Figure 3From: Enzymatic monitoring and control of a two-phase batch digester leaching system with integrated anaerobic filterTime course of the enzyme activity of hydrolases in the effluent of the percolators. (a) Values of xylanase, cellulase, and amylase activities. (b) Values of aminopeptidase and protease activities. The data points are arithmetic means of two independent experiments, while the error bars denote the standard deviation.Back to article page