Extraction of Active Ingredients from Shiraz City Bitter Orange Peel with supercritical carbon dioxide and soxhlet

Document Type : Original Article


1 Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran

2 Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvasht, Iran


In this study, two methods of soxhlet extraction and supercritical carbon dioxide extraction were used to extract the effective substances in bitter orange peel. In supercritical fluid extraction, the effect of operational parameters such as temperature, pressure, dynamic time and particle size at different levels on extraction efficiency was investigated. To investigate the more accurate effect of the parameters, the design of the experiment was carried out and the response method was used and a model was obtained for the percentage of extraction efficiency by changing the parameters. The extracted materials were compared with two methods. One of the most important extracted materials is ostol and limonene. The amount of ostol in oil extracted by supercritical carbon dioxide is significantly higher than soxhlet method. The best extraction conditions with supercritical carbon dioxide, dynamic time of 80 minutes, temperature of 35 °C, pressure of 157.26 bar and particle size of 0.4099 mm were obtained.


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