Abstract
The alpha-amylase gene from Bacillus amyloliquefaciens MDC1974 strain was molecularly cloned into the E. coli/B. subtilis pBE-S shuttle vector and subsequently expressed extracellularly by the recipient strain Bacillus subtilis RIK1285, which exhibited low protease activity. As a result of optimizing fermentation conditions, a secretion of alpha-amylase with an activity of 1400 units per mL was achieved.
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