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42395

Sigma-Aldrich

Tannase from Aspergillus ficuum

powder, white, ≥150 U/g

Synonim(y):

Tannin acyl Hydrolase

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About This Item

Numer CAS:
Numer WE:
Numer MDL:
Kod UNSPSC:
12352204
NACRES:
NA.54

pochodzenie biologiczne

Aspergillus sp. (A. ficuum)

Poziom jakości

Formularz

powder

aktywność właściwa

≥150 U/g

zanieczyszczenia

25 mM potassium phosphate
250 mM NaCl
50% glycerol

kolor

white

temp. przechowywania

2-8°C

Opis ogólny

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.

Zastosowanie

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

Działania biochem./fizjol.

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.

Definicja jednostki

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)
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Piktogramy

Health hazard

Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

Zwroty wskazujące środki ostrożności

Klasyfikacja zagrożeń

Resp. Sens. 1

Kod klasy składowania

11 - Combustible Solids

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


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Certyfikaty analizy (CoA)

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