In enzymology, a sucrose:sucrose fructosyltransferase () is an enzyme that catalyzes the chemical reaction
Hence, this enzyme has one substrate, sucrose, but 2 products: <small>D</small>-glucose and beta-<small>D</small>-fructofuranosyl-(2âÂÂ1)-beta-<small>D</small>-fructofuranosyl alpha-<small>D</small>-glucopyranoside.
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is sucrose:sucrose 1'-beta-<small>D</small>-fructosyltransferase. Other names in common use include SST, sucrose:sucrose 1-fructosyltransferase, sucrose-sucrose 1-fructosyltransferase, sucrose 1F-fructosyltransferase, and sucrose:sucrose 1F-beta-<small>D</small>-fructosyltransferase.