Modified amylases, nucleic acids encoding those amylases and uses thereof

A non-naturally occurring nucleic acid encoding a polypeptide comprising an amino acid sequence having (a) at least 95% identity with SEQ ID NO:

• 1 or (b) at least 95% identity with amino acids 1-429 of SEQ ID NO:
• 1, wherein the polypeptide includes at least one substitution of the amino acid residue at a position corresponding to a position of SEQ ID NO:
• 1 selected from the group consisting of 4, 13, 33, 34, 42, 70, 71, 87, 99, 100, 108, 113, 121, 131, 134, 135, 141, 153, 157, 158, 160, 161, 166, 170, 171, 178, 179, 184, 188, 198, 199, 221, 223, 238, 270, 277, 290, 307, 315, 334, 335, 342, 343, 372, 392, 398, 399, 405, 415 and 425, and wherein the polypeptide is a non maltogenic exoamylase.