scholarly journals Squalene Extraction by Supercritical Fluids from Traditionally Puffed Amaranthus hypochondriacus Seeds

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Teresa Rosales-García ◽  
Cristian Jiménez-Martínez ◽  
Anaberta Cardador-Martínez ◽  
Sandra Teresita Martín-del Campo ◽  
Luis A. Galicia-Luna ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Supercritical Fluid Extraction ◽  
Organic Solvents ◽  
Supercritical Fluid ◽  
Supercritical Fluids ◽  
Seed Morphology ◽  
Natural Antioxidant ◽  
Amaranthus Hypochondriacus ◽  
Squalene Content ◽  
Soxhlet Method

Extraction of squalene, a potent natural antioxidant, from puffed A. hypochondriacus seeds was performed by supercritical fluid extraction (SCFE); besides, to have a blank for comparison, extraction was performed also by Soxhlet method using organic solvents (hexane). Chemical proximal composition and seed morphology were determined in raw, puffed, and SCFE-extracted seeds. Extracts were obtained with a 500 mL capacity commercial supercritical extractor and performed between 10 and 30 MPa at 313, 323, and 333 K under constant CO2 flow of 0.18 kg CO2/h during 8 h. The squalene content was determined and the fatty acids present in the extracts were identified by GC-MS. The extract obtained by SCFE from puffed amaranth seeds reached 460 ± 28.1 g/kg squalene in oily extract at 313 K/20 MPa.

scholarly journals Application of supercritical fluid extraction for separation of nutraceuticals and other phytochemicals from plant material

2013 ◽  
Vol 32 (1) ◽  
pp. 183 ◽  
Author(s):  
Miha Oman ◽  
Mojca Škerget ◽  
Zeljko Knez
Keyword(s):  
Fatty Acids ◽  
Phenolic Compounds ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Supercritical Fluids ◽  
Plant Material ◽  
Chemical Nature ◽  
Tabular Form ◽  
Fluid Extraction ◽  
Bioactive Phytochemicals

In present work a literature review of application of supercritical fluid extraction (SFE) for isolation of nutraceuticals and some other phytochemicals up to December of 2012 is presented. Manuscript provides knowledge of SFE processes and possible aplications of SFE for extraction of bioactive compounds which serve as nutraceuticals. Compounds are classified into groups based on their chemical nature (carotenoids, flavonoids and other phenolic compounds, essential oils, lipids and fatty acids, and alkaloids and other bioactive phytochemicals) and they are reviewed in tabular form along with plant material, from which they were extracted using supercritical fluids.

Enhanced Supercritical Fluid Carbon Dioxide Extraction of Pesticides from Foods using Pelletized Diatomaceous Earth

1991 ◽  
Vol 74 (4) ◽  
pp. 661-666 ◽  
Author(s):  
Marvin L Hopper ◽  
Jerry W King
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Fluid Extraction ◽  
Organic Solvents ◽  
Supercritical Fluid ◽  
Diatomaceous Earth ◽  
Peanut Butter ◽  
Butter Fat ◽  
Carbon Dioxide Extraction ◽  
Matrix Components ◽  
Supercritical Fluid Carbon Dioxide

Abstract Supercritical fluid carbon dioxide (SC-C02), when used with an extraction enhancer, comprises a supercritical fluid extraction (SFE) system for extraction of pesticides and matrix components from fatty and nonfatty foods. After being mixed with the enhancer, samples ranging from 95 % water to pure lipophilic oils can be extracted efficiently with SC-C02. This extraction technique yields analyte recoveries in excess of 85 % for over 30 types of pesticides at incurred levels ranging from 0.005 to 2 ppm in such diverse matrixes as carrots, lettuce, peanut butter, hamburger, and fortified butter fat and fortified potatoes. SC-C02 provides a solvent medium that is nontoxic, nonflammable, and inexpensive while also eliminating the use and disposal of potentially carcinogenic organic solvents.

scholarly journals Extraction of Added-Value Triterpenoids from Acacia dealbata Leaves Using Supercritical Fluid Extraction

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1159
Author(s):  
Vítor H. Rodrigues ◽  
Marcelo M. R. de Melo ◽  
Inês Portugal ◽  
Carlos M. Silva
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Extraction Yield ◽  
Added Value ◽  
Fluid Extraction ◽  
Acacia Dealbata ◽  
First Time ◽  
Total Extraction

Forestry biomass is a by-product which commonly ends up being burnt for energy generation, despite comprising valuable bioactive compounds with valorisation potential. Leaves of Acacia dealbata were extracted for the first time by supercritical fluid extraction (SFE) using different conditions of pressure, temperature and cosolvents. Total extraction yield, individual triterpenoids extraction yields and concentrations were assessed and contrasted with Soxhlet extractions using solvents of distinct polarity. The extracts were characterized by gas chromatography coupled to mass spectrometry (GC-MS) and target triterpenoids were quantified. The total extraction yields ranged from 1.76 to 11.58 wt.% and the major compounds identified were fatty acids, polyols, and, from the triterpenoids family, lupenone, α-amyrin and β-amyrin. SFE was selective to lupenone, with higher individual yields (2139–3512 mg kgleaves−1) and concentrations (10.1–12.4 wt.%) in comparison to Soxhlet extractions, which in turn obtained higher yields and concentrations of the remaining triterpenoids.

Supercritical Fluid Extraction of Lipids and Enrichment of DHA from Freshwater Fish Processing Wastes in Thailand

2014 ◽  
Vol 1044-1045 ◽  
pp. 444-447 ◽  
Author(s):  
Thitiphan Chimsook
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Freshwater Fish ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Omega 3 ◽  
Fish Processing ◽  
Fluid Extraction ◽  
Processing Wastes ◽  
By Products

Nowadays, an awareness of health benefits of omega-3 has been found. Polyunsaturated fatty acids, especially DHA, are more attention due to their role in human health. Hence, this study investigated the potential of by-products as freshwater fish source of omega-3 polyunsaturated fatty acids (omega-3 PUFAs). The by-products of processing accounted for approximately 55% of the catfish industry. Supercritical fluid extraction (SFE) of the by-products at 35 MPa, 40 ◦C, ethanol (95%, v/v) as the co-solvent, and the mass ratio of by-products to co-solvent as 1:1 generated a lipid yield at 30.9% and 21.5 % docosahexaenoic acid (DHA). Additionally, urea complexation was an effective tool to enrich and purify DHA from lipids. DHA purity increased from 21.5% to 38.4% under the optimum complexation condition.

scholarly journals Some Advances in Supercritical Fluid Extraction for Fuels, Bio-Materials and Purification

Processes ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 156 ◽  
Author(s):  
Yizhak Marcus
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Supercritical Fluids ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Nanosized Particles ◽  
Fluid Extraction ◽  
Physical And Chemical ◽  
And Chemical Properties

Supercritical fluids are used for the extraction of desired ingredients from natural materials, but also for the removal of undesired and harmful ingredients. In this paper, the pertinent physical and chemical properties of supercritical water, methanol, ethanol, carbon dioxide, and their mixtures are provided. The methodologies used with supercritical fluid extraction are briefly dealt with. Advances in the application of supercritical extraction to fuels, the gaining of antioxidants and other useful items from biomass, the removal of undesired ingredients or contaminants, and the preparation of nanosized particles of drugs are described.

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