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Table 2 Relative levels of inhibition/activation of poly-dHbS-M by fractionated leaf extracts of A. occidentale, P. guajava, and T. catappa

From: Polymerization of deoxygenated sickle hemoglobin in the presence of fractionated leaf extracts of Anacardium occidentale, Psidium guajava, and Terminalia catappa

[Extract fraction]

Relative inhibition/activation of polymerization (%)

30 s

60 s

90 s

120 s

150 s

180 s

A. occidentale petroleum ether

40 mg%

9.76 ± 1.23

4.83 ± 0.73

5.76 ± 1.10

0.25 ± 0.05↑

0.31 ± 0.02↑

1.06 ± 0.02↑

60 mg%

1.74 ± 0.02

7.10 ± 1.11

14.57 ± 1.12

16.49 ± 1.22

18.39 ± 1.11

18.65 ± 1.10

80 mg%

0.38 ± 0.01

11.68 ± 0.89

10.43 ± 1.08

0.66 ± 0.01

1.43 ± 0.02↑

2.60 ± 0.88↑

A. occidentale n-hexane

40 mg%

3.70 ± 0.04

18.15 ± 1.21

2.96 ± 0.03

11.48 ± 1.10↑

28.52 ± 2.80↑

41.48 ± 3.87↑

60 mg%

7.77 ± 1.56

25.19 ± 2.56

7.04 ± 1.16

0.37 ± 0.01↑

15.19 ± 1.80↑

32.59 ± 3.67↑

80 mg%

4.81 ± 1.65

18.52 ± 2.01

27.41 ± 2.98

18.51 ± 2.07

3.33 ± 0.98

9.26 ± 1.67↑

A. occidentale chloroform

40 mg%

87.80 ± 4.90↑

59.83 ± 5.91↑

38.69 ± 2.10↑

31.25 ± 2.20↑

35.84±3.00↑

38.69 ± 4.01↑

60 mg%

31.25 ± 3.67↑

29.17 ± 3.23↑

17.55 ± 1.10↑

20.24 ± 1.90↑

31.67 ± 3.00↑

29.76 ± 2.67↑

80 mg%

16.97 ± 2.88↑

24.41 ± 3.11↑

46.43 ± 3.56

46.42 ± 2.56

32.31 ± 2.54

27.38 ± 2.56

A. occidentale ethylacetate

40 mg%

51.11 ± 4.98

90.00 ± 5.78

94.07 ± 6.98

81.85 ± 5.34

82.96 ± 4.87

79.26 ± 4.98

60 mg%

38.51 ± 2.80

66.67±3.48

67.04 ± ± 3.95

52.96 ± 3.01

48.88 ± 3.89

43.71 ± 2.69

80 mg%

13.33 ± 1.80

22.22 ± 2.00

5.18 ± 1.01↑

17.41 ± 1.90↑

31.85 ± 2.50↑

26.67 ± 2.11↑

A. occidentale residual aqueous

40 mg%

36.64 ± 3.00↑

101.13 ± 7.9↑

160.61 ± 8.9↑

129.53 ± 7.1↑

87.03 ± 4.10↑

29.93 ± 2.78

60 mg%

20.59 ± 2.00↑

119.63 ± 9.7↑

103.75 ± 7.9↑

98.44 ± 5.40↑

363.18 ± 11.8

612.46 ± 15.9

80 mg%

9.28 ± 1.76↑

105.26 ± 8.6↑

120.11 ± 8.9↑

43.34 ± 2.52

210.72 ± 10.7

563.95 ± 13.8

P. guajava petroleum ether

40 mg%

72.62 ± 3.50↑

73.22 ± 2.89↑

56.25 ± 4.97↑

67.86 ± 3.55↑

84.06 ± 4.01↑

103.27 ± 7.4↑

60 mg%

63.10 ± 4.10↑

70.54 ± 4.92↑

51.48 ± 3.87↑

58.34 ± 2.98↑

67.69 ± 4.91↑

75.30 ± 3.77↑

80 mg%

70.83 ± 3.80↑

75.16 ± 3.78↑

49.99 ± 2.99↑

40.48 ± 3.32↑

42.39 ± 4.11↑

58.93 ± 4.54↑

P. guajava n-hexane

40 mg%

38.68 ± 2.98

38.31 ± 3.00

34.71 ± 2.09

28.33 ± 2.98

27.15 ± 2.67

27.54 ± 2.67

60 mg%

16.00 ± 1.76

23.90 ± 1.98

25.54 ± 1.77

25.39 ± 2.00

25.79 ± 2.08

34.53 ± 2.33

80 mg%

22.60 ± 2.76

28.56 ± 2.78

34.23 ± 3.03

43.94 ± 3.66

49.57 ± 3.89

51.73 ± 4.03

P. guajava chloroform

40 mg%

1.10 ± 0.09↑

2.19 ± 0.86↑

5.37 ± 0.98

11.51 ± 1.09

23.72 ± 2.04

29.10 ± 2.54

60 mg%

20.56 ± 2.40↑

7.64 ± 0.99

22.00 ± 2.03

25.87 ± 1.78

24.23 ± 2/12

19.59 ± 2.03

80 mg%

14.81 ± 1.10↑

5.08 ± 0.89↑

10.42 ± 1.21

15.85 ± 1.78

23.13 ± 2.21

30.84 ± 2.78

P. guajava ethylacetate

40 mg%

4.31 ± 0.09↑

14.75 ± 1.02

31.03 ± 2.45

45.10 ± 3.11

55.01 ± 3.08

67.73 ± 3.98

60 mg%

17.53 ± 1.60↑

11.84 ± 1.22↑

5.60 ± 0.98↑

8.59 ± 1.12↑

7.76 ± 1.11↑

5.68 ± 0.93↑

80 mg%

9.93 ± 1.02

15.93 ± 1.65

31.07 ± 2.34

31.06 ± 2.01

31.32 ± 2.33

37.00 ± 3.09

P. guajava residual aqueous

40 mg%

22.01 ± 1.98

16.46 ± 1.56

17.29 ± 1.45

17.57 ± 1.87

33.18 ± 2.45↑

69.53 ± 5.34↑

60 mg%

18.38 ± 1.78

3.86 ± 1.32

3.54 ± 0.89

0.83 ± 0.08

57.40 ± 2.78↑

100.73 ± 8.8↑

80 mg%

8.08 ± 0.78↑

14.82 ± 1.78↑

12.84 ± 1.04↑

32.38 ± 2.02↑

100.53 ± 8.5↑

143.88 ± 9.8↑

T. catappa petroleum ether

40 mg%

12.63 ± 1.40↑

44.78 ± 3.59↑

40.91 ± 4.0↑

22.06 ± 2.11↑

6.39 ± 1.23↑

2.02 ± 0.21↑

60 mg%

27.61±2.20↑

57.07 ± ± 4.78↑

55.22 ± 5.2↑

24.25 ± 2.19↑

11.62 ± 1.05

39.90 ± 2.56

80 mg%

9.43 ± 0.56↑

45.96 ± 4.98↑

26.43 ± 3.1↑

2.18 ± 0.09

28.46 ± 1.45

49.50 ± 3.67

T. catappa n-hexane

40 mg%

11.07 ± 1.9↑

5.81 ± 1.09↑

9.91 ± 1.08

8.88 ± 0.95

9.21 ± 0.17

9.21 ± 0.95

60 mg%

0.61 ± 0.03↑

8.23 ± 0.85↑

5.41 ± 0.09

11.00 ± 0.87

18.31 ± 2.01

6.50 ± 0.98

80 mg%

9.46 ± 0.97↑

19.16 ± 1.56↑

6.21 ± 1.54↑

5.99 ± 1.04

15.06 ± 1.67

16.81 ± 2.45

T. catappa chloroform

40 mg%

9.46 ± 1.06↑

0.96 ± 0.02

1.35 ± 0.08↑

1.46 ± 0.09

9.87 ± 0.89↑

8.33 ± 1.02↑

60 mg%

7.29 ± 0.09↑

11.13±1.78

3.18 ± 0.45

1.46 ± 0.06

0.09 ± 0.001↑

1.89 ± 0.08↑

80 mg%

0.19 ± 0.09↑

16.02 ± 1.98

6.64 ± 1.07

8.32 ± 1.44

1.57 ± 0.07

6.44 ± 0.98

T. catappa ethylacetate

40 mg%

2.53 ± 0.88

8.91 ± 1.05

2.05 ± 0.18

13.23 ± 2.01↑

12.21 ± 1.05↑

19.55 ± 2.01↑

60 mg%

18.76 ± 1.78

10.34 ± 0.98

13.85 ± 0.88

2.74 ± 0.31

5.23 ± 0.55

11.22 ± 0.67

80 mg%

24.72 ± 2.01

34.13 ± 2.02

40.13 ± 3.11

39.11 ± 2.11

44.33 ± 3.02

41.19 ± 2.67

T. catappa residual aqueous

40 mg%

17.69 ± 1.6↑

22.80 ± 1.01↑

23.82 ± 1.2↑

15.83 ± 0.78↑

42.94 ± 3.18↑

46.95 ± 3.55↑

60 mg%

9.91 ± 1.03

7.39 ± 0.98

3.07 ± 0.56

5.91 ± 0.76

32.43 ± 3.67↑

56.38 ± 4.01↑

80 mg%

2.19 ± 0.86

17.09 ± 1.56

13.51 ± 1.11

17.61 ± 1.14

22.17 ± 1.45↑

53.56 ± 3.86↑

  1. The results are mean (X) ± S.D of three (n = 3) determinations; mg% = mg/100 mL
  2. ↑: Activation of poly-dHbS-M