Table 3 Characterization of the powdered tannin-based extracts (PTE) and Phenotan M® (IT)

MT (8.30 g)

91.62 b ± 1.24

8.38 b ± 1.24

87.27 ± 2.28

12.78 ± 2.18

53.88 d ± 1.39

33.38 ± 1.98

MT + NaOH (6.50 g)

93.19 a ± 0.78

6.81 c ± 0.78

98.78 ± 0.58

1.40 ± 0.48

68.31 b ± 1.68

31.29 ± 0.99

MT + NaHSO₃ (7.10 g)

92.01 ab ± 1.51

7.98 bc ± 1.51

97.16 ± 1.36

2.84 ± 1.36

63.49 c ± 1.84

34.79 ± 1.88

IT (6.00 g)

88.45 c ± 1.47

11.55 a ± 1.47

96.55 ± 1.58

3.63 ± 1.07

77.73 a ± 0.65

20.05 ± 0.73

F-ratio

17.21

17.21

–

–

282.28

–

p-value

 < 0.0001

 < 0.0001

–

–

 < 0.0001

–

n

34

34

30

31

29

32