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
biological source
Aspergillus sp. (A. ficuum)
form
powder
specific activity
≥150 U/g
impurities
25 mM potassium phosphate, 250 mM NaCl, 50% glycerol
color
white
storage temp.
2-8°C
Quality Level
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
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
Tadashi Takahashi et al.
Eukaryotic cell, 11(4), 507-517 (2012-01-31)
Loop-out-type recombination is a type of intrachromosomal recombination followed by the excision of a chromosomal region. The detailed mechanism underlying this recombination and the genes involved in loop-out recombination remain unknown. In the present study, we investigated the functions of
Luis V Rodríguez-Durán et al.
Journal of microbiology and biotechnology, 21(9), 960-967 (2011-09-29)
Tannin acyl hydrolase, also known as tannase, is an enzyme with important applications in the food, feed, pharmaceutical, and chemical industries. However, despite a growing interest in the catalytic properties of tannase, its practical use is very limited owing to
Jose Valdo Madeira et al.
Bioresource technology, 102(15), 7343-7348 (2011-05-27)
In this work, we introduce a biological detoxification method that converts toxic waste from castor beans into animal feed material. This method simultaneously induces the production of tannase and phytase by Paecilomyces variotii; both enzymes have high levels of activity
Jose Valdo Madeira et al.
Bioprocess and biosystems engineering, 35(3), 477-482 (2011-09-13)
The production of enzymes such as tannases and phytases by solid-state fermentation and their use in animal feed have become a subject of great interest. In the present work, Paecilomyces variotii was used to produce tannase and phytase simultaneously. Solid-state
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