YUKIO KAWAGUTI, Haroldo; MANRICH, Eiric  and  HARUMI SATO, Hélia. Application of response surface methodology for glucosyltransferase production and conversion of sucrose into isomaltulose using free Erwinia sp. cells. Electron. J. Biotechnol. [online]. 2006, vol.9, n.5. ISSN 0717-3458.