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S. M. Ghoreishi, E. Bataghva and A. A. Dadkhah Response Surface Optimization of Essential Oil and Diosgenin Extraction from Tribulus terrestris via Supercritical Fluid Technology Chemical Engineering & Technology 35

Article first published online: 1 SEP 2011 | DOI: 10.1002/ceat.201100091

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The essential oil and diosgenin from the T. terrestris fruit were extracted by supercritical CO2. In order to maximize the recovery using the response surface method, the effects of extraction dynamic time, supercritical fluid pressure, temperature, and flow rate were investigated. The obtained data were adequately fitted into two second-order polynomial models for essential oil and diosgenin.

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