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Table 2 The variation of the nutrient and TOC concentrations in the mixotrophic and photoautotrophic culture systems

From: Two-stage mixotrophic cultivation for enhancing the biomass and lipid productivity of Chlorella vulgaris

T (d)

NO3-N concentration (mg L−1)

TP concentration (mg L−1)

TOC concentration (mg L−1)

MX

MX-N

MX-C

PA

MX

MX-N

MX-C

PA

MX

MX-N

MX-C

PA

0

47.49 ± 1.07

53.92 ± 1.26

2630.00 ± 13.21

6.00 ± 0.89

4

+ 82.35

6

32.21 ± 1.63

37.33 ± 0.72

37.53 ± 0.49

78.62 ± 0.94

22.61 ± 0.32

24.52 ± 0.36

24.07 ± 0.43

31.96 ± 0.32

9

+ 411.78

+ 0

+ 411.78

+ 0

1002.26 ± 30.50

990.31 ± 74.06

1007.97 ± 13.35

33.80 ± 0.75

16

333.31 ± 3.39

9.78 ± 0.84

387.66 ± 3.97

74.66 ± 0.34

7.04 ± 0.15

16.35 ± 0.15

12.48 ± 1.03

21.23 ± 0.00

968.25 ± 39.40

939.23 ± 31.69

825.40 ± 68.99

124.25 ± 4.67

18

328.86 ± 2.97

3.64 ± 0.58

378.46 ± 3.21

39.05 ± 2.71

4.71 ± 0.43

16.04 ± 0.59

11.91 ± 0.15

16.95 ± 0.73

945.02 ± 16.67

949.05 ± 28.95

602.43 ± 53.98

117.55 ± 4.21