Supercritical CO ₂ extraction and quality comparison of lipids from Yellowtail fish ( Seriola quinqueradiata ) waste in different conditions

Abstract

Every year, a large amount of by-products produced by fish processing industries is discarded or used for less profitable purposes. In this study, we will describe a technique for producing high-quality, edible oil from the viscera of yellowtail fish (Seriola quinqueradiata) which can be served as a source of omega polyunsaturated fatty acids. Yellowtail fish viscera oil was extracted using supercritical carbon dioxide (SC-CO 2) extraction and Soxhlet apparatus. SC-CO 2 extraction was carried out in a semi-batch process at a temperature and pressure ranging from 40°C to 50°C and from 15 to 30 MPa, respectively, and a CO 2 flow rate of 27 g/min for 3 hr. During the experimental study, the influence of operation parameters such as extraction time, operating pressure, and operating temperature on yield of oil was investigated.

Farmed Gilthead Sea Bream (Sparus aurata) by-Products Valorization: Viscera Oil ω-3 Enrichment by Short-Path Distillation and In Vitro Bioactivity Evaluation

“…The values of TOTOX and TBARS ( Table 5 ) in RVO produced from CVO extracted at 60 °C were lower than those observed by the same authors [ 25 ]. The results of this study for the PV, ρ-AV, and TOTOX contents of RVO at 60 °C were comparable to the values observed by Franklin et al [ 58 ] in oil extracted from yellowtail fish waste by supercritical CO 2 extraction [ 58 ].…”

“…The high temperature extraction-induced lipid oxidation that determined a variation of the extracted oil color [ 53 , 56 , 57 , 58 ].…”

Edible oil extracted from anchovies using supercritical CO 2 : Availability of fat‐soluble vitamins and comparison with commercial oils

“…More importantly, anchovy contains eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in amount as high as in dark muscle fishes. EPA and DHA are essential fatty acids that are not synthesized in the body but are effective in preventing blood circulation diseases and alleviating inflammatory diseases (Franklin et al., 2020; Park et al., 2019; Roy et al., 2020). Recently, EPA and DHA have attracted attention as functional ingredients that may have an effect of improving brain function, including learning ability (Haq & Chun, 2018).…”

“…circulation diseases and alleviating inflammatory diseases (Franklin et al, 2020;Park et al, 2019;Roy et al, 2020). Recently, EPA and DHA have attracted attention as functional ingredients that may have an effect of improving brain function, including learning ability (Haq & Chun, 2018).…”

“…Specifically, carbon dioxide used as a supercritical fluid can solve the problem of the hazards of solvent, denaturation of components and complexity of the extraction process because of its nontoxicity, has a low critical point (T c = 31℃, P c = 73 bar), and easy volatilization after extraction (Roh et al, 2008). Supercritical carbon dioxide (SC-CO 2 ) has also been proved to be an efficient method of oil extraction from biomass in our previous studies (Ahmed et al, 2017;Franklin et al, 2020;Haq, Getachew, et al, 2017;Roh et al, 2008;Roy et al, 2020). In this study, anchovy oil was extracted using the SC-CO 2 extraction as a clean process for the high valorization of anchovies and comparative experiments were conducted with both anchovy oil extracted using an organic solvent and commercial oils containing EPA and DHA.…”