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Time profiles of ADD fermentation by strain JC-12p261 (hollow) and the recombinant strain JC-12yodC-katA (solid) in a 5 L fermentor. (A) the cell growth; (B) the residual phytosterol; (C) the ADD production. N, the number of CFU (colony forming units) per mL of culture broth. 20 g/L phytosterol was used as a substrate to carry out the fermentation. The results are shown in biological triplicate. Error bars showed standard deviations.
