Preparation of Antimicrobial ϐ-cyclodextrin Microcapsules containing a Mixture of Three Essential Oils as an Eco-friendly Additive for Active Food Packaging Paper

This study aims to prepare antimicrobial microcapsules which can be used as an eco-friendly additive for active food packaging paper. Essential oils from aromatic plants, possessing activity, are commonly employed the treatment of some diseases and symptoms. In this study, equal volume mixture three essential oils：oregano, tea tree cinnamon oils, were embedded into hollow cavities ϐ-cyclodextrin form via a microencapsulation technology：co-precipitation. The recovery yield oils/ϐ-cyclodextrin after co-precipitation embedding ratio in 86.5% 30.5%, respectively. Based on results morphological X-ray diffraction analyses, crystal structure appeared differ before microencapsulation. gas chromatography-mass spectrometry Fourier transform-infrared spectroscopy confirmed formation microcapsules. A satisfactory activity fabricated was proved by assay using Bacillus subtilis object microorganism, suggesting containing could promising