Table 3 Effect of thermal stability on L-glutaminase activity from Klebsiella pneumoniae
Temperature (℃) | Time of heating | Activity(u/ml) | Recovered activity (%) | Half-life (h) |
|---|---|---|---|---|
20 | 30 60 90 120 150 | 761.8 759.59 750.96 747.37 740.62 | 100 99.7 98.6 98.1 97.2 | 48.6 |
35 | 30 60 90 120 150 | 760.33 752.93 738.48 719.96 695.52 | 99.8 98.8 96.9 94.5 91.3 | 45.6 |
45 | 30 60 90 120 150 | 750 730.4 710.2 690.1 650.5 | 98.5 95.9 93.2 90.6 85.4 | 42.7 |
55 | 30 60 90 120 150 | 740 720 690.3 615.4 590 | 97.1 94.6 90.6 80.8 77.4 | 38.7 |