|
Cell count
|
Optical density
|
Dry weight of cells
|
Lipid productivity
|
---|
|
(×106/ml)
|
(OD680)
|
(g L−1)
|
(g L−1 day−1)
|
---|
Control
|
9.93 ± 0.25
|
0.77 ± 0.04
|
0.61 ± 0.03
|
0.23 ± 0.0
|
75
|
9.07 ± 0.45a*
|
0.71 ± 0.03a*
|
0.57 ± 0.06
|
0.24 ± 0.0a*
|
50
|
8.23 ± 0.45a*b*
|
0.65 ± 0.02a*b*
|
0.53 ± 0.05a*
|
0.30 ± 0.0a*b*
|
25
|
7.86 ± 0.45a*b*
|
0.63 ± 0.02a*b*
|
0.48 ± 0.02a*b*
|
0.37 ± 0.0a*b*c*
|
Temperature°C
| | | | |
15
|
6.87 ± 0.55
|
0.53 ± 0.03
|
0.42 ± 0.05
|
0.31 ± 0.0
|
20
|
7.57 ± 0.35a
|
0.59 ± 0.02a
|
0.45 ± 0.04
|
0.35 ± 0.01a
|
25
|
8.23 ± 0.25ab
|
0.66 ± 0.01ab
|
0.50 ± 0.04a
|
0.37 ± 0.01ab
|
30
|
8.67 ± 0.06ab
|
0.71 ± 0.03abc
|
0.53 ± 0.02ab
|
0.43 ± 0.0abc
|
35
|
8.57 ± 0.25ab
|
0.72 ± 0.02abc
|
0.51 ± 0.02a
|
0.41 ± 0.01abcd
|
- Mean ± SE (n = 3) followed by different letters indicate significant difference at P ≤ 0.05, according to one-way analysis of variance (ANOVA) and the LSD (least significant difference) test (a*: significant with control at ≤0.05, b*: significant with 75% N at ≤0.05, c*: significant with 50% N at ≤0.05, a: significant with 15°C at ≤0.05, b: significant with 20°C at ≤0.05, c: significant with 25°C at ≤0.05, d: significant with 30°C at ≤0.05).