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. 2018 Nov 9;9:2690. doi: 10.3389/fmicb.2018.02690

FIGURE 2.

FIGURE 2

Growth of B. breve UCC2003 (A), B. breve UCC2003 pNZ44 (B) and B. breve UCC2003 pNZ44caeA (C) on RCA supplemented with 0.1% (v/v) ethyl ferulate acid. A zone of clearing indicates esterase activity.