A variant of a parent Bacillus stearothermophilus alpha amylase, wherein the variant has an amino acid sequence which has at least 95% homology to the parent Bacillus stearothermophilus alpha amylase and comprises {HEAD ~ a deletion} of {TAIL ~ amino acids} 179 an 180, using SEQ ID NO:3 for numbering, and wherein the variant has alpha amylase activity 
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A variant of a parent Bacillus stearothermophilus alpha amylase , wherein the variant has an amino acid sequence which has at least 95 % homology to the parent Bacillus stearothermophilus alpha amylase and comprises { HEAD ~ a deletion } of { TAIL ~ amino acids } 179 an 180 , using SEQ ID NO:3 for numbering , and wherein the variant has alpha amylase activity
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