Abstract

The use of peptide hydrolase (EC 3.4.13.1) fromXanthomonas rubrilineans for synthesis of the antibiotic cephalexin from 7-aminodesacetoxycephalosporanic acid was studied. The optimum conditions for production of cephalexin were determined, and the yield exceeded 80%. A method for monitoring the synthesis of this antibiotic by means of a conventional amino acid analyzer is proposed.

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