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Chemical and Biological Technologies in Agriculture

Table 2 Antioxidant activity of aqueous and ethanolic extracts determined by DPPH˙ radical-scavenging assay

From: Evaluation of antioxidant activity and total phenol content of Gracilaria bursa-pastoris harvested in Nador lagoon for an enhanced economic valorization

Concentration

mg/mL

Inhibition ratio (%)

Ethanolic extract

Aqueous extract

Ascorbic acid

20 °C

40 °C

20 °C

40 °C

0.32

74

81

61

69

90

0.16

58

67

40

47

81

0.08

42

48

30

38

73

0.04

31

37

26

27

65

0.02

25

30

18

20

42

IC50

0.096

0.085

0.176

0.167

0.028

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