Optimisation and characterisation of marihuana extracts obtained by supercritical fluid extraction and focused ultrasound extraction and retention time locking GC-MS

2013 ◽  
Vol 36 (8) ◽  
pp. 1397-1404 ◽  
Author(s):  
Jone Omar ◽  
Maitane Olivares ◽  
Mikel Alzaga ◽  
Nestor Etxebarria
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Retention Time ◽  
Focused Ultrasound ◽  
Fluid Extraction ◽  
Ultrasound Extraction

scholarly journals Prediction of the GC-MS retention time for terpenoids detected in sage (Salvia officinalis L.) essential oil using QSRR approach

2020 ◽  
Vol 85 (1) ◽  
pp. 9-23
Author(s):  
Branimir Pavlic ◽  
Nemanja Teslic ◽  
Predrag Kojic ◽  
Lato Pezo
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Retention Time ◽  
Quantitative Structure ◽  
Fluid Extraction ◽  
Prediction Of Retention ◽  
Structure Retention ◽  
Quantitative Structure Retention Relationship ◽  
Essential Oil Compounds

This work aimed to obtain a validated model for prediction of retention time of terpenoids isolated from sage herbal dust using supercritical fluid extraction. In total 32 experimentally obtained retention time of terpenes, which were separated and detected by GC?MS were further used to build a prediction model. The quantitative structure?retention relationship was employed to predict the retention time of essential oil compounds obtained in GC?MS analysis, using six molecular descriptors selected by a genetic algorithm. The selected descriptors were used as inputs of an artificial neural network, to build a retention time predictive quantitative structure?retention relationship model. The coefficient of determination for training cycle was 0.837, indicating that this model could be used for prediction of retention time values for essential oil compounds in sage herbal dust extracts obtained by supercritical fluid extraction due to low prediction error and moderately high r2. Results suggested that a 2D autocorrelation descriptor AATS0v was the most influential parameter with an approximately relative importance of 25.1 %.

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
Sign in / Sign up

Export Citation Format

Share Document