Production, purification and physicochemical characterization of D-xylose/glucose isomerase from strain BL21.

Cell lysate of strain BL21 showed significant D-glucose isomerase activity. The rate of glucose conversion was increased up to 40% when cells were induced with 1% D-xylose. BL21 xylose isomerase (ECXI-BL21) was purified to homogeneity, up to 1.