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Merck
모든 사진(1)

주요 문서

42395

Sigma-Aldrich

Tannase from Aspergillus ficuum

powder, white, ≥150 U/g

동의어(들):

Tannin acyl Hydrolase

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About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC 코드:
12352204
NACRES:
NA.54

생물학적 소스

Aspergillus sp. (A. ficuum)

Quality Level

양식

powder

특이 활성도

≥150 U/g

불순물

25 mM potassium phosphate
250 mM NaCl
50% glycerol

색상

white

저장 온도

2-8°C

일반 설명

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.

애플리케이션

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

생화학적/생리학적 작용

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.

단위 정의

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)

픽토그램

Health hazard

신호어

Danger

유해 및 위험 성명서

예방조치 성명서

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

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


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문서 라이브러리 방문

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
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
Arijit Jana et al.
Applied biochemistry and biotechnology, 167(5), 1254-1269 (2012-01-25)
Tannase production by newly isolated Penicillium purpurogenum PAF6 was investigated by 'one variable at a time' (OVAT) approach followed by response surface methodology (RSM). Tannin-rich plant residues were used as supporting solid substrate and sole carbon source and, among them
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
Optimization of gallic acid production from Terminalia chebula by Aspergillus niger
N. Lokeswari, K. Jaya Raju
E-Journal of Chemistry, 4, 287-293 (2007)

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