|
|
Table 4. Effect of nitrogen
sources on production of FPase, cell mass and extracellular protein
production relative to control which contained a-cellulose -Dubos salts
+0.2% yeast extract +0.1% sodium nitrate. Control was composed of Dubos
salts medium +0.2% yeast extract and supported 35.2 IU/ I/h, 21.02 mg/I/h
and |
|
Nitrogen |
Relative values (%) of control |
||
|
|
FPase |
Cell mass |
Extracelluar |
| Dubos medium |
|
|
|
| Sodium nitrate in the control |
100 |
100 |
100 |
| Sodium nitrate (8-fold) |
250 |
150 |
175 |
| Potasium nitrate (2-fold) |
125 |
125 |
135 |
| Urea |
85 |
78 |
80 |
| Ammonium chloride |
30 |
25 |
35 |
| Ammonium sulphate |
45 |
30 |
40 |
| Diammonium hydrogen phosphate |
70 |
65 |
75 |
| Sodium glutamate |
80 |
85 |
96 |
| Ammonium nitrate |
90 |
95 |
80 |
| Corn steep liquor |
45 |
60 |
70 |
|
|