Chemical composition, thermal stability and antioxidant properties of tea seed oils obtained by different extraction methods: Supercritical fluid extraction yields the best oil quality

2014 ◽  
Vol 117 (3) ◽  
pp. 355-365 ◽  
Author(s):  
Ping Shao ◽  
Qing Liu ◽  
Zhongxiang Fang ◽  
Peilong Sun
Keyword(s):  
Thermal Stability ◽  
Chemical Composition ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Oil Quality ◽  
Antioxidant Properties ◽  
Extraction Methods ◽  
Seed Oils ◽  
Fluid Extraction

scholarly journals Bioactive Compounds Obtained from Polish “Marynka” Hop Variety Using Efficient Two-Step Supercritical Fluid Extraction and Comparison of Their Antibacterial, Cytotoxic, and Anti-Proliferative Activities In Vitro

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2366
Author(s):  
Katarzyna Klimek ◽  
Katarzyna Tyśkiewicz ◽  
Malgorzata Miazga-Karska ◽  
Agnieszka Dębczak ◽  
Edward Rój ◽  
...  
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Bioactive Compounds ◽  
Crude Extract ◽  
Normal Skin ◽  
Extraction Methods ◽  
Biological Properties ◽  
Added Value ◽  
Fluid Extraction

Given the health-beneficial properties of compounds from hop, there is still a growing trend towards developing successful extraction methods with the highest yield and also receiving the products with high added value. The aim of this study was to develop efficient extraction method for isolation of bioactive compounds from the Polish “Marynka” hop variety. The modified two-step supercritical fluid extraction allowed to obtain two hop samples, namely crude extract (E1), composed of α-acids, β-acids, and terpene derivatives, as well as pure xanthohumol with higher yield than that of other available methods. The post-extraction residues (R1) were re-extracted in order to obtain extract E2 enriched in xanthohumol. Then, both samples were subjected to investigation of their antibacterial (anti-acne, anti-caries), cytotoxic, and anti-proliferative activities in vitro. It was demonstrated that extract (E1) possessed more beneficial biological properties than xanthohumol. It exhibited not only better antibacterial activity against Gram-positive bacteria strains (MIC, MBC) but also possessed a higher synergistic effect with commercial antibiotics when compared to xanthohumol. Moreover, cell culture experiments revealed that crude extract neither inhibited viability nor divisions of normal skin fibroblasts as strongly as xanthohumol. In turn, calculated selectivity indexes showed that the crude extract had from slightly to significantly better selective anti-proliferative activity towards cancer cells in comparison with xanthohumol.

Supercritical fluid extraction of seed oils – A short review of current trends

2021 ◽  
Vol 111 ◽  
pp. 249-260
Author(s):  
Hossein Ahangari ◽  
Jerry W. King ◽  
Ali Ehsani ◽  
Mohammad Yousefi
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Short Review ◽  
Seed Oils ◽  
Fluid Extraction ◽  
Current Trends

scholarly journals A comparative study of conventional and supercritical fluid extraction methods for the recovery of secondary metabolites from Syzygium campanulatum Korth

2016 ◽  
Vol 17 (9) ◽  
pp. 683-691 ◽  
Author(s):  
Abdul Hakeem Memon ◽  
Mohammad Shahrul Ridzuan Hamil ◽  
Madeeha Laghari ◽  
Fahim Rithwan ◽  
Salman Zhari ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Comparative Study ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Extraction Methods ◽  
Fluid Extraction

scholarly journals Effect of Supercritical Fluid Extraction on the Reduction of Toxic Elements in Fish Oil Compared with Other Extraction Methods

2015 ◽  
Vol 78 (1) ◽  
pp. 172-179 ◽  
Author(s):  
PARVANEH HAJEB ◽  
JINAP SELAMAT ◽  
LEILI AFSAH-HEJRI ◽  
NOR AINY MAHYUDIN ◽  
SHAHRAM SHAKIBAZADEH ◽  
...  
Keyword(s):  
Fish Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Toxic Elements ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Human Consumption ◽  
Fluid Extraction ◽  
High Quality ◽  
Low Levels

High-quality fish oil for human consumption requires low levels of toxic elements. The aim of this study was to compare different oil extraction methods to identify the most efficient method for extracting fish oil of high quality with the least contamination. The methods used in this study were Soxhlet extraction, enzymatic extraction, wet reduction, and supercritical fluid extraction. The results showed that toxic elements in fish oil could be reduced using supercritical CO2 at a modest temperature (60°C) and pressure (35 MPa) with little reduction in the oil yield. There were significant reductions in mercury (85 to 100%), cadmium (97 to 100%), and lead (100%) content of the fish oil extracted using the supercritical fluid extraction method. The fish oil extracted using conventional methods contained toxic elements at levels much higher than the accepted limits of 0.1 μg/g.

Translation and Optimization of Supercritical Fluid Extraction Methods to Commercial Instrumentation

1993 ◽  
Vol 31 (1) ◽  
pp. 1-5 ◽  
Author(s):  
J. W. King ◽  
J. M. Snyder ◽  
S. L. Taylor ◽  
J. H. Johnson ◽  
L. D. Rowe
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Extraction Methods ◽  
Fluid Extraction

scholarly journals Supercritical fluid extraction of grape seed: Process scale-up, extract chemical composition and economic evaluation

2012 ◽  
Vol 109 (2) ◽  
pp. 249-257 ◽  
Author(s):  
Juliana M. Prado ◽  
Irede Dalmolin ◽  
Natália D.D. Carareto ◽  
Rodrigo C. Basso ◽  
Antonio J.A. Meirelles ◽  
...  
Keyword(s):  
Economic Evaluation ◽  
Chemical Composition ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Scale Up ◽  
Grape Seed ◽  
Fluid Extraction ◽  
Process Scale Up ◽  
Process Scale
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