2003•Linchan huaxue yu gongyeRequires access

STUDY ON EXTRACTION OF CINNAMON OIL BY SUPERCRITICALCARBON DIOXIDE

Liao Yi

Abstract

Extraction technique of Chinese cinnamon oil by supercritical carbon dioxide method was studied.Factors affecting extraction yields,such as temperature,pressure,CO2 flow rate and bulk density of the raw material,were discussed.By orthogonal experiment,optimal technological conditions were achieved as follows:extracting temperature 40 ℃;extracting pressure 35 MPa;CO2 flow rate 30 kg/h;bulk density of raw material(0.44±0.02)g/mL.Oil yield obtained by this method is 5 times more than that by steam distillation method.The obtained cinnamon oil is of brownish red color with right pure odor.

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Key concepts: Chemistry, Raw material, Supercritical carbon dioxide, Steam distillation, Extraction (chemistry), Carbon dioxide, Distillation, Yield (engineering)