Research Article
Screening of Bacterial Strains for Polygalacturonase Activity: Its Production by Bacillus sphaericus (MTCC 7542)
Table 4
Effect of various nitrogen sources on PGase production from Bacillus sphaericus.
| Nitrogen source | Enzyme activity (mol min-1 mL-1) | Relative activity (%) |
| (NH4)2SO4 | | 62.6 | (NH4)NO3 | | 80.2 | NH4Cl | | 95.9 | (NH4)2SO47H2O | | 19.5 | Ca(NO3)2 | | 28.3 | KNO3 | | 37.6 | NaNO3 | | 40.7 | (NH4)H2PO4 | | 52.9 | Urea | | 26.9 | Casein hydrolysate | | 78.6 | YE | | 93.3 | CH+YE (control) | | 100.0 |
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Values are mean S.D. of 3 replicates.
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