Costus afer Possesses Carbohydrate Hydrolyzing Enzymes Inhibitory Activity and Antioxidant Capacity In Vitro

Figure 2

Inhibitory effect of solvent extracts from different parts of C. afer on α-amylase activities. Letters a, b, c, d, and e compare different solvents extracts at the same concentration and bars designated with different letters are significantly different from each other at (Tukey HSD test). α, β, and δ compare the effect of concentration of the same solvent extract on α-amylase inhibitory activity and bars designated with different letters are significantly different from each other at (Tukey HSD test).

(a)

(b)

(c)