Growth media Growth (mg of total protein) Activity (U/gds) PP 0.55±0.01 32±0.9 AD 0.87±0.02 7±0.01 CC 1.4±0.03 102±1.9

Table 2: Effect of different carbon sources (PP: potato peels; AD: rhizomes of Arundo donax; CC biomass of Cynara cardunculus) on A. amylolyticus growth and amylase production after 96 hours of incubation at 60°C in optimal SSF conditions for each substrate. The values are the average of two assays.