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Effectiveness of Urea Crystallization Method in the Producting Omega-3 Concentrate from Tuna (Thunnus sp.)

Authors

Sugeng Heri Suseno Department of Aquatic Product Technology, Faculty of Fisheries and Marine Sciences, IPB University, IPB Darmaga Campus, Bogor 16680, Indonesia
Dhanurendra Izza Dewangga Department of Aquatic Product Technology, Faculty of Fisheries and Marine Sciences, IPB University, IPB Darmaga Campus, Bogor 16680, Indonesia
Purnama Arafah Department of Aquatic Product Technology, Faculty of Fisheries and Marine Sciences, IPB University, IPB Darmaga Campus, Bogor 16680, Indonesia

DOI:

https://doi.org/10.18343/jipi.31.3.605

Keywords:

low-temperature crystallization, omega-3 concentrate, response surface methodology, tuna oil

Abstract

Omega-3 concentrates developed from fish oil without any other components are excellent for overall health. The objective of this study was to evaluate the effectiveness of the urea crystallization method in relation to the iodine value and the increase in total omega-3 fatty acids during the production of omega-3 concentrates from tuna fish oil using response surface methodology (RSM). Using the urea crystallization method, pure ethyl ester oil is mixed with urea, then left to stand at a low temperature with predetermined ratios and times to obtain omega-3 concentrate. The total omega-3 content in the crude tuna oil obtained in this study was 19.51%. The total omega-3 content from pure tuna oil was 32.90%. Meanwhile, the total omega-3 content in the tuna omega-3 concentrate was 16.97%. Longer storage times were found to reduce saturated fat content and increase omega-3 levels, as indicated by higher iodine values.

Keywords: low-temperature crystallization, omega-3 concentrate, response surface methodology. tuna oil

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Published

2026-05-27 — Updated on 2026-06-02

Versions

Issue

Vol. 31 No. 3 (2026): Jurnal Ilmu Pertanian Indonesia

Section

Articles

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How to Cite

Heri Suseno, S., Izza Dewangga, D. and Arafah, P. (2026) “Effectiveness of Urea Crystallization Method in the Producting Omega-3 Concentrate from Tuna (Thunnus sp.)”, Jurnal Ilmu Pertanian Indonesia, 31(3), pp. 605–610. doi:10.18343/jipi.31.3.605.