Analytical Supercritical Fluid Extraction

1994 ◽  
Author(s):  
Maria Dolores Luque de Castro ◽  
Miguel Valcárcel ◽  
Maria Teresa Tena
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Fluid Extraction

VOLATILES IN TAMAIOASA ROMANEASCA VIA SUPERCRITICAL FLUID EXTRACTION (SFE) ANALYSIS

2015 ◽  
Vol 14 (2) ◽  
pp. 297-302 ◽  
Author(s):  
Valeriu V. Cotea ◽  
Lucia Cintia Colibaba ◽  
Liliana Rotaru ◽  
Bogdan Nechita ◽  
Marius Niculaua ◽  
...  
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
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 oleoresin from Capsicum annuum industrial waste

2021 ◽  
Vol 297 ◽  
pp. 126593
Author(s):  
Ana Carolina Fornereto Soldan ◽  
Sarah Arvelos ◽  
Érika Ohta Watanabe ◽  
Carla Eponina Hori
Keyword(s):  
Capsicum Annuum ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Industrial Waste ◽  
Fluid Extraction

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 Effect of flow rate, particle size and modifier ratio on the supercritical fluid extraction of anthocyanins from Hibiscus sabdariffa (L).

2020 ◽  
Vol 932 ◽  
pp. 012031
Author(s):  
Zuhaili Idham ◽  
Ahmad Syahmi Zaini ◽  
Nicky Rahmana Putra ◽  
Nurfarhain Mohamed Rusli ◽  
Noor Sabariah Mahat ◽  
...  
Keyword(s):  
Particle Size ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Flow Rate ◽  
Hibiscus Sabdariffa ◽  
Fluid Extraction

scholarly journals Assessment of Conventional Solvent Extraction vs. Supercritical Fluid Extraction of Khella (Ammi visnaga L.) Furanochromones and Their Cytotoxicity

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1290
Author(s):  
Noha Khalil ◽  
Mokhtar Bishr ◽  
Mohamed El-Degwy ◽  
Mohamed Abdelhady ◽  
Mohamed Amin ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Cytotoxic Activity ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Water Extract ◽  
Renal Stones ◽  
Pharmaceutical Products ◽  
Fluid Extraction ◽  
Ammi Visnaga ◽  
Conventional Solvent Extraction

Background: Khella (Ammi visnaga Lam.) fruits (Apiaceae) are rich in furanochromones, mainly khellin and visnagin, and are thus incorporated in several pharmaceutical products used mainly for treatment of renal stones. Methods: The objective of this study was to compare the yield of khellin and visnagin obtained using different conventional solvents and supercritical fluid extraction (SCFE) with carbon dioxide (containing 5% methanol as co-solvent). Water, acetone and ethanol (30% and 95%) were selected as conventional solvents. Results: Highest extract yield was obtained from 30% ethanol (15.44%), while SCFE gave the lowest yield (4.50%). However, the percentage of furanochromones were highest in SCFE (30.1%), and lowest in boiling water extract (5.95%). HPLC analysis of conventional solvent extracts showed other coumarins that did not appear in supercritical fluid extraction chromatogram due to non-selectivity of solvent extraction. Ammi visnaga extracts as well as standard khellin and visnagin were tested for their cytotoxic activity using sulforhodamine B assay on breast cancer (MCF-7) and hepatocellular carcinoma (Hep G2) cell lines. Results revealed a strong cytotoxic activity (IC50 < 20 µg/mL) for the SCFE and standard compounds (khellin and visnagin) (IC50 ranging between 12.54 ± 0.57 and 17.53 ± 1.03 µg/mL). However, ethanol and acetone extracts had moderate cytotoxic activity (IC50 20–90 µg/mL) and aqueous extract had a weak activity (IC50 > 90 µg/mL). Conclusions: Thus, supercritical fluid extraction is an efficient, relatively safe, and cheap technique that yielded a more selective purified extract with better cytotoxic activity.

MASS TRANSFER IN A SEMIBATCH SUPERCRITICAL FLUID EXTRACTION CONTACTOR FOR LIQUID MIXTURES

1990 ◽  
Vol 95 (1) ◽  
pp. 57-73 ◽  
Author(s):  
GUIDO BARTOLOMEO ◽  
ALBERTO BERTUCCO ◽  
GIAN BERTO GUARISE
Keyword(s):  
Mass Transfer ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Liquid Mixtures ◽  
Fluid Extraction
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