Abstract
In order to investigate the application potential of branched CDs, the solubilizing ability and the stabilizing ability of G2-βCD and GUG-βCD were investigated by using twelve terpenes (d-limonene, myrcene, terpinolene, geraniol, l-menthol, nerol, α-terpineol, citral, d-citronellal, l-perillaldehyde, (R)-l-carvone, and menthone) as guest compounds. G2-βCD and GUG-βCD showed more solubilizing ability for these twelve terpenes than βCD, and the ability of GUG-βCD was almost the same as that of G2-βCD. The stabilizing ability of terpene-GUG-βCD complexes was different from that of G2-βCD. GUG-βCD was superior to G2-βCD, especially in the solid state. This result may have been caused by the difference in structure of side chain, namely the hydroxymethyl group in G2-βCD and the carboxyl group in GUG-βCD.
