Production of omega 3-rich oils from underutilized chia seeds. Comparison between supercritical fluid and pressurized liquid extraction methods

Abstract This paper describes a comparative study of 2 extraction methods, pressurized liquid extraction (PLE) and microwave-assisted extraction (MAE), for the determination of organochlorine pesticides (OCPs) in fish muscle samples. In both cases, samples were extracted with hexaneacetone (50 + 50), and the extracts were purified by solid-phase extraction using a carbon cartridge as the adsorbent. Pesticides were eluted with hexaneethyl acetate (80 + 20) and determined by gas chromatography with electron-capture detection. Both methods demonstrated good linearity over the range studied (0.0050.100 g/mL). Detection limits ranged from 0.029 to 0.295 mg/kg for PLE and from 0.003 to 0.054 mg/kg for MAE. For most of the pesticides, analytical recoveries with both methods were between 80 and 120, and the relative standard deviations were <10. The proposed methods were shown to be powerful techniques for the extraction of OCPs from fish muscle samples. Although good recovery rates were obtained with both extraction methods, MAE provided advantages with regard to sample handling, cost, analysis time, and solvent consumption. Acceptable validation parameters were obtained although MAE was shown to be more sensitive than PLE.

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Comparisons of Soxhlet extraction, pressurized liquid extraction, supercritical fluid extraction and subcritical water extraction for environmental solids: recovery, selectivity and effects on sample matrix

Journal of Chromatography A ◽

10.1016/s0021-9673(00)00091-1 ◽

2000 ◽

Vol 892 (1-2) ◽

pp. 421-433 ◽

Cited By ~ 275

Author(s):

Steven B Hawthorne ◽

Carol B Grabanski ◽

Esther Martin ◽

David J Miller

Keyword(s):

Supercritical Fluid Extraction ◽

Supercritical Fluid ◽

Subcritical Water ◽

Soxhlet Extraction ◽

Liquid Extraction ◽

Water Extraction ◽

Pressurized Liquid Extraction ◽

Fluid Extraction ◽

Subcritical Water Extraction ◽

Sample Matrix

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Phytochemical composition of fractions isolated from ten Salvia species by supercritical carbon dioxide and pressurized liquid extraction methods

Food Chemistry ◽

10.1016/j.foodchem.2016.12.047 ◽

2017 ◽

Vol 224 ◽

pp. 37-47 ◽

Cited By ~ 16

Author(s):

Vaida Šulniūtė ◽

Audrius Pukalskas ◽

Petras Rimantas Venskutonis

Keyword(s):

Carbon Dioxide ◽

Supercritical Carbon Dioxide ◽

Extraction Methods ◽

Liquid Extraction ◽

Pressurized Liquid Extraction ◽

Phytochemical Composition ◽

Supercritical Carbon

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Antioxidant and antibacterial compounds from feijoa leaf extracts obtained by pressurized liquid extraction and supercritical fluid extraction

Food Chemistry ◽

10.1016/j.foodchem.2020.128620 ◽

2020 ◽

pp. 128620

Author(s):

Pedro Henrique Santos ◽

Joana Costa Kammers ◽

Ana Paula Silva ◽

J. Vladimir Oliveira ◽

Haiko Hense

Keyword(s):

Supercritical Fluid Extraction ◽

Supercritical Fluid ◽

Liquid Extraction ◽

Pressurized Liquid Extraction ◽

Fluid Extraction ◽

Leaf Extracts ◽

Antibacterial Compounds

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Optimization of supercritical fluid extraction and pressurized liquid extraction of active principles from Magnolia officinalis using the Taguchi design

Separation and Purification Technology ◽

10.1016/j.seppur.2009.12.009 ◽

2010 ◽

Vol 71 (3) ◽

pp. 293-301 ◽

Cited By ~ 23

Author(s):

Emily L.C. Cheah ◽

Paul W.S. Heng ◽

Lai Wah Chan

Keyword(s):

Supercritical Fluid Extraction ◽

Supercritical Fluid ◽

Liquid Extraction ◽

Taguchi Design ◽

Pressurized Liquid Extraction ◽

Fluid Extraction ◽

Magnolia Officinalis

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Supercritical Fluid Extraction of Lycopene and Omega-3

WSEAS TRANSACTIONS ON BIOLOGY AND BIOMEDICINE ◽

10.37394/23208.2020.17.1 ◽

2020 ◽

Vol 17 ◽

Keyword(s):

Supercritical Fluid ◽

Extraction Method ◽

Extraction Methods ◽

Omega 3 ◽

Food Sector ◽

Specific Product ◽

Yield And Quality ◽

Supercritical Fluid Technology ◽

Cost Efficient

An ideal extraction method should be rapid, produce a quantitative recovery without degradation and the extracts should be easily separated from the solvent. Supercritical fluid technology offers features that overcome many limitations of conventional extraction methods. There are many advantages to their application, especially in the food sector (for example the extraction of lycopene from tomato skins or the extraction of fish oil rich in omega-3 from fish by-products); the extraction method influences the yield and quality of the product obtained, and also allows to operate with moderate temperatures and with shorter timescales. The processes involving SCF are sustainable, environmentally friendly and cost efficient, and offer the possibility of obtaining new products.The disadvantage, however, lies in the fact that it is necessary to use expensive equipment and to perfect the particular phases of the process to obtain a specific product.

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