Fig. 1

Change in PP1 activity. One gram of blue-green algae supplement powder was dissolved in water and sonicated on ice, centrifuged, and supernatant was used to determine the presence of protein phosphatase 1 (PP1) inhibitors. The y-axis is the log (exposed PP1 rate/control PP1 rate) and the x-axis is the volume of extracted water from the powder in μL tested. Each protein phosphatase inhibition assay (PPIA, n = 4), analyzed in triplicate with a substrate blank, is represented as one point, and the linear model with a 95 % confidence interval is displayed with the data. As the amount of extract increases, the activity of PP1 significantly decreases compared to control, with a p value of 5.9 × 10⁻⁸