scholarly journals Supercritical CO2 extraction of mentha (Mentha piperita L.) at different solvent densities

2009 ◽  
Vol 74 (4) ◽  
pp. 417-425 ◽  
Author(s):  
Zoran Zekovic ◽  
Zika Lepojevic ◽  
Slavica Milic ◽  
Dusan Adamovic ◽  
Ibrahim Mujic
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Supercritical Co2 ◽  
Mentha Piperita ◽  
Supercritical Co2 Extraction ◽  
Fluid Extraction

The chemical composition of mentha essential oil and mentha extracts obtained at different pressures/temperatures by supercritical fluid extraction (SFE) were studied by GC-MS. The menthol content was also determined spectrophotometrically. The predominant compounds in the essential oil and in the CO2 extract obtained at 100 bar were L-menthon and menthole but at higher pressures (from 150 to 400 bar), squalene was dominant. The equation of Naik et al. was used for modelling the mentha-supercritical CO2 system.

scholarly journals Chemical Composition, Antioxidant, and Anti-Inflammatory Activity of Essential Oil from Omija (Schisandra chinensis (Turcz.) Baill.) Produced by Supercritical Fluid Extraction Using CO2

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1619
Author(s):  
Jae-Hoon Lee ◽  
Yun-Yeol Lee ◽  
Jangho Lee ◽  
Young-Jin Jang ◽  
Hae-Won Jang
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Inflammatory Activity ◽  
Composition Analysis ◽  
Raw 264.7 ◽  
Schisandra Chinensis ◽  
Fluid Extraction ◽  
Anti Inflammatory

Schisandra chinensis (Turcz.) Baill., which is known as omija in South Korea, is mainly cultivated in East Asia. The present study aimed to investigate the chemical composition of essential oil from the omija (OMEO) fruit obtained by supercritical fluid extraction using CO2 and to confirm the antioxidant and anti-inflammatory activity of OMEO using HaCaT human keratinocyte and RAW 264.7 murine macrophages. As a result of the chemical composition analysis of OMEO using gas chromatography-mass spectrometry, a total of 41 compounds were identified. The detailed analysis results are sesquiterpenoids (16), monoterpenoids (14), ketones (4), alcohols (3), aldehydes (2), acids (1), and aromatic hydrocarbons (1). OMEO significantly reduced the increased ROS levels in HaCaT keratinocytes induced by UV-B irradiation (p < 0.05). It was confirmed that 5 compounds (α-pinene, camphene, β-myrcene, 2-nonanone, and nerolidol) present in OMEO exhibited inhibitory activity on ROS production. Furthermore, OMEO showed excellent anti-inflammatory activity in RAW 264.7 macrophages induced by lipopolysaccharide. OMEO effectively inhibited NO production (p < 0.05) by suppressing the expression of the iNOS protein. Finally, OMEO was investigated for exhibition of anti-inflammatory activity by inhibiting the activation of NF-κB pathway. Taken together, OMEO could be used as a functional food ingredient with excellent antioxidant and anti-inflammatory activity.

Supercritical CO2 extraction of organic carbonate-based electrolytes of lithium-ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (97) ◽  
pp. 54525-54531 ◽  
Author(s):  
Yuanlong Liu ◽  
Deying Mu ◽  
Rujuan Zheng ◽  
Changsong Dai
Keyword(s):  
Lithium Ion Batteries ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Supercritical Co2 ◽  
Lithium Ion ◽  
Supercritical Co2 Extraction ◽  
Fluid Extraction ◽  
Organic Carbonate

Supercritical fluid extraction (SFE) was applied to reclaim organic carbonate-based electrolytes of spent lithium-ion batteries.

scholarly journals Basil (Ocimum basilicum L.) essential oil and extracts obtained by supercritical fluid extraction

2015 ◽  
pp. 259-269 ◽  
Author(s):  
Zoran Zekovic ◽  
Snezana Filip ◽  
Senka Vidovic ◽  
Dusan Adamovic ◽  
Ahmed Elgndi
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Ocimum Basilicum ◽  
Official Method ◽  
Fluid Extraction ◽  
External Standard Method ◽  
Peak Areas ◽  
Quantitative Results ◽  
Supercritical Fluid Carbon Dioxide

The extracts obtained from sweet basil (Ocimum basilicum L.) by hydrodistillation and supercritical fluid extraction (SFE) were qualitative and quantitative analyzed by GC-MS and GC-FID. Essential oil (EO) content of basil sample, determined by an official method, was 0.565% (V/w). The yields of basil obtained by SFE were from 0.719 to 1.483% (w/w), depending on the supercritical fluid (carbon dioxide) density (from 0.378 to 0.929 g mL-1). The dominant compounds detected in all investigated samples (EO obtained by hydrodistillation and different SFE extracts) were: linalool, as the major compound of basil EO (content from 10.14 to 49.79%, w/w), eugenol (from 3.74 to 9.78%) and ?-cardinene (from 3.94 to 8.07%). The quantitative results of GC-MS from peak areas and by GC-FID using external standard method involving main standards, were compared and discussed.

Analysis of Polychlonnated Biphenyls in Fatty Biological Matrixes by On-Line Supercritical Fluid Extraction and Supercritical Fluid Cleanup

1995 ◽  
Vol 78 (4) ◽  
pp. 1051-1054 ◽  
Author(s):  
Earl G Alley ◽  
Guozhen Lu
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Silica Gel ◽  
Supercritical Co2 ◽  
Functionalized Silica ◽  
Fluid Extraction ◽  
Extraction And Separation ◽  
On Line ◽  
Chromatographic Media ◽  
Level Analysis

Abstract We present a method that combines the extraction of polychlonnated biphenyls (PCBs) and their separation from relatively large quantities of fat in biological matrixes by combined supercritical fluid extraction and separation. Cyano-functionalized silica gel, silica gel, aluminum oxide, Florisil, 3-aminopropyl- functionalized silica gel, and octadecyl-functionalized silica gel were tested for suitability as chromatographic media for separation of PCBs from lipids. Silica gel, 3-aminopropyl-functionalized silica gel, and Florisil adequately separated PCBs from lipids when eluted with supercritical CO2. Florisil allowed both the extraction of PCBs and their separation from lipids in PCB-spiked chicken egg and fish. Two grams of sample containing PCBs at 0.125 μg/g was sufficient for subsequent separations and the low-level analysis required for the more toxic PCB components.

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