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Literature summary for 3.1.1.20 extracted from

  • Mahapatra, S.; Banerjee, D.
    Extracellular tannase production by endophyitc Hyalopus sp (2009), J. Gen. Appl. Microbiol., 55, 255-259.
    View publication on PubMed

Application

Application Comment Organism
industry in a short period of time the organism produces a large amount of tannase in an agricultural byproduct and cheap substrate like wheat bran, so in future, this organism can be applied for commercial tannase production. Broad range of pH and temperature stability of the enzyme can be exploited in various ways for pollution control in the leather industry and bioprocess industry in future Hyalopus sp.

Organism

Organism UniProt Comment Textmining
Hyalopus sp.
-
-
-
Hyalopus sp. DSF3
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partially purified by acetone precipitation, 2.33fold with 79.06% recovery Hyalopus sp.

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.7
-
fermented broth, in 0.2 M acetate buffer, pH 5.5, at 40°C, for 30 min Hyalopus sp.
6.3
-
2.33fold purified enzyme, in 0.2 M acetate buffer, pH 5.5, at 40°C, for 30 min Hyalopus sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
tannic acid + H2O
-
Hyalopus sp. gallic acid + D-glucose
-
?
tannic acid + H2O
-
Hyalopus sp. DSF3 gallic acid + D-glucose
-
?

Synonyms

Synonyms Comment Organism
tannase
-
Hyalopus sp.

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
-
Hyalopus sp.

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50 60 60°C: heat stable for 10 min. 50°C: heat stable for 30 min, loses only 4% of its activity even after 60 min Hyalopus sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
-
Hyalopus sp.

pH Stability

pH Stability pH Stability Maximum Comment Organism
5 8
-
Hyalopus sp.

Expression

Organism Comment Expression
Hyalopus sp. enzyme production is depleted at higher tannic acid concentrations down
Hyalopus sp. organism in liquid submerged fermentation produces maximum extracellular tannase at the end of its exponential phase after 120 h. Wheat bran supports tannase production. 2.5% tannic acid is most suitable for maximum tannase synthesis through solid state fermentation up