Type of extraction

Clover species

White

Red

Arrowleaf

Mean

Witness

2.25 ± 0.57^aA

2.25 ± 0.57^aA

2.25 ± 0.57^aA

2.25

Infusion

1.89 ± 0.25^aAB

1.71 ± 0.23^bB

2.15 ± 0.26^aA

1.93

Maceration

1.33 ± 0.17^bB

2.41 ± 0.25^aA

2.02 ± 0.20^aA

1.92

Alcoholic

1.76 ± 0.20^abA

0.45 ± 0.12^cB

0.85 ± 0.14^bB

1.02

Mean

1.81

1.70

1.82