42395
Tannase from Aspergillus ficuum
powder, white, ≥150 U/g
Synonyme(s) :
Tannin acyl Hydrolase
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About This Item
Numéro CAS:
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54
Produits recommandés
Source biologique
Aspergillus sp. (A. ficuum)
Forme
powder
Activité spécifique
≥150 U/g
Impuretés
25 mM potassium phosphate
250 mM NaCl
50% glycerol
Couleur
white
Température de stockage
2-8°C
Description générale
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.
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
Actions biochimiques/physiologiques
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.
Définition de l'unité
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)
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Resp. Sens. 1
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 39(4), 708-711 (2008-10-01)
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