Twenty Traditional Algerian Plants Used in Diabetes Therapy as Strong Inhibitors of α-Amylase Activity

Figure 2

Lineweaver-Burk plots of inhibition of α-amylase according to the total phenol concentration of the methanolic fraction plant of (a) Cistus; (b) Equisetum arvense (the grains); (c) Matricaria pubescens; (d) Oudneya africana (the pods); (e) Salvia officinalis; (f) Thapsia garganica. Activity was determined by formation of maltose at several substrate concentrations ranging from 0.2 to 0.6 g/L and three concentrations of inhibitors I1, I2, and I3 ranging from 88 to 258 μg/mL.

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