Fig. 1 | Scientific Reports

Fig. 1

From: Interlaboratory validation of an optimized protocol for measuring α-amylase activity by the INFOGEST international research network

Fig. 1

Variations in mean enzymatic activities across 13 laboratories using the newly optimized protocol at 37 °C. Samples: (a) human saliva, (b) porcine pancreatin, (c) porcine α-amylase M, and (d) porcine α-amylase S. Scatter plots (markers next to the y-axes) show individual lab means. On the opposite end of the graphs, the half-violin plots (filled curves) represent the data distribution. Box plots: median (thick lines), interquartile range (box), 1.5 × interquartile range (whiskers). Outliers are indicated with open markers on the scatter plots. Black “x” symbols and lines over the boxplots: mean results of all labs and corresponding standard deviations (excluding outliers).

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