin 3-(6″-caffeoylsophoroside) | α-Amylase from Aspergillus oryzae | α-Amylase-IN-1 | α-Amylase-IN-4 | α-Amylase/α-Glucosidase-IN-3 | α-Amylase/α-Glucosidase-IN-4 | α-Amylase/α-Glucosidase-IN-5 | α-Amylase/α-Glucosidase-IN-6 | α‑Amylase-IN-1
热门产品线:重组蛋白 | 化合物库 | 天然产物 | 荧光染料 | PROTAC | 同位素标记物
Trending products:Recombinant Proteins | Bioactive Screening Libraries | Natural Products | Dye Reagents | PROTAC | Isotope-Labeled Compounds
风险提示:丁香通仅作为第三方平台,为商家信息发布提供平台空间。用户咨询产品时请注意保护个人信息及财产安全,合理判断,谨慎选购商品,商家和用户对交易行为负责。对于医疗器械类产品,请先查证核实企业经营资质和医疗器械产品注册证情况。
文献和实验淀粉酶主要有耐中温(60—70℃)和耐高温(90-95℃).根据酶反应动力学分析,温度每升高10℃,反应速度提高1—2倍,故耐高温。α—淀粉酶具有反应速度快、效率高、成本低等优势.α—淀粉酶是一种金属酶,Ca2+使α—淀粉酶保持适当的构象,从而维持其最大的活性和稳定性.除Ca2+外,其它二价碱金属离子Ba2+、Mg2+等也有维持α—淀粉酶活性的作用.耐中温α—淀粉酶为适应生产工艺的高温条件,有时需添加Ca2+等稳定剂,但耐高温α—淀粉酶在Ca2+浓度很低时,稳定性就很好。在实际使用时,不需添加Ca
问:看到有文献将β-环糊精交联后作柱材料,用于从水溶液中吸附α-淀粉酶,吸附上去后再用溶剂把α-淀粉酶洗下来,也有人在α-淀粉酶的水溶液中加入β-环糊精或羟丙化β-环糊精来提高α-淀粉酶的稳定性。疑问: β-环糊精与淀粉都是多糖(β-环糊精是7个葡萄糖围成的筒状结构),用β-环糊精作柱材料,不怕被淀粉酶水解吗?文献上的实验温度都是37度。 答:环糊精无半缩醛羟基,故无还原性,对酸稳定,普通淀粉酶难水解。
一、原理 淀粉性种子在萌动过程中,胚释放出来的赤霉素能诱导糊粉层细胞中α-淀粉酶基因的表达,引起α-淀粉酶生物合成,并分泌到胚乳中催化淀粉水解为糖。通过碘试法比色测定淀粉在酶催化反应过程中的消耗量,可以定量分析α-淀粉酶的活力。 二、材料、仪器设备及试剂 (一)材料:大麦、小麦种子 (二)仪器设备:1. 分光光度计;2. 恒温箱;3. 水浴锅;4. 移液管;5. 烧杯;6. 试管;7. 青霉素小瓶;8. 镊子;9. 刀片。 (三)试剂:1. 1%次氯酸
技术资料暂无技术资料 索取技术资料

















