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Table 3 Relationship between cell concentration (1.2, 0.8 and 0.5 g/L) and chitosan dosage during microalgal biomass harvesting (mean ± SD)

From: Microalgae Chlorella vulgaris biomass harvesting by natural flocculant: effects on biomass sedimentation, spent medium recycling and lipid extraction

Biomass concentration in dried weight, g/L Dose, g/L Harvest efficiency,  %
1.2 1.000 98.3 ± 1.3
0.500 94.7 ± 1.0
0.250 91.9 ± 2.6
0.125 86.8 ± 2.4
0.050 71.3 ± 5.4
0.010 58.8 ± 4.6
0.8 1.000 98.0 ± 0.9
0.500 97.5 ± 2.3
0.250 98.7 ± 1.2
0.125 91.2 ± 0.9
0.050 80.8 ± 2.6
0.010 65.4 ± 5.0
0.5 1.000 98.9 ± 0.4
0.500 97.5 ± 1.9
0.250 96.3 ± 0.5
0.125 94.6 ± 1.6
0.050 92.3 ± 2.5
0.010 78.9 ± 4.3