42395
Tannase from Aspergillus ficuum
powder, white, ≥150 U/g
Synonym(s):
Tannin acyl Hydrolase
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About This Item
Specific activity:
≥150 U/g
Biological source:
Aspergillus sp. (A. ficuum)
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
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
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.
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)
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Storage Class
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
Regulatory Information
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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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