Tannase from Aspergillus ficuum
SIGMA/42395 - powder, white, ≥150 U/g
Synonym: Tannin acyl Hydrolase
CAS Number: 9025-71-2
EC Number: 232-804-4
MDL Number: MFCD00212735
Product Type: Chemical
| biological source | Aspergillus sp. (A. ficuum) |
| color | white |
| form | powder |
| impurities | 25 mM potassium phosphate |
| 250 mM NaCl | |
| 50% glycerol | |
| Quality Level | 200  |
| specific activity | ≥150 U/g |
| storage temp. | 2-8°C |
| Application: | Tannase from Aspergillus ficuum has been used: • as a standard to determine the tannase activity of bacterial isolates • to study its effects on the inhibitory activity of tannic acid on biofilm formation • to obtain Proanthocyanidins (PA) by enzymatic hydrolysis of grape skin and seeds |
| Biochem/physiol Actions: | Tannase catalyzes the ester bonds located in complex tannins, gallo-tannins, and gallic acid esters, which results in the release of gallic acid. This enzyme can be used as a clarifying agent in the manufacture of beer, tea, wine, and juices and to treat tannin-polluting agricultural waste and industrial effluents. |
| General description: | Tannase is an enzyme that is produced by several organisms such as plants, bacteria, fungi, and yeast. This enzyme is also found in plant sources such as tannin-rich vegetables, especially in the leaves, fruits, branches, and bark. |
| Other Notes: | 1 U corresponds to the amount of enzyme which changes the absorbance at 310 nm by 1.0 per minute at pH 4.7 and 30°C (tannic acid as substrate, final volume 3 ml) |
| Packaging: | 1 g in glass bottle |
| Packaging: | 250 mg in glass bottle |
| Symbol |  GHS08 |
| Signal word | Danger |
| Hazard statements | H334 |
| Precautionary statements | P261 - P342 + P311 |
| Hazard Codes | Xn |
| Risk Statements | 42 |
| Safety Statements | 22-45 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| activity | specific activity: ≥150 U/g |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352204 |