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. 2015 Dec 21;14:204. doi: 10.1186/s12934-015-0391-5

Fig. 3.

Fig. 3

Bioconversion of the d-galactose into d-tagatose at different pH. The conversion was performed by either (1) the induced MRS40 strain: pH 5 (open circle), pH 6 (open triangle), pH 7 (open square) or (2) the purified secreted l-AI enzyme pH 5 (filled circle), pH 6 (filled triangle), pH 7 (filled square)