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A two-step strategy involving DEAE-cellulose and POROS PI anion exchange chromatography has been developed for rapid purification of acetolactate decarboxylase (ALD) from Leuconostoc lactis NCW1. This results in 5333-fold purification with a yield of 30%. Purified ALD is a dimer of 49-kDa subunits, has a pH optimum of 6.0, a pI of 4.2 and its activity is independent of metals or branched chain amino...
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