Supercritical co2 extraction of African catfish (Clarias Gariepinus) oil and its fatty acid profile

Ferdosh, Sahena and Habib, Md Ashsan and Selamat, Jinap and Tariq, Abdul Razak and Sarker, Md. Zaidul Islam (2012) Supercritical co2 extraction of African catfish (Clarias Gariepinus) oil and its fatty acid profile. In: Malaysian International Conference on Trends in Bioprocess Engineering (MICOTriBE) 2012, 3-5 July, 2012, Langkawi, Kedah, Malaysia.

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Abstract

The supercritical carbon dioxide extraction (SC-CO2) of fish oil was studied using the viscera and skin of African catfish as a raw material and the CO2 as supercritical fluid solvent. A central composite design of response surface methodology (RSM) was employed to optimize the SC-CO2 extraction variables. The response variable (Y) oil yield was executed against the four independent variables namely pressure, temperature, flow rate and the soaking time. The statistical analysis showed, pressure was the most significant linear factor on oil yield. Furthermore, the oil yield was varied with the interaction effects of pressure, temperature and flow rate. Optimum points were obtained within the studied variables range at 65°C temperature, 35 MPa pressure, 2.6 mL/min flow rate and 3.6 h soaking time with maximum oil yield 66.96 and 40.6% from viscera and skin, respectively. The principal fatty acids in terms of concentration were oleic and docosahexaenoic acids respectively. The main objective of this study was to optimize the extraction condition using least amount of CO2 consumption rate and time with highest oil yield recovery and ensure the highest amount of fatty acid in the SC- CO2 extracted oil.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	6605/27872
Uncontrolled Keywords:	catfish oil, fatty acids, supercritical fluid extraction, response surface methodology, viscera and skin.
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science
Depositing User:	Professor Md. Zaidul Islam Sarker
Date Deposited:	20 Jan 2013 07:38
Last Modified:	31 Dec 2015 12:04
URI:	http://irep.iium.edu.my/id/eprint/27872

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