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Abstract
Traditional method to prepare clove oil is by steam distillation of crude clove oil. However, the major drawback of this method is that the densities of clove and water are very close to each other and further extraction by organic solvents is inevitable. To solve this problem and follow the requirement of environmental benign operation, a microcapsule β-cyclodextrin in aqueous two-phase system is developed to extraction of crude clove essential oil with higher selectivity and purity than steam distillation. Moreover, this stable clove capsules with β-cyclodextrin may have broad applications in food, medication, cosmetic and tobacco industries.
