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Table 1 Effectiveness of acetylcholine on Chlorella sorokiniana U2-9

From: Simultaneous improvement in production of microalgal biodiesel and high-value alpha-linolenic acid by a single regulator acetylcholine

  ACh (μg L −1 )
  0 0.125 0.25 0.5 1 5 10
Dry weight (gL−1) 2.16 ± 0.2 2.2 ± 2 2.2 ± 0.2 2.4 ± 0.17 2.43 ± 0.2 2.73 ± 0.1 2.66 ± 0.15
Total lipid content (mg g−1 of dry weight) 214.3 ± 14 223.3 ± 16 231.6 ± 12 252 ± 10 296 ± 26 303 ± 24 190 ± 12
Lipid productivity (mgL−1 day−1) 46.4 ± 6 49.3 ± 7 50.8 ± 4 60.5 ± 4 72.4 ± 8 82.8 ± 6 50.7 ± 5
  1. Note: Acetylcholine was more efficient at doses of 0.5 to 5 μg L−1, but it exposed negative effects on lipid content and lipid productivity at 10 μg L−1. ACh was added at the initial phase of algal growth. All data were given as mean ± standard error (n = 3) of three separated tests.