Skip to main content

Table 2 Elemental composition before and after the combined pretreatment

From: Microalgal lipid production using the hydrolysates of rice straw pretreated with gamma irradiation and alkali solution

Elements (mg/Kg) Untreated 100 kGy + NaOH
Al 156.83 ± 8.12 58.29 ± 5.65
As 1.21 ± 0.03 NDa
Ca 1605.93 ± 21.30 2805.35 ± 123.53
Cd 0.06 ± 0.01 0.07 ± 0.01
Cr 30.44 ± 1.43 14.30 ± 0.36
Cu 2.71 ± 0.06 6.46 ± 0.41
Fe 185.21 ± 6.36 215.27 ± 15.74
K 3743.71 ± 0.32 169.11 ± 12.96
Mg 629.97 ± 7.06 1016.06 ± 46.19
Mn 304.73 ± 12.51 515.47 ± 48.62
Mo 0.33 ± 0.01 NDa
Na 98.70 ± 0.95 383.19 ± 17.76
Ni 2.84 ± 0.19 2.01 ± 0.1
Phosphate 356.86 ± 5.83 73.55 ± 4.95
Pb 3.22 ± 0.02 5.12 ± 1.48
Sulfate 304.12 ± 1.09 277.20 ± 12.93
Zn 38.06 ± 0.43 55.49 ± 3.51
  1. Data are expressed as means of triplicate measurements ± standard deviations
  2. aBelow the detection limit