42395
丹宁酶 来源于无花果曲霉
powder, white, ≥150 U/g
别名:
单宁酰基水解酶
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关于此项目
Specific activity:
≥150 U/g
Biological source:
Aspergillus sp. (A. ficuum)
biological source
Aspergillus sp. (A. ficuum)
Quality Level
form
powder
specific activity
≥150 U/g
impurities
25 mM potassium phosphate, 250 mM NaCl, 50% glycerol
color
white
storage temp.
2-8°C
General description
丹宁酶是一种由植物、细菌、真菌和酵母等多种生物产生的酶。这种酶也存在于植物来源中，例如富含丹宁的蔬菜，尤其是在叶子、果实、树枝和树皮中。
Application
来自 黑曲霉 的丹宁酶被用于：
- 作为标准品测定细菌中分离的丹宁酶活性
- 研究其对细胞膜合成的单宁酸的抑制作用
- 通过酶水解葡萄皮和葡萄籽获得原花青素（PA）
Biochem/physiol Actions
丹宁酶催化位于复合单宁、没食子单宁和没食子酸酯中的酯键，导致没食子酸的释放。这种酶可用作啤酒、茶、葡萄酒和果汁制造中的澄清剂，以及处理单宁污染的农业废物和工业废水。
Other Notes
1 U 相当于在 pH 4.7 和 30°C 下 310 nm 处的吸光度每分钟变化 1.0 的酶量（以单宁酸为底物，最终体积 3 mL）
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
存储类别
11 - Combustible Solids
wgk
WGK 1
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
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Bhakti Bajpai et al.
Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 39(4), 708-711 (2008-10-01)
In a new approach to microbial gallic acid production by Aspergillus fischeri MTCC 150, 40gL(-1) of tannic acid was added in two installments during the bioconversion phase of the process (25gL(-1) and 15gL(-1) at 32 and 44h respectively). The optimum
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 42395-250MG | 04061832103563 |
| 42395-1G | 04061826731642 |