Mathematical modeling and study of mass transfer parameters in supercritical fluid extraction of fatty acids from Trout powder

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• 作者：Hamzeh Zakizadeh Nei Nei ; Shohreh Fatemi ; Mohammad Reza Mehrnia ; Alireza Salimi
• 关键词：Mathematical modeling ; Supercritical fluid extraction ; Trout powder ; Fatty acids ; Mass transfer coefficient
• 刊名：Biochemical Engineering Journal
• 出版年：2008
• 出版时间：15 May 2008
• 年：2008
• 卷：40
• 期：1
• 页码：72-78
• 全文大小：431 K

文摘

Mathematical modeling of fatty acids (FAs) extraction from Trout powder by supercritical carbon dioxide was performed in the present work. Trout powder with its low cost contains high amount of essential FAs and it is commonly available as a proper source of FAs. The effect of process parameters, such as pressure (25, 28, 31, 34 and 37 MPa) and temperature (310, 318 and 326 K) of extraction and void fraction of the bed (0.25, 0.35 and 0.45, v/v) on the yield of FAs extraction was examined in a series of experiments conducted in a laboratory scale apparatus. The results indicated a significant increase of extraction yield with an increase of pressure from 25 to 34 MPa, but working at the higher pressure (37 MPa) caused reduction of the extract. Increasing the temperature higher than 318 K revealed significant reduction of the FAs yield and increasing the bed void fraction from 0.25 to 0.45 showed enhancement of the extraction.