Figure 5From: A method for the production of D-tagatose using a recombinant Pichia pastoris strain secreting β-D-galactosidase from Arthrobacter chlorophenolicus and a recombinant L-arabinose isomerase from Arthrobacter sp. 22cTime course of D-tagatose production during Arthrobacter sp. 22c L-AI-catalyzed isomerization of D-galactose. Reaction mixtures containing 0.2 mg mL-1Arthrobacter sp. 22c L-arabinose isomerase and 4% (w/v) D-galactose in 20 mM potassium phosphate buffer pH 7.0 were incubated at 50°C.Back to article page