Characterization of the Yellow Croaker Larimichthys polyactis muscle Oil Extracted with Supercritical Carbon Dioxide and an Organic Solvent

Abstract

Yellow croaker Larimichthys polyactis muscle oil was extracted using an environmental friendly solvent, supercritical carbon dioxide (SC-CO 2), in a semi-batch flow extraction process. SC-CO 2 was applied at temperature 35°C to 45°C and 150°C to 250°C bar of pressure. The flow rate of CO 2 (27.79 g/min) was constant throughout the entire 1.5 h extraction period. The oil extraction yield was influenced by the physical properties of SC-CO 2 at different temperatures and pressures. The extracted oil was analyzed by gas chromatography to determine the fatty acid composition. According to our results, the SC-CO 2 extracted oil was high in eicosapentaenoic acid and docosahexaenoic acid. In addition, the SC-CO 2 extracted oil showed greater stability than n-hexane extracted oil based on the peroxide value and acid value. Thus, the quality of yellow croaker oil obtained by SC-CO 2 extraction was slightly higher than that of oil obtained by n-hexane extraction.

Untitled

“…SEO contained significantly (P≤0.05) higher amount of EPA+DHA than HEO in the skins, scales and bones in this study. This results was in agreement with other studies (RubioRodriguez et al, 2008;Amiguet et al, 2012;Lee, Asaduzzaman, Yun, Yun, & Chun, 2012). The dominant fatty acids in tuna by-products oil were DHA, followed by oleic acid and palmitic acid, which was almost the same as the results of other studies (Chantachum et al, 2000;Deepika et al, 2014).…”

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

“…The use of CO 2 as a solvent tenders a new opportunity for solving the separation problem because it is inflammable, non‐toxic, green, and inexpensive. Furthermore, the solvating power of SC‐CO 2 can be regulated by tuning the temperature and/or pressure to permit fitting selectivity (Lee, Asaduzzaman, Yun, Yun, & Chun, 2012). SC‐CO 2 extraction has been demonstrated to be an efficient separation method in the area of functional foods and nutraceutical supplements (Reverchon & De Marco, 2006; Rosa et al., 2008; Roy, Getachew, Cho, Park, & Chun, 2020).…”

Supercritical CO2 processing of omega-3 polyunsaturated fatty acids – Towards a biorefinery for fish waste valorization

“…Oils from sturgeon [46,47], common carp [48], striped weakfish [49], jumbo squid [38], sardine [50], orange roughy [38], yellow croaker [51], trout [52], salmon [38,53,54], sardine, and rendered fish meal [55] have been also obtained by SFE over the last decade (Table 1). Reported omega-3 PUFA contents in the extracted oil differ from 0.8 [38] up to 46 %wt [41], depending on the fatty acid profile of the original fish species and the fish part.…”