| 摘要 |
<p>Mutated alpha -amylases having a sequence derived from the sequence of the liquefied alkaline alpha -amylase represented by SEQ ID NO:1 by, at least, deletion or substitution by another arbitrary amino acid residue of the methionine residue at the 202-position or a position homologous thereto; and detergent compositions containing the same. These mutated alpha -amylases have the optimum pH value in the alkaline region, an excellent alpha -amylase activity and a high and sustained tolerance against oxidizing agents. These properties make them useful as a component of detergent compositions containing, in particular, bleaching agents and oxidizing agents.</p> |
