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The aim of this study was to characterize the influence of the aeration conditions on the production of PHB and its molecular mass in a mutant strain of Azotobacter vinelandii (OPN), which carries a mutation on ptsN, the gene encoding enzyme IIANtr, previously shown to increase the accumulation of PHB. Cultures of A. vinelandii wild-type strain OP and its mutant derivative strain OPN were grown in...
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