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Table 1 Consumption of nutrients in the media and the protein content of microalgae

From: Effects of C/N ratio on the growth and protein accumulation of heterotrophic Chlorella in broken rice hydrolysate

 

Biomass productivity (g/L/day)

Reducing sugar consumption rate (%)

TOC consumption rate (%)

TN consumption rate (%)

Protein content (%)

Protein productivity(g/L/day)

Growth yield (g biomass/g TOC)

BRH supplemental amount

 

5%

0.34 ± 0.01c

100 ± 0.00a

90.02 ± 0.06a

48.53 ± 0.38d

58.51 ± 0.01a

0.20 ± 0.01c

1.23 ± 0.05a

10%

0.58 ± 0.02b

100 ± 0.00a

86.61 ± 0.03ab

74.76 ± 0.99b

56.25 ± 0.50b

0.33 ± 0.01b

1.06 ± 0.05b

15%

1.00 ± 0.01a

98.86 ± 0.00ab

87.46 ± 0.30b

79.36 ± 0.52a

40.64 ± 0.01d

0.40 ± 0.01a

1.22 ± 0.01a

20%

1.08 ± 0.06a

87.75 ± 5.17b

76.22 ± 1.64c

78.10 ± 0.27ab

38.41 ± 0.15e

0.42 ± 0.03a

1.17 ± 0.07ab

25%

1.06 ± 0.10a

71.19 ± 2.93c

23.91 ± 0.56d

66.81 ± 2.11c

42.55 ± 0.50c

0.45 ± 0.06a

1.19 ± 0.14ab

C/N ratio

 

5:1

0.94 ± 0.02bc

100 ± 0.00a

81.53 ± 0.19b

14.20 ± 2.29f

58.26 ± 0.14c

0.55 ± 0.01a

1.28 ± 0.04ab

7:1

0.96 ± 0.02ab

100 ± 0.00a

84.25 ± 1.03a

40.21 ± 0.77e

57.31 ± 0.06d

0.55 ± 0.01a

1.29 ± 0.02ab

9:1

0.93 ± 0.02b,c

100 ± 0.00a

84.12 ± 0.28a

56.78 ± 0.51c

59.71 ± 0.11b

0.56 ± 0.01a

1.22 ± 0.03ab

12:1

0.90 ± 0.02bc

100 ± 0.00a

83.74 ± 0.15a

74.20 ± 0.28a

61.56 ± 0.23a

0.54 ± 0.02ab

1.19 ± 0.02b

19:1

1.00 ± 0.03a

100 ± 0.00a

84.04 ± 0.42a

77.87 ± 0.88a

38.73 ± 0.13e

0.39 ± 0.01c

1.29 ± 0.06ab

23:1

0.89 ± 0.02c

88.27 ± 0.01b

76.23 ± 0.39c

74.84 ± 0.80a

32.29 ± 0.31f

0.29 ± 0.01d

1.25 ± 0.04ab

32:1

0.68 ± 0.02d

62.29 ± 0.75c

55.75 ± 0.39d

67.93 ± 1.57b

27.61 ± 0.36 g

0.19 ± 0.01e

1.32 ± 0.06a

48:1

0.24 ± 0.01e

23.69 ± 0.20d

23.86 ± 0.64e

52.15 ± 1.40d

37.92 ± 0.47e

0.07 ± 0.01f

1.09 ± 0.04c

  1. Results are expressed as mean ± standard deviations (n = 3). Different lowercase superscript letters in the same column represent statistical difference (P < 0.05) on a particular property