Results 61 to 70 of about 1,748,305 (222)

Enantioselective Analytical- and Preparative-Scale Separation of Hexabromocyclododecane Stereoisomers Using Packed Column Supercritical Fluid Chromatography

Molecules, 2016
Hexabromocyclododecane (HBCDD) is an additive brominated flame retardant which has been listed in Annex A of the Stockholm Convention for elimination of production and use.
Nicole Riddell, Lauren Gayle Mullin, Bert van Bavel, Ingrid Ericson Jogsten, Alan McAlees, Allison Brazeau, Scott Synnott, Alan Lough, Robert McCrindle, Brock Chittim   +9 more
doaj   +1 more source

Determination of polar pesticide residues in vegetable and fruit by supercritical fluid chromatography­Q­Orbitrap

Zhongguo shipin weisheng zazhi, 2022
ObjectiveTo establish a method for determination of 12 polar pesticide residues in vegetables and fruits by supercritical fluid chromatography­Q­Orbitrap （SFC­Q­Orbitrap）.MethodsThe samples were extracted with 1% acidified methanol，and the extract was ...
XU Qian, LU Dasheng, QIU Xinlei, FENG Chao, LIN Yuanjie, LE Sunyang, CHEN Yuhang, JIN Yu'e   +7 more
doaj   +1 more source

Lycopene‐rich food biomolecules from tomato processing waste: Green recovery, biopolymer‐based stabilisation, functional food applications and health relevance

Food Biomacromolecules, EarlyView.
Abstract Tomato processing waste, particularly peel and pomace, is a sustainable and low‐cost source of lycopene‐rich food biomolecules. Lycopene, a lipophilic carotenoid with an extended conjugated structure, provides intense red colour, antioxidant potential and functional value to tomato‐derived ingredients.
Chandan Kumar Sahu, Mrinmoy Roy
wiley   +1 more source

Obtenção em meio supercrítico e fracionamento do extrato de Lippia dulcis Trev. [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2010Lippia dulcis Trev.
Oliveira, Patrícia Francisco de
core  

Supercritical fluid chromatography and scale up study

Acta Chimica Slovenica, 2014
The influence of process parameters on supercritical fluid chromatography (SFC) and scale-up on to the preparative scale was investigated. In this scope, dependency of pressure, temperature, type and concentration of modifier, and type of stationary ...
Miha Oman, Petra Kotnik, Mojca Škerget, Željko Knez   +3 more
doaj  

Simultaneous Determination of 20 Nitrogen-Containing Heterocyclic Compounds in Soil by Supercritical Fluid Chromatography–Tandem Mass Spectrometry

Molecules
Nitrogen-containing heterocyclic compounds (NHCs) are common environmental pollutants that need to be monitored due to their high toxicity. Typically, gas or liquid chromatography combined with mass spectrometric detection is used for this task. However,
Sergey A. Vakhrameev, Denis V. Ovchinnikov, Nikolay V. Ul’yanovskii, Dmitry S. Kosyakov   +3 more
doaj   +1 more source

Supercritical CO2 Extracts and Volatile Oil of Basil (Ocimum basilicum L.) Comparison with Conventional Methods

Separations, 2018
Interest in new products from aromatic plants as medical and nutritional compounds is increasing. The aim of this work was to apply different extraction methods, including the use of supercritical carbon dioxide extraction, and to test the antioxidant ...
José Coelho, Jerson Veiga, Amin Karmali, Marisa Nicolai, Catarina Pinto Reis, Beatriz Nobre, António Palavra   +6 more
doaj   +1 more source

The need to merge supercritical fluid chromatography into undergraduate curricula for the twenty-first century

Green Chemistry Letters and Reviews, 2021
Complementarity to liquid and gas chromatography, supercritical fluid chromatography (SFC) is becoming a mainstream separation technique. There is a global demand for more SFC users since ‘green’ method development has become a favorable target for ...
Tricia Naicker, Kamini Govender
doaj   +1 more source

Optimization of Ultrasound‐Assisted Extraction of Seabuckthorn (Hippophae salicifolia) Seed Oil With the Use of Response Surface Methodology

Future Postharvest and Food, EarlyView.
Ultrasound‐assisted extraction (UAE) of seabuckthorn seed oil enhanced yield (17.95%), antioxidant activity (IC50: 5.25 μg/mL), and carotenoid content (266.63 mg/100 g). The oil, rich in unsaturated fatty acids (83.15%), exhibited superior quality, thermal stability, and potential applications in food, cosmetics, and pharmaceuticals, making UAE a ...
Mrityunjoy Das, Baikuntha Jyoti Gogoi, Ajitabh Bora, D. V. Kamboj, N. L. Raju   +4 more
wiley   +1 more source

Essential Oils from Humulus Lupulus scCO₂ Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation

Molecules, 2018
Two different extraction methods were used for a comparative study of essential oils obtained from the Humulus lupulus scCO2 (sc-supercritical) extract: microwave-assisted hydrodistillation (MAHD) and conventional hydrodistillation (HD). As a result, the
Katarzyna Tyśkiewicz, Roman Gieysztor, Marcin Konkol, Jan Szałas, Edward Rój   +4 more
doaj   +1 more source