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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
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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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