Fig. 1. Endogenous activity of a-glucosidase and a-amylase in different kinds of flour. (A) Activity of a-amylase. (B) Activity of a-glucosidase. (C) Measured enzymatic activity of aglucosidase/
amyloglucosidase after addition of fungal amyloglucosidase to the control flour mixture (rice flour to corn flour 2:1) with linear regression (R2 ¼ 0.9848). Means with
standard deviation (n ¼ 4). Different letters indicate significant differences between means (ANOVA, p < 0.05). * Below detection limit. QF: Quinoa white flour; QWG: Quinoa whole
grain flour.