Preparation and characterization of 茁-cyclodextrin microcapsule of green leaf volatiles

Using cyclodextrin as the encapsulant to complex with two species of green leaf volatiles (GLVs) (E)-2- hexenal and (E)-2-hexen-1-ol, and obtained the GLV--CD microcapsule respectively. The -CD microcapsule泽were analyzed by UV and FTIR spectrum. The inclusion ratio of GLV-茁-CD microcapsules were determined by ultraviolet spectrophotometry. The release rates of (E)-2-hexenal and (E)-2-hexen-1-ol were also detected. The results showed that 茁-cyclodextrin form complexes with (E)-2-hexenal and (E)-2-hexen-1-ol, and the inclusion ratioes of two GLV compounds were 91.6% and 90.2%. With an airflow of 0.1 L/min, the average release rates of (E)-2-hexenal and (E)-2- hexen-1-ol from microcapsule powder were 4.09(0.03)10-2 and 4.06(0.07)10-2 mg/hg respectively (22).