Substrate specificity of a recombinant ribose-5-phosphate isomerase from Streptococcus pneumoniae and its application in the production of l-lyxose and l-tagatose - Chang-Su Park; Soo-Jin Yeom; Yu-Ri Lim; Yeong-Su Kim; Deok-Kun Oh (World Journal of Microbiology and Biotechnology, 2011)