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Tannase Production by Aspergillus niger
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A method for assay of microbial tannase (Tannin acyl hydrolase) based on the formation of chromogen between gallic acid and rhodanine is reported. Maximum Tannase production occurred in the culture broth containing 1‐2% (w/v) tannic acid and 0.05 – 0.1% (w/v) glucose. The pH, incubation period, temperature and Glucose concentration optima of Tannase production was found at 5.5, 36 h, 35°C and 0.5% respectively. These properties make the enzyme suitable for pollution control and bioprocess industry. This assay is very simple, reproducible, and very convenient, and with it Tannase activity can be measured in relation to the growth of the organism. Aspergillus niger exhibited higher enzyme activity showing about 65 mole percent conversion respectively after a 36 h incubation period. The assay is complete in a short time, very convenient and reproducible.
Title: Tannase Production by Aspergillus niger
Description:
A method for assay of microbial tannase (Tannin acyl hydrolase) based on the formation of chromogen between gallic acid and rhodanine is reported.
Maximum Tannase production occurred in the culture broth containing 1‐2% (w/v) tannic acid and 0.
05 – 0.
1% (w/v) glucose.
The pH, incubation period, temperature and Glucose concentration optima of Tannase production was found at 5.
5, 36 h, 35°C and 0.
5% respectively.
These properties make the enzyme suitable for pollution control and bioprocess industry.
This assay is very simple, reproducible, and very convenient, and with it Tannase activity can be measured in relation to the growth of the organism.
Aspergillus niger exhibited higher enzyme activity showing about 65 mole percent conversion respectively after a 36 h incubation period.
The assay is complete in a short time, very convenient and reproducible.
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