13-Hydroxy-9Z,15Z-Octadecadienoic Acid Production by Recombinant Cells Expressing Lactobacillus acidophilus 13-Hydratase
Tóm tắt
Recombinant Escherichia coli cells expressing linoleate 13-hydratase from Lactobacillus acidophilus were permeabilized by treating with 0.2 M NaCl. The optimal conditions for the production of 13-hydroxy-9,15(Z,Z)-octadecadienoic acid (13-HODE) from α-linolenic acid by permeabilized recombinant cells were pH 6.0, 40 °C, 7.5 % (v/v) methanol, 60 g/l permeabilized cells, and 15 g/l α-linolenic acid. Under these conditions, permeabilized cells produced 7.5 g/l 13-HODE after 6 h, with a conversion yield of 50 % (w/w) and a volumetric productivity of 1.25 g/l/h. These values were 161 and 160 % of those obtained by nonpermeabilized cells, respectively. To the best of our knowledge, this is the first report on the process optimization for the biotechnological production of 13-HODE.
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