Time course of d-tagatose (black symbols) and d-fructose (gray symbols)
production during l-AI- and d-XI-catalyzed isomerization
of d-galactose and d-glucose, respectively: black,
open circle) conversion curve
at 60 °C performed with 0.9 mg of l-AI (expressed in
pSIP609 L. plantarum); (black, solid circle) conversion
curve at 60 °C performed with 1.0 mg of l-AI (expressed
in pET21-a(+) E. coli); (gray, open circle) conversion
curve at 60 °C performed with 0.9 mg of d-XI (expressed
in pSIP609 L. plantarum); (gray, solid circle) conversion
curve at 60 °C performed with 1.9 mg of d-XI (expressed
in pET21-a(+) E. coli).