Growth media Growth (mg of total protein) Activity (U/gds)
YN 16.6±0.3 965±9
 SS 26.3±0.6 1904±33
 PP 10.75±0.3 1000±26
AD 9.4±0.2 2126±24
CC 8.7±0.1 575±11
Table 1: Effect of different carbon sources (YN: yeast extract; SS: soluble starch; PP: potato peels; AD: rhizomes of Arundo donax; CC biomass of Cynara cardunculus) on A. amylolyticus growth and amylase production after 24 h of incubation at 60°C in SmF conditions. The values are the average of two assays. Significance was determined by t test for all media versus YN complex medium and for each medium respect to the other media. P resulted <0.01 for all comparison media.