“…CDs are widely applied in the biotransformation of steroids. Natural CDs include Į-, ȕ-, Ȗ-, and į-CD, with six, seven, eight and nine glucose units, respectively [10]. Several modified hydrophilic CD derivatives, such as hydroxypropyl-ȕ-cyclodextrin, carboxymethyl-ȕ-cyclodextrin, methyl-ȕ-cyclodextrin, and SBE-ȕ-CD, have been employed to increase aqueous solubility.…”