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This study reports the purification and biochemical characterization of a novel maltotetraose-forming-α-amylase from Pseudomonas stutzeri AS22, designated PSA. The P. stutzeri α-amylase (PSA) was purified from the culture supernatant to homogeneity by Sepharose mono Q anion exchange chromatography, ultrafiltration and Sephadex G-100 gel filtration, with a 37.32-fold increase in specific activity,...
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