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Reda M. Abdelhameed,Eman Alzahrani,Abdallah A. Shaltout,Hossam E. Emam 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.94 No.-
Essential oils are characterized by their potency as anti-pathogens and anti-oxidants. However, there is alimitation in the application due to uncontrollable release. Therefore, this approach is focused ondesigning mesoporous composite for temperature-controlled release of essential oils. Mesoporouscomposite namely zeolitic imidazole frameworks@microcrystalline cellulose (ZIF@MCC), was successfullysynthesized by the immediate growth of ZIF based on Zn and Co separately within MCC matrix. Theestimated masses of ZIF within MCC were 263.4 – 296.3 g/kg. Orthorhombic dodecahedron crystallineZIFs in micro size was massively covered MCCfibrils. Release of thyme and cumin as two essential oils,from mesoporous ZIF@MCC composites was investigated at different temperatures. After 5 days, therelease of essential oils were significantly slowed down to be 49.3 – 119.7 mg/g (18.5 – 44.9 %) forZIF@MCC composites compared to 248.0 – 265.7 mg/g (93.0 – 99.6 %) for MCC. Elevation of temperaturewas accompanied by slight faster release attributing to the ease liberation of essential oils by heating. Releasing mechanism of essential oils is mainly supposed due to combination between physical inprinciple as a solute diffusion and chemical processing’s in small relevant.