Beta-Cyclodextrin-Maltodextrin Inclusion Complex of Lavender Oil: Preparation and Physical Properties

This study concentrated on the preparation of lavender oil- β -cyclodextrin microcapsules using an optimized co-precipitation method. The impact of varying ethanol concentrations (20, 30, 40, 50% v/v) on encapsulation efficiency was extensively examined. The results showed that using β -cyclodextrin as the wall material at 40% ethanol concentration yielded a notably high encapsulation efficiency, with a microcapsule recovery rate of 86.46% and a lavender oil encapsulation rate of 72.64%. Additionally, when a β -cyclodextrin-maltodextrin combination was used as the wall material, the 40% ethanol concentration achieved a recovery rate of 78.20% and a lavender oil encapsulation rate of 61.12%. Morphological and X-ray diffraction analyses revealed structural changes in the crystals post-encapsulation, while Fourier Transform Infrared Spectroscopy (FTIR) confirmed the successful formation of the microcapsules.