Original scientific paper
https://doi.org/10.13044/j.sdewes.d13.0540
Recovery of Polyunsaturated Fatty Acids Rich Extracts from European Carp Viscera Using Supercritical Carbon Dioxide: Artificial Neural Network Modelling
Stefan Kuvendziev
; University Ss. Cyril and Methodius, Faculty of Technology and Metallurgy in Skopje, Skopje, North Macedonia
Kiril Lisichkov
; Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University, Skopje, North Macedonia
Isidora Dimitrievska
; University Ss. Cyril and Methodius, Faculty of Technology and Metallurgy in Skopje, Skopje, North Macedonia
Martin Stojchevski
; University Ss. Cyril and Methodius, Faculty of Technology and Metallurgy in Skopje, Skopje, North Macedonia
Mirko Marinkovski
; University Ss. Cyril and Methodius, Faculty of Technology and Metallurgy in Skopje, Skopje, North Macedonia
Goran Nachevski
; University Ss. Cyril and Methodius, Faculty of Technology and Metallurgy in Skopje, Skopje, North Macedonia
Zoran Zeković
; University of Novi Sad, Faculty of Technology, Novi Sad, Serbia
Snežana Filip
; University of Novi Sad, Technical faculty
Abstract
Applying green engineering principles to conventional fish processing bio-waste (viscera matrixes) suggests its reconsideration as a secondary raw material rich in highly valued polyunsaturated omega-3 and omega-6 fatty acids. Supercritical fluid carbon dioxide extraction was introduced as a separation technique with a minimal ecological footprint. The operating variables of the extraction process were set at 20, 30, 35, and 40 MPa; 313, 323, and 333 K; and 3.23, 4.62, and 5.9 g CO2/min. The artificial neural network model was designed based on the investigated output − polyunsaturated fatty acids' solubility in supercritical carbon dioxide employing the backpropagation training algorithm with the proposed 3-10-1 architecture. The model provided high accuracy (r = 0.9905), and the resulting three-dimensional space depicted the omega-3 and omega-6 solubility. The maximum yield of the total extract, 0.52 g/g freeze-dried product, was achieved at 40 MPa and 333 K.
Keywords
European carp viscera; polyunsaturated fatty acids’ solubility; supercritical fluid carbon dioxide extraction; feed-forward artificial neural network modelling.
Hrčak ID:
329139
URI
Publication date:
15.3.2025.
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