Extraction of fish oil from longtail tuna head waste using various method of supercritical carbon dioxide
Fish oil was extracted from the head of longtail tuna (Thunnus tonggol) using various supercritical carbon dioxide (SC -C02) technique and Soxhlet method, for comparison of the yield. The extraction were performed at temperature 45 to 65 °C and pressure 20 to 40 MPa, where 65 °C/40 MPa gave the hi...
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| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/35660/1/sarker.pdf http://irep.iium.edu.my/35660/ |
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| Institution: | Universiti Islam Antarabangsa Malaysia |
| Language: | English |
| Summary: | Fish oil was extracted from the head of longtail tuna (Thunnus tonggol) using various supercritical carbon dioxide (SC
-C02) technique and Soxhlet method, for comparison of the yield. The extraction were performed at temperature 45 to
65 °C and pressure 20 to 40 MPa, where 65 °C/40 MPa gave the highest yield of 20.6, 35.4 and 34.1 g/ 100 g sample
(dry basis) for the continuous, cosolvent, and pressure swing techniques of SC-C02, respectively. The highest C02
consumption was found in continuous technique (943.5 gN a ed by pressure swing (393.1 g), and co-solvent
technique (258.6 g) respectively at 65 °C and 40 MPa. The solubility of oil in SC-C02 at co-solvent technique in¬
creased from 5.87 to 13.69 g oil/100 g of CO?, at pressure swing technique from 3.37 to 8.67 g oil/100 g of C02, and
at continuous technique was only from 0.88 to 2.18 g oil/100 g of C02with the pressure and temperature from 20 to
40 MPa and 45 to 65 "C, respectively. Thus, the co-solvent method of SC-C02 was regarded as the most effective
method in terms of extracting highest oil yield with least amount of C02 consumption from tuna head wastes.
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