Table 3. | Effect of different MnSO4 concentration on citric acid fermentation and culture's comparison for different variables. |
Parametric variables |
MnSO4 concentration (a x 10-5M) |
|||||||||||
1.0 x 10-6 |
2.0 x 10-6 |
3.0 x 10-6 |
4.0 x 10-6 |
|||||||||
NIAB-280 |
NGGCB101 |
Zowang-12 |
NIAB-280 |
NGGCB101 |
Zowang-12 |
NIAB-280 |
NGGCB101 |
Zowang-12 |
NIAB-280 |
NGGCB101 |
Zowang-12 |
|
Total acid (g/l) Citric acid (g/l) Dry cell mass (g/l) Sugar used (g/l) Sp. Productivity Morphology Pellet diameter (mm2) Peak day of product formation |
90.20 81.12 17.50 92.65 0.875
1.05
|
95.44 89.67 14.55 94.50 0.898
1.75
|
92.64 82.24 17.50 108.50 0.852
2.52
|
82.85 73.22 15.50 80.55 0.567
-
|
125.04 119.60 13.50 92.50 0.928
1.55
|
94.60 83.25 16.50 118.50 0.872
-
|
75.42 65.44 12.00 76.52 0.459
-
|
105.45 99.67 14.75 88.00 0.878
1.40
|
82.30 73.20 14.00 124.55 0.812
-
|
69.96 58.98 8.50 69.65 0.426
-
|
90.02 78.62 12.50 84.20 0.760
1.25
|
71.50 68.15 12.65 128.50 0.782
-
|
Initial
sugar concentration 150 g/l, initial pH 6.0, aeration rate 1.0l/l/min,
Incubation temperature 30°C. All the results are sum mean of three
parallel replicates. MnSO4 concentrations were added at
the time of mycelial inoculation |
|