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Table 4 Element content in the biomass ashes of Scenedesmus sp.

From: Semi-quantitative determination of ash element content for freeze-dried, defatted, sulfated and pyrolysed biomass of Scenedesmus sp.

Elements (% by mass)Freeze-driedDefattedPyrolyzedSulfated
MeanSDMeanSDMeanSDMeanSD
O40.25a0.2739.32a0.4840.30a0.3341.56a4.04
Mg6.16a0.348.46b0.357.10a,c0.258.46b,c1.76
P20.84a0.3319.27b0.4520.74a0.468.58c1.50
Sni ni ni 11.511.76
K7.61a0.197.10b0.197.55a,b0.202.73c0.65
Ca8.65a0.267.73b0.187.91b0.293.12c0.60
Fe11.01a0.7111.32a0.2510.50a0.6715.43b3.45
Co1.69a0.311.94a0.461.53a0.302.51a1.57
Br2.14a0.093.21a0.552.34a0.474.69a3.95
  1. Different letters indicate significant difference (p < 0.05) by Tukey test
  2. ni not identified