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. 2021 May 24;11(6):295. doi: 10.1007/s13205-021-02773-0

Fig. 1.

Fig. 1

The effect of different types of basic media on the synthesis of D-PA. a Evaluation of the optimal basal culture medium among SF, SMAC, HM, NBS, TB, LB, M-1, M-9 (S), M-9 (G) and M-9 (M) in shaking flask culture. b Selection of optimal carbon and nitrogen sources in shaking flask culture. Data are expressed as the mean ± standard deviation (SD) of 3 independent experiments