Table 1 Antioxidant activity of Guibourtia tessmanii J. Léonard extracts by DPPH and ABTS methods

Guibourtia tessmanii

Water-acetone extract

^a6.92 ± 0.48

^a4.13 ± 0.54

Water-ethanol extract

^a7.74 ± 0.63

^a4.02 ± 0.79

Water extract

^b16.64 ± 0.20

^b10.54 ± 0.52

Fraction Gt F₁

^a7.26 ± 0.50

^a3.60 ± 0.30

Fraction Gt F₂

^a7.22 ± 0.00

^a3.26 ± 0.40

Fraction Gt F₃

^a8.50 ± 1.10

^a4.50 ± 0.60

Fraction Gt F₄

^b15.00 ± 2.00

^b12.60 ± 1.00

Standards

Vitamin C

^a7.12 ± 0.60

^a5.01 ± 0.55

Butylated Hydroxyanisole

^a6.59 ± 0.30

^a4.26 ± 0.25