Characterization of oil including astaxanthin extracted from krill (Euphausia superba) using supercritical carbon dioxide and organic solvent as comparative method

Ali-Nehari, Abdelkader; Kim, Seon-Bong; Lee, Yang-Bong; Lee, Hyeyoun; Chun, Byung‐Soo

doi:10.1007/s11814-011-0186-2

Cited by 44 publications

(38 citation statements)

References 27 publications

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“…The characteristic dark red color of krill oil is due to the presence of astaxanthin. Studies have revealed that the amount of astaxanthin in krill oil ranges from 40 to 5000 mg/kg, depending on krill material, extraction method, and analysis method (Ali‐Nehari, Kim, Lee, Lee, & Chun, ; Lambertsen & Braekkan, ; Sun et al., ; Tandy et al., ; Xie et al., ). The use of acetone as an extraction solvent is helpful to achieve krill oil with a high astaxanthin content (Beaudoin & Martin, ; Xie et al., ).…”

Section: Chemical Composition Of Krill Oilmentioning

confidence: 99%

Antarctic Krill (Euphausia superba) Oil: A Comprehensive Review of Chemical Composition, Extraction Technologies, Health Benefits, and Current Applications

Xie

Gong

Wei

et al. 2019

Comp Rev Food Sci Food Safe

134

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Antarctic krill (Euphausia superba) oil has been receiving increasing attention due to its nutritional and functional potentials. However, its application as a novel food ingredient has not yet been fully explored. This review summarizes the chemical composition, extraction technologies, potential health benefits, and current applications of krill oil, with the aim of providing suggestions for its exploitation. Krill oil is a unique lipid consisting of diverse lipid classes and is characterized by a high concentration (39.29% to 80.69%) of phospholipids (PLs) associated with eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). It also contains considerable amounts of bioactive minor components such as astaxanthin, sterols, tocopherols, vitamin A, flavonoids, and minerals. The current technologies used in krill oil production are solvent extraction, nonsolvent extraction, super/subcritical fluid extraction, and enzyme‐assisted pretreatment extraction, which all greatly influence the yield and quality of the end‐product. In addition, krill oil has been documented to have various health benefits, including anti‐inflammatory effects, cardiovascular disease (CVD) prevention, women's health, neuroprotection, and anticancer activities. Although krill oil products used for dietary supplements have been commercially available, few studies have attempted to explore the underlying molecular mechanisms to elucidate how exactly the krill oil exerts different biological activities. Further studies should focus on this to improve the development of krill oil products for human consumption.

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Section: Chemical Composition Of Krill Oilmentioning

confidence: 99%

Antarctic Krill (Euphausia superba) Oil: A Comprehensive Review of Chemical Composition, Extraction Technologies, Health Benefits, and Current Applications

Xie

Gong

Wei

et al. 2019

Comp Rev Food Sci Food Safe

134

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“…Recently, an alternate source of the LC n‐3 PUFA oils, krill oil (KO), has captured increasing consumer interest and market share. Similar to FO, KO contains high levels of LC n‐3 PUFA (Gigliotti et al ., ; Ali‐Nehari et al ., ). Hitherto, many bioactivities of KO have been observed including inhibition of hepatic steatosis (Tandy et al ., ), anti‐inflammation (Grimstad et al ., ), antioxidation (Gigliotti et al ., ; Grimstad et al ., ), antihyperlipidemic effect (Tandy et al ., ; Li et al ., ), antihyperglycaemic effect (Tandy et al ., ) and cardioprotective effect (Fosshaug et al ., ).…”

Section: Introductionmentioning

confidence: 99%

“…A study by Ali‐Nehari et al . () indicated that the highest yield obtained by SC‐CO 2 extraction just represents about 75.6% of the yield obtained by hexane for KO. KO is commonly extracted by two‐step solvent extraction using acetone and ethanol in the first and second step, respectively (Gigliotti et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Extrusion of Antarctic krill (Euphausia superba) meal and its effect on oil extraction

Yin

Liu

Fan

et al. 2014

Int J of Food Sci Tech

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Summary Antarctic krill meal as well as mixed krill meal and starches were extruded through a twin‐screw extruder. The extrudates were hard and porous agglomerates. The pellets still showed intact structure without obvious disintegration in response to hexane extraction. The oil recovery rates for raw krill meal and the extrudate of single krill meal were 55.08% and 59.08%, respectively. For extrudates, oil recovery rate increased along with the increasing additive amount of starches, with a maximum of 83.13%. Oil extracted from raw krill meal contained 49.30% of triglycerides (TG), 44.16% of phospholipids (PL), 1.45% of free fatty acids (FFA) and 4.69% of cholesterols (CHO). Meanwhile, polyunsaturated fatty acids (PUFA), monounsaturated fatty acids (MUFA) and saturated fatty acids (SFA) account for 20.89%, 37.84% and 41.27% of the total fatty acids, respectively. By contrast, oils extracted from extrudates contained more TG but less PL and more SFA but less PUFA.

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“…A number of studies on extraction of vegetable oil using the Soxhlet extraction method have been published, however, only a few on CTT seed oil were found [7]. Soxhlet extraction is a standard technique and the main reference to which other extraction methods are compared [11,12]. Although Soxhlet extraction is a well-established technique, it is also time consuming and the solvent residue in the extracting products could be harmful to human health as well as the environment [12].…”

Section: Introductionmentioning

confidence: 99%

“…Soxhlet extraction is a standard technique and the main reference to which other extraction methods are compared [11,12]. Although Soxhlet extraction is a well-established technique, it is also time consuming and the solvent residue in the extracting products could be harmful to human health as well as the environment [12]. In addition, degradation and decomposition of thermo-sensitive compounds could occur since relatively high temperature is required for Soxhlet extraction [12].…”

Section: Introductionmentioning

confidence: 99%

Extraction and Characterization of Seed Oil from Naturally Grown Chinese Tallow Trees

Yang

Pan

Zeng

et al. 2012

J Americ Oil Chem Soc

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Seeds were collected from locally and naturally grown Chinese tallow trees (CTT) and characterized for general physical and chemical properties and fatty acid composition of the lipids. The effects of four different solvents (petroleum ether, hexane, diethyl ether, and 95 % ethanol) and two extraction methods (supercritical carbon dioxide (SC‐CO2) and conventional Soxhlet) on the properties of the CTT seed oil, including Chinese vegetable tallow (CVT) and stillingia oil (SO), were also investigated. In general, the yields of CVT and SO did not vary based on solvent for Soxhlet extraction and solvent‐free SC‐CO2 extraction, except that the yield of CVT from SC‐CO2 extraction was substantially lower. Nevertheless, the CTT seed oil, extracted by SC‐CO2 displayed better quality than those extracted by Soxhlet extraction in terms of color, residual precipitation, and acid value of the oils. The pretreatment of CTT seed by 3 % aqueous sodium bicarbonate solution likely promoted the hydrolysis of triglyceride and caused the high acid value in the CVT samples. The iodine value at around 180 indicated that the SO is a highly unsaturated drying oil. Palmitic (76 %) and oleic (23 %) are two dominant fatty acids in CVT while linolenic (43 %), linoleic (31 %), and oleic (13 %) are the dominant fatty acids in SO.

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Characterization of oil including astaxanthin extracted from krill (Euphausia superba) using supercritical carbon dioxide and organic solvent as comparative method

Cited by 44 publications

References 27 publications

Antarctic Krill (Euphausia superba) Oil: A Comprehensive Review of Chemical Composition, Extraction Technologies, Health Benefits, and Current Applications

Antarctic Krill (Euphausia superba) Oil: A Comprehensive Review of Chemical Composition, Extraction Technologies, Health Benefits, and Current Applications

Extrusion of Antarctic krill (Euphausia superba) meal and its effect on oil extraction

Extraction and Characterization of Seed Oil from Naturally Grown Chinese Tallow Trees

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