(1,2-beta-D-Fructosyl)m (1,2-beta-D-Fructosyl)m-1 (1,2-beta-D-Fructosyl)n (1,2-beta-D-Fructosyl)n+1 (2,1-beta-D-Fructosyl)n (2,1-beta-D-Fructosyl)n+1 9005-80-5 C03323 Inulin