Title: STUDY ON EXTRACTION OF ESSENTIAL OIL FROM DIOSOPYROSI KAKI LEAVES BY SUPERCRITICAL CARBON DIOXIDE
Abstract: Factors in the supercritical fluid extraction of Diospyros kaki leaves through single factor test and orthogonal test were studied. The flow chart was optimized. The results showed that the effects of factors in the decreased order are: pressure, temperature, CO2 flow rate and time. The best extraction condition could be obtained: 100g D. kaki leaves at pressure 18MPa, temperature 50℃, CO2 flow rate 20kg/h and time 2.5h,extraction yield 3.1 %. The yield of essential oil by supercritical CO2 extraction(SCDE) was increased 55 % than steam distillation. The oil is a light yellow liquid with high purity and strong flavoring of D. kaki fruit.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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