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Journal of Genetic Engineering and Biotechnology

Table 6 Effect of different nitrogen sources on l-glutaminase production by S. pseudogriseolus ZHG20

From: Application of statistical methodology for the optimization of l-glutaminase enzyme production from Streptomyces pseudogriseolus ZHG20 under solid-state fermentation

NS (0.2 g)

EA (U/gds)

Specific activity U/mg

Ammonium sulfate

553.69 ± 1.94

6.50 ± 0.12

Potassium nitrate

403.96 ± 1.35

4.95 ± 1.23

Urea

390.52 ± 1.51

4.72 ± 1.03

Corn steep liquor

656.41 ± 1.25

7.73 ± 1.98

Yeast extract

595.87 ± 1.71

6.36 ± 1.02

  1. NS nitrogen sources, EA enzyme activity (l-glutaminase)
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