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Effect of AFPE on MAO-A and MAO-B activity. (A) The MAO-A (circle) and MAO-B (square) enzyme activity was assayed in the absence or presence of the indicated amounts of AFPE. NB. 100 µM AFPE in the reaction mixture corresponds to 23 mg of apple flesh/mL. (B) Data were analyzed according to first order behavior, and the IC50 values were calculated from the slope of the linear regression (r2 = 0.998 for MAO-A and MAO-B).
