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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