ID 4.2.1.179 DE difructose-anhydride-I synthase. AN bis-D-fructose 2',1:2,1'-dianhydride fructohydrolase. AN DFA-Iase. AN inulobiose hydrolase. CA bis-D-fructose 2',1:2,1'-dianhydride + H2O = inulobiose. CC -!- The enzyme, studied in the fungus Aspergillus fumigatus, CC may participate in an inulin degradation pathway in which it converts CC the product of EC 4.2.2.17 to inulobiose, though in vitro activity CC was higher in the direction of DFA-I formation. CC -!- Formerly EC 3.2.1.134. //