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生物源
sweet potato
品質等級
種類
Type I-B
形狀
ammonium sulfate suspension
比活性
≥750 units/mg protein (E1%/280)
環保替代產品評分
old score: 57
new score: 1
Find out more about DOZN™ Scoring
環保替代產品特色
Waste Prevention
Safer Solvents and Auxiliaries
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
濃度
≥7.0 mg/mL
環保替代類別
儲存溫度
2-8°C
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一般說明
β-淀粉酶属于淀粉分解酶。
我们竭诚为您带来满足绿色替代产品四大类别要求的替代产品。本品属于重新设计产品类别，在“防止废弃物”、“更安全的溶剂和助剂”以及“节能设计”绿色化学原则方面取得了重大改进。 点击此处查看其 DOZN 记分卡。
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。当用于淀粉乙醇研究时，该产品经优化可提高能效和防止浪费。有关详细信息，请参阅《Biofiles》的文章。
應用
β -淀粉酶可用于水解 α-连接的多糖（例如淀粉和糖原）α连接键。 β Sigma的-淀粉酶可用于各种植物研究，如杨树的碳饥饿研究。β来源于甘薯的-淀粉酶可用于检查该酶对金黄色葡萄球菌生物膜的抑制和去除作用。该酶也可用于由糯玉米淀粉制备β-极限糊精。
β甘薯-淀粉酶可用于：
- 水解淀粉和淀粉-果胶复合物
- 比较金黄色葡萄球菌SH1000生物膜抑制和还原试验中不同来源的淀粉酶
- 样品中的硒形态分析
生化／生理作用
β-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。β甘薯-淀粉酶是具有相同亚基的四聚体，其222个分子对称排列。
β-淀粉酶在检测糖苷酶之间的酶乱交中起重要作用。
單位定義
在 pH 4.8，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。
外觀
溶于2.3 M（NH4)2SO4的结晶混悬液
其他說明
訊號詞
Danger
危險聲明
危險分類
Resp. Sens. 1
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
其他客户在看
Mechanisms of enzymatic glycosyl transfer
Comprehensive Natural Products II (2010)
Effect of cross-linking on the resistance to enzymatic hydrolysis of waxy maize starch and low-methoxy pectin
Khondkar D, et al.
Food Hydrocolloids, 23(2), 387-393 (2009)
Xin Qi et al.
Journal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques, 14(1), 60-66 (2011-04-20)
β-Limit dextrin has been studied for many years as a means to investigate the internal structures of amylose and amylopectin. However its role as an excipient in the pharmaceutical industry has never been reported. This paper is the first one
C G Cheong et al.
Proteins, 21(2), 105-117 (1995-02-01)
Sweet potato beta-amylase is a tetramer of identical subunits, which are arranged to exhibit 222 molecular symmetry. Its subunit consists of 498 amino acid residues (Mr 55,880). It has been crystallized at room temperature using polyethylene glycol 1500 as precipitant.
Claudinéia Aparecida Soares et al.
Journal of agricultural and food chemistry, 59(12), 6672-6681 (2011-05-20)
Different banana cultivars were used to investigate the influences of starch granule structure and hydrolases on degradation. The highest degrees of starch degradation were observed in dessert bananas during ripening. Scanning electron microscopy images revealed smooth granule surface in the
商品
Instructions for working with enzymes supplied as ammonium sulfate suspensions
以硫酸铵悬浮液形式提供的酶的使用指南
实验方案
Beta-amylase is found in bacteria, fungi, and plants. To measure β-amylase activity, this assay uses a colorimetric spectrophotometric stop reaction at 540 nm.
β-淀粉酶存在于细菌、真菌和植物中。在测定β-淀粉酶活性时，该测定使用了一种在540nm处的比色分光光度终点反应法进行测定。
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