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Journal articles on the topic 'Organic solvent extractions'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

NSANGOU, ABDOURAMANE, DOINA SIBIESCU, PIERRE MARCEL ANICET NOAH, et al. "Benchmarking on Aloe vera Gel Extraction." Buletinul Institutului Politehnic din Iași, Secția Chimie și Inginerie Chimică 69, no. 1 (2023): 83–91. https://doi.org/10.5281/zenodo.7767181.

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<em>Aloe vera</em> gel is composed of more than 70% saccharide and polysaccharides is the transparent mucilage contained in the parenchymal cells of the fresh <em>Aloe vera</em> leaf. This study objective was to produce a comparison of a set of extraction methods of <em>Aloe vera</em> in the literature. The methodology used is the synthesis of a set of scientific articles, theses, dissertations dealing with the issue of <em>Aloe vera</em> gel extraction. The databases used are (Science Direct, Google Scholar, and ResearchGate). This work studied 6 types of extractions (traditional extraction,

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Roy, J. L., and W. B. McGill. "Flexible conformation in organic matter coatings: An hypothesis about soil water repellency." Canadian Journal of Soil Science 80, no. 1 (2000): 143–52. http://dx.doi.org/10.4141/s98-093.

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Some soils develop severe water repellency several years or decades following oil contamination. We previously reported that soil water repellency is completely eliminated by extraction with amphiphilic solvents, but barely reduced by extraction with nonpolar solvents. We report here on solvent-induced reversible soil water repellency. Our results indicate that: (i) water repellency is completely eliminated following extraction with amphiphilic solvent, but partially restored following subsequent exposure to nonpolar, non-H-bonding solvent; (ii) extraction with nonpolar, non-H-bonding solvent

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3

Rapinel, Vincent, Aziadé Chemat, Cyrille Santerre, et al. "2-Methyloxolane as a Bio-Based Solvent for Green Extraction of Aromas from Hops (Humulus lupulus L.)." Molecules 25, no. 7 (2020): 1727. http://dx.doi.org/10.3390/molecules25071727.

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The potential of using the bio-based solvent 2-methyloxolane, also known as 2-methyltetrahydrofuran or 2-MeTHF, as an alternative to petroleum solvents such as hexane, was investigated for the extraction of volatile compounds from hop cones (Humulus lupulus L.). Lab scale extractions were coupled with in silico prediction of solutes solubility to assess the technical potential of this bio-based solvent. The predictive approach was performed using the simulation software COSMO-RS (conductor like screening model for real solvants) and showed that the 2-methyloxolane is as good as or better than

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Lawrence, James F., Barbara Niedzwiadek, and Peter M. Scott. "Effect of Temperature and Solvent Composition on Extraction of Fumonisins B1 and B2 from Corn Products." Journal of AOAC INTERNATIONAL 83, no. 3 (2000): 604–11. http://dx.doi.org/10.1093/jaoac/83.3.604.

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Abstract Fumonisins B1 and B2 were extracted from naturally contaminated corn products by using different extraction solvent compositions (methanol–water, acetonitrile–methanol–water, ethanol–water, and 100% water) and a range of temperatures from ambient to 150°C. Ground samples of several corn products and 1 rice sample were mixed with an adsorbent material (Hydromatrix™), and the fumonisins were extracted in 2 sequential 5 min static extractions at various temperatures. The combined extracts were cleaned up and analyzed by reversed-phase liquid chromatography with fluorescence detection aft

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5

Zhang, Jingyi, Bin Jiang, Zhiheng Wang, et al. "Molecular characterisation of ambient aerosols by sequential solvent extractions and high-resolution mass spectrometry." Environmental Chemistry 15, no. 3 (2018): 150. http://dx.doi.org/10.1071/en17197.

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Environmental contextOrganic compounds generally make a large contribution to ambient aerosol fine particles, and can influence atmospheric chemistry. Solvent extraction before mass spectrometry is widely used for the determination of organic compounds in aerosols, but the molecular selectivity of different solvents is unclear. We extracted an aerosol sample with various solvents and show how the organic compound profile obtained by mass spectrometry changes depending on the extracting solvent. AbstractFor a comprehensive characterisation of organic compounds in aerosols, samples collected on

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Lezoul, Nour El Houda, Mohamed Belkadi, Fariborz Habibi, and Fabián Guillén. "Extraction Processes with Several Solvents on Total Bioactive Compounds in Different Organs of Three Medicinal Plants." Molecules 25, no. 20 (2020): 4672. http://dx.doi.org/10.3390/molecules25204672.

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The extraction of secondary metabolites by water, MeOH:water (8:2) containing NaF, methanol, ethanol and acetone (all of them diluted (7:3) in water)from the different parts (leaves, flowers, stems and roots) of Passiflora caerulea L., Physalis peruviana L. and Solanum muricatum Aiton via decoction and maceration methods was studied. The highest extraction yields were recorded by methanol for decoction and acetone for maceration. The total polyphenol content (TPC) obtained by decoction had the highest TPC contents, and MeOH containing NaF was the best solvent for the extraction of TPC. Macerat

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7

Ceccon, Luciano, Alessandro Turello, Graziella Mocellin, and Luigi Colugnati. "Liquid Desorption of Organic Solvents from Industrial Sludges." Journal of AOAC INTERNATIONAL 72, no. 6 (1989): 1010–14. http://dx.doi.org/10.1093/jaoac/72.6.1010.

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Abstract Analysis of organic solvent residues in industrial sludges is usually based on preliminary extraction of solvents from the matrix, followed by gas chromatographic determination. Liquid desorption with carbon disulfide is one of the most frequently used methods of recovery. Because of the number of parameters that can affect desorption efficiencies, we evaluated recoveries from 2 wastes with different physicochemical characteristics. Results were similar for both matrixes. The study of the kinetics of recovery showed that equilibrium was reached within about 5 min. On the other hand, s

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Vieira, Eny M., and Francis I. Onuska. "Extraction and Determination of RDX and HMX in Water." Water Quality Research Journal 34, no. 3 (1999): 533–44. http://dx.doi.org/10.2166/wqrj.1999.026.

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Abstract The analysis of energetic materials such as RDX and HMX in water at trace levels was accomplished by using micro-extraction by miscible solvents, such as acetonitrile, 2-propanol and acetone, and salting out the organic phase. This paper compares the results obtained with solid-phase extraction (SPE) to those obtained by demixing techniques for spiked Milli-Q water and an unfiltered lake water. A review of the data indicates that demixing with acetonitrile-sodium chloride and 2-propanol ammonium sulfate gives better extraction recoveries than solid-phase extraction. Salting-out extrac

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9

N.A., Abdullabekova, and Usmanalieva Z.U. "Study of Extraction Conditions of Indapamid Drug from Aqueous Environment." Study of Extraction Conditions of Indapamid Drug from Aqueous Environment 09, no. 04 (2023): 210–12. https://doi.org/10.5281/zenodo.7813944.

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There were studied moderate conditions for the extraction of indapamide from an aqueous medium (the influence of the pH–environment, the nature of the organic solvent, the effect of electrolytes and repeated extractions). It was determined that, when the pH of the solution medium was 4.01, when the number of extractions was increased five times using ethyl acetate as an extractant, 94.17% of indapamide was extracted under the influence of the electrolyte can be extracted.

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10

Lavenburg, Valerie M., Kurt A. Rosentrater, and Stephanie Jung. "Extraction Methods of Oils and Phytochemicals from Seeds and Their Environmental and Economic Impacts." Processes 9, no. 10 (2021): 1839. http://dx.doi.org/10.3390/pr9101839.

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Over recent years, the food industry has striven to reduce waste, mostly because of rising awareness of the detrimental environmental impacts of food waste. While the edible oils market (mostly represented by soybean oil) is forecasted to reach 632 million tons by 2022, there is increasing interest to produce non-soybean, plant-based oils including, but not limited to, coconut, flaxseed and hemp seed. Expeller pressing and organic solvent extractions are common methods for oil extraction in the food industry. However, these two methods come with some concerns, such as lower yields for expeller

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11

Nieh, C. D., and H. E. Snyder. "Solvent extraction of oil from soybean flour II— pilot plant and two-solvent extractions." Journal of the American Oil Chemists Society 68, no. 4 (1991): 250–53. http://dx.doi.org/10.1007/bf02657619.

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12

Suljkanović, Mersiha, Jasmin Suljagić, Edita Bjelić, Ante Prkić, and Perica Bošković. "Chemical Characterization of Terpene-Based Hydrophobic Eutectic Solvents and Their Application for Pb(II) Complexation during Solvent Extraction Procedure." Molecules 29, no. 9 (2024): 2122. http://dx.doi.org/10.3390/molecules29092122.

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Solvents prepared from natural terpenes (menthol and thymol), as H-bond acceptors, and a series of organic acids (chain lengths of 8, 10, and 14 C atoms), as H-bond donors, were characterized and tested as reaction media for liquid–liquid extraction purposes. Due to their high hydrophobicity, they seem to be promising alternatives to conventional (nonpolar and toxic) solvents, since they possess relatively less toxic, less volatile, and consequently, more environmentally friendly characteristics. Assuming that the equilibrium is established between solvent and analyte during a ligandless proce

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13

Quan, Nguyen Van, Do Tan Khang, Luan Thi Dep, Truong Ngoc Minh, Nakagoshi Nobukazu, and Tran Dang Xuan. "The Potential Use of a Food-Dyeing Plant Peristrophe bivalvis (L.) Merr. in Northern Vietnam." International Journal of Pharmacology, Phytochemistry and Ethnomedicine 4 (August 2016): 14–26. http://dx.doi.org/10.18052/www.scipress.com/ijppe.4.14.

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An investigation on the current usage status and experience in usingPeristrophe bivalvis(L.) Merr. was conducted in the mountainous region of Northern Vietnam. Five varieties were collected and recorded as a source of foodstuff-dyeing and medicinal plants on indigenous knowledge of ethnic minorities in the study area, of which, three varieties were dyed purple, one red and one yellow-orange; with two varieties being used for the treatment of haemoptysis, dysentery, liver disease, kidney failure, and jaundice. Two extraction methods using organic solvents and aqueous solvent were applied to spe

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14

Cvetkovski, Vladimir, Vesna Conic, Milovan Vukovic, Goran Stojanovski, and Milena Cvetkovska. "Construction of isotherms in solvent extraction of copper." Chemical Industry 63, no. 4 (2009): 309–12. http://dx.doi.org/10.2298/hemind0904309c.

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The aim of this work is construction of equilibrium isotherms in solvent extraction. Technological parameters have been predicted for treatment of mine water by solvent extraction and electrowining. Two stages of extractions and one stage of stripping have been predicted for copper recovery by analyzing the equilibrium isotherms. The process was performed on mine water with 2,5 g/dm3 Cu2+, 3 g/dm Fe2+, pH 1,8, using 9 vol% LIX 984N in kerosene (organic solvent), with 95 and 98% stages efficiencies, respectively. This course produced an advanced electrolyte solution, suitable for electrowining

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15

Mnayer, Dima, Anne-Sylvie Fabiano-tixier, Emmanuel Petitcolas, and Karine Ruiz. "Extraction of green absolute from thyme using ultrasound and sunflower oil." Resource-Efficient Technologies, no. 1 (March 12, 2017): 12–21. http://dx.doi.org/10.18799/24056529/2017/1/112.

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Absolute is the plant aroma isolate mostly used in the food and fragrance sectors. The use of organic solvents constitutes the most commonly used method for obtaining this aroma. However, this technique may leave trace amounts of solvents which are considered undesirable for these industries. In this work, a new green extraction approach was implemented using ultrasound (US) with sunflower oil (SO) as a natural solvent to produce green absolute from thyme (Thymus vulgaris). US optimal conditions for absolute yield were investigated using response surface methodology (RSM) and compared to conve

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16

Corazza, M.L., E.L.N. Escobar, D.T. Melfi, and L.P. Ramos. "Extraction of lipids from waste biomass using compressed solvents: Kinetic and thermodynamic aspects." Bulgarian Chemical Communications 51, Special Issue B (2019): 39–45. https://doi.org/10.34049/bcc.51.B.013.

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Traditional oil extraction involves organic solvents and represents both health and environmental concerns; besides, the large spend of these solvents is costly. Thus, safer alternative methods of extractions arouse interest. Supercritical fluid extraction (SFE), pressurized liquid extraction (PLE) and gas-expanded liquid (GXL) extraction can be applied to a full range of matrices. This paper aimed to briefly discuss some aspects related to the oil extraction from different biomasses using scCO2 + organic solvents extraction technique in semi-batch scheme and highlight some kinetic and thermod

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17

Hopper, Marvin L., Jerry W. King, James H. Johnson, Alberta A. Serino, and Robert J. Butler. "Multivessel Supercritical Fluid Extraction of Food Items in Total Diet Study." Journal of AOAC INTERNATIONAL 78, no. 4 (1995): 1072–78. http://dx.doi.org/10.1093/jaoac/78.4.1072.

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Abstract An off-line, large capacity, multivessel supercritical fluid extractor (SFE) was designed and constructed for extraction of large samples. The extractor can simultaneously process 1–6 samples (15–25 g) by using supercritical carbon dioxide (SC–CO2), which is relatively nontoxic and nonflammable, as the solvent extraction medium. Lipid recoveries for the SFE system were comparable to those obtained by blending or Soxhlet extraction procedures. Extractions at 10 000 psi, 80°C, expanded gaseous CO2 flow rates of 4–5 L/min (35°C), and 1–3 h extraction times gave reproducible lipid recover

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Bajkacz, Sylwia, Jakub Adamek, and Anna Sobska. "Application of Deep Eutectic Solvents and Ionic Liquids in the Extraction of Catechins from Tea." Molecules 25, no. 14 (2020): 3216. http://dx.doi.org/10.3390/molecules25143216.

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This work aimed to comprehensively evaluate the potential and effectiveness of deep eutectic solvents (DESs) in the extraction of seven catechins from various tea samples. Different combinations of DES were used, consisting of Girard’s reagent T (GrT) in various mixing ratios with organic acids and choline chloride. The yields of the DES extractions were compared with those from ionic liquids and conventional solvent. DES contained malic acid, as the hydrogen bond donors showed a good solubility of catechins with different polarities. In the second part of the study, a solid-phase extraction (

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19

Merzic, Sabina, Ajla Sehanovic, Amila Music, et al. "Influence of solvents on polyphenol content and antioxidant activity of fig leaf extracts obtained by maceration and ultrasonic extraction." International Journal of Advanced Chemistry 9, no. 2 (2021): 70. http://dx.doi.org/10.14419/ijac.v9i2.31590.

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In this paper, the polyphenol content and antioxidant activity of fig leaf extracts were analyzed. Extraction was performed with methanol, ethanol, acetone and their aqueous mixtures (50:50 v/v). Extractions were performed with stirring at 300 rpm on a vibromix and ultrasonic bath for 15 minutes. The polyphenol content was determined spectrophotometrically using the Folin-Ciocalteu test. Antioxidant capacity was tested using the FRAP and DPPH methods. The results showed a significant effect of extraction of bioactive components using an organic solvent:water mixture in relation to the organic

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Weinhold, Tatiana de S., Louisiane F. V. Bresciani, Cláudia W. Tridapalli, Rosendo A. Yunes, Haiko Hense, and Sandra R. S. Ferreira. "Polygala cyparissias oleoresin: Comparing CO2 and classical organic solvent extractions." Chemical Engineering and Processing: Process Intensification 47, no. 1 (2008): 109–17. http://dx.doi.org/10.1016/j.cep.2007.08.007.

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21

Sas, Domínguez, and González. "Recovery and Elimination of Phenolic Pollutants from Water Using [NTf2] and [Nf2]-Based Ionic Liquids." Applied Sciences 9, no. 20 (2019): 4321. http://dx.doi.org/10.3390/app9204321.

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At present, pollution is one of the most important problems worldwide. Industrial growth makes it necessary to develop techniques to remove pollutant substances from water, since water is an important natural source for life. One of these techniques is liquid–liquid extraction, which is used to remove phenolic compounds from wastewaters. Volatile organic compounds are used as common extraction solvents in liquid–liquid extractions; nevertheless, some of their properties, such as toxicity and volatility, make it necessary to replace them with other less toxic solvents. In this work, the capabil

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22

Fariz, Ramadhani Kemal, Yi Hu, and Xi Zhi Dong. "Enhanced Purification of Mixed Hydroxide Precipitate Leachates via P<sub>204</sub>: A Study on Process Efficiency." Key Engineering Materials 1014 (June 10, 2025): 77–84. https://doi.org/10.4028/p-x0j0tp.

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The purification of mixed hydroxide precipitate leaching solution from impurities was conducted via solvent extraction using the commercial extractant di(2-ethylhexyl) phosphoric acid (P204 or D2EHPA). The impurities that were removed are Mn2+, Cu2+, Ca2+, Mg2+, and Zn2+, while the desired metals remained in aqueous phase which are Co2+ and Ni2+. Solvent extractions were studied on a batch scale to improve the effect of organic-to-aqueous phase ratio, extractant concentration, saponification rate, and feed solution pH to the removal of impurities. High selectivity of impurities was obtained at

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Sládek, Petr, Oldřich Navrátil, and Petr Linhart. "Extraction of Selected Lanthanoids and Scandium with Bis(2-ethylhexyl)hydrogenphosphate in 1,1,2,2-Tetrachlorodifluoroethane." Collection of Czechoslovak Chemical Communications 57, no. 8 (1992): 1647–54. http://dx.doi.org/10.1135/cccc19921647.

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A study was made of the extraction of Ce, Pm, Eu, Tm and Sc(III) from aqueous into organic medium of 1,1,2,2-tetrachlorodifluoroethane (CFC-112) using bis(2-ethylhexyl)hydrogenphosphate (HDEHP) as extracting reagent. On the basis of earlier work which demonstrated the usefulness of using this type of solvent for extractions with dibutylhydrogenphosphate (HDBP) and also the possibility of using CFC-112 for converting the metal chelates formed to the solid phase, the work was concentrated particularly on the dependence of the extraction of selected lanthanoids on the analytical concentration of

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Dardavila, Maria Myrto, Sofia Pappou, Maria G. Savvidou, et al. "Extraction of Bioactive Compounds from C. vulgaris Biomass Using Deep Eutectic Solvents." Molecules 28, no. 1 (2023): 415. http://dx.doi.org/10.3390/molecules28010415.

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C. vulgaris microalgae biomass was employed for the extraction of valuable bioactive compounds with deep eutectic-based solvents (DESs). Particularly, the Choline Chloride (ChCl) based DESs, ChCl:1,2 butanediol (1:4), ChCl:ethylene glycol (1:2), and ChCl:glycerol (1:2) mixed with water at 70/30 w/w ratio were used for that purpose. The extracts’ total carotenoid (TCC) and phenolic contents (TPC), as well as their antioxidant activity (IC50), were determined within the process of identification of the most efficient solvent. This screening procedure revealed ChCl:1,2 butanediol (1:4)/H2O 70/30

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Benassi, Laura, Ivano Alessandri, and Irene Vassalini. "Assessing Green Methods for Pectin Extraction from Waste Orange Peels." Molecules 26, no. 6 (2021): 1766. http://dx.doi.org/10.3390/molecules26061766.

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In this work, we assess three different methods for the extraction of pectin from waste orange peels, using water as extracting solvent. “Hot-water”, Rapid Solid Liquid Dynamic (RSLD) and microwave-assisted extractions have been compared and evaluated in terms of amount and quality of extracted pectin, as well as embodied energy. This analysis provides useful guidelines for pectin production from food waste according to green procedures, enabling the identification of acidic “hot-water” as the most sustainable extraction route.

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Castejón, Natalia, Pilar Luna, and Francisco Javier Señoráns. "Alternative oil extraction methods from Echium plantagineum L. seeds using advanced techniques and green solvents." Food Chemistry 244 (April 1, 2018): 75–82. https://doi.org/10.1016/j.foodchem.2017.10.014.

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The edible oil processing industry involves large losses of organic solvent into the atmosphere and long extraction times. In this work, fast and environmentally friendly alternatives for the production of echium oil using green solvents are proposed. Advanced extraction techniques such as Pressurized Liquid Extraction (PLE), Microwave Assisted Extraction (MAE) and Ultrasound Assisted Extraction (UAE) were evaluated to efficiently extract omega-3 rich oil from Echium plantagineum seeds. Extractions were performed with ethyl acetate, ethanol, water and ethanol:water to develop a hexane-free pro

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Artilha-Mesquita, Carla Adriana Ferrari, Ana Paula Stafussa, Patrícia Daniele Silva dos Santos, Oscar de Oliveira Santos, Silvio Claudio da Costa, and Grasiele Scaramal Madrona. "Extraction of Bioactive Compounds from the Fruits of Jambolan (Syzygium cumini (L.)) Using Alternative Solvents." Plants 13, no. 15 (2024): 2065. http://dx.doi.org/10.3390/plants13152065.

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This work demonstrates the effectiveness of using alternative solvents to obtain jambolan extracts with a high content of bioactive compounds compared to conventional organic solvents, being the first study to evaluate the best ecological solvent alternative for Syzygium cumini (L.) Skeels. Five alternative solvents were used for extraction: water at 25 °C (W25), water at 50 °C (W50), water at 75 °C (W75), water with citric acid at 2.4% (CA2), and water with citric acid at 9.6% (CA9) in comparison with three conventional solvents: ethanol (EtOH), water with ethanol at 50% (WE), and water with

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Thabit, Hadeel Mohammed. "Improved fatty acid extraction from microalgae with a novel combined process pulsed electric field-supercritical CO₂ extraction." Wasit Journal for Pure sciences 3, no. 4 (2024): 252–59. https://doi.org/10.31185/wjps.568.

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Microalgae are a sustainable alternative to source for high-value fatty acids (FAs) with production potential nutraceutical, pharmaceutical, and biofuel applications. Traditional extraction techniques, however, have faced challenges like low yields, solvent toxicity and energy-intensive operations. A novel integrated PEF-scCO2 extraction strategy promise to release the maximum fatty acids yield with optimal quality directly from Chlorella vulgaris without even needing organic extraction solvents. The FAs were selectively extracted from the PEF pre-treated cells as step 1 of the tri-extraction

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Fu, Lian, Su Li, Xiaoyu Men, et al. "Optimizing the Extraction and Enrichment of Luteolin from Patrinia villosa and Its Anti-Pseudorabies Virus Activity." Molecules 28, no. 13 (2023): 5005. http://dx.doi.org/10.3390/molecules28135005.

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Luteolin from Patrinia villosa exhibits strong antiviral activity. Here, the conditions for extracting and enriching luteolin from P. villosa were optimized. Response surface methodology was used to determine the optimal extraction parameters in terms of reflux time, solvent ratio, extraction temperature, material-to-liquid ratio, and number of extractions. Thereafter, a macroporous resin method was used to enrich luteolin from P. villosa. Finally, the following optimal extraction and enrichment conditions were established: an extraction time of 43.00 min, a methanol/hydrochloric acid solvent

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Li, Jianwei. "Evaluation of Thermodynamic and Kinetic Contributions to Over-Extraction of Extractables by Nonpolar Organic Solvents in Comparison to Lipids in Exhaustive and Exaggerated Extractions of Medical Devices Based on Abraham Solvation Model and Solvent–Material Interactions Using Low-Density Polyethylene as a Representative Material." Liquids 4, no. 1 (2024): 117–47. http://dx.doi.org/10.3390/liquids4010006.

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The thermodynamic and kinetic contributions to the over-extraction of extractables by nonpolar organic solvents relative to biological lipids in exhaustive and exaggerated extractions of medical devices are studied based on the Abraham solvation model and solvent–material interactions, using low-density polyethylene (LDPE) as an exemplary material. The thermodynamic effect is evaluated by the partition constant of extractables between LDPE and extraction solvents, hexane and lipids, defined as the concentration in the polymer phase divided by the concentration in the solvent phase. The Abraham

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Sharma, Rahul, and Shailendra Kumar. "Effects of extraction solvents on chemical profiling of Trailokya Vijaya Vati using GC-MS." Research Journal of Chemistry and Environment 28, no. 5 (2024): 83–87. http://dx.doi.org/10.25303/285rjce083087.

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In India, Ayurveda is a substitute medicine system in the Indian subcontinent with historical roots. Trailokya Vijaya Vati is the most potent classical medicine for diseases pertaining to chronic pain, insomnia and anxiety. It is mainly prepared by the plants Cannabis sativa and Bambusa arundianacea. The present work is to determine the types of bioactive compounds present in different organic solvent extractions using GC-MS instruments. The GC-MS analysis of Trailokya Vijaya Vati has shown some promising compounds like Cannabidiol, Phytol, Cannabigerol, Campesterol, Humulene and Caryophyllene

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Merdassa, Yared, Jing-fu Liu, and Negussie Megersa. "Development and Validation of One-Step Ultrasound-Assisted Extraction for Simultaneous Determination of Multiclass Fungicides in Soils." Journal of AOAC INTERNATIONAL 98, no. 1 (2015): 192–200. http://dx.doi.org/10.5740/jaoacint.14-033.

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Abstract A rapid, efficient, and simple one-step ultrasound-assisted extraction (UAE) method was developed forthe analysis of seven fungicides (cymoxanil, metalaxyl, mandipropamid, folpet, chlorothalonil, kresoxim-methyl, and famoxadone) in horticultural soils. Analytes in the samples were determined by HPLC with variable wavelength detection. Key parameters that influence the UAE procedure were optimized, such as the nature and volume of extraction solvent, number of sonication steps, and sonication time. The highest extraction efficiencies in the range of 61.1–87.8% were obtained by using on

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Lou, Ching Wen, Chao Tsang Lu, Ming Chun Sie, and Jia Horng Lin. "Study on Efficacy of Various Solvents and Extractions on Repelling Forcipomyia taiwana." Advanced Materials Research 910 (March 2014): 186–89. http://dx.doi.org/10.4028/www.scientific.net/amr.910.186.

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The bites of Forcipomyia taiwana (F. taiwana) cause swelling and pruritus in sensitive skins, and are often prevented by synthetic repellents. The commercially available repellents are composes of N,N-diethyl-3-methylbenzamide, long-term use of which may results in negative influence on skins as well as nervous and immune systems. This study first examines how different organic solvents influence on the repellent effect onF. taiwana,after which solvents are used for the extraction ofCinnamomum osmophloeumKaneh,Cymbopogon excavates,Mentha,Rosmarinus officinalis,Salvia officinalis, andEucalyptus

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Chanted, Jaruwan, Visaka Anantawat, Chantira Wongnen, et al. "Valorization of Pig Brains for Prime Quality Oil: A Comparative Evaluation of Organic-Solvent-Based and Solvent-Free Extractions." Foods 13, no. 17 (2024): 2818. http://dx.doi.org/10.3390/foods13172818.

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Pig processing industries have produced large quantities of by-products, which have either been discarded or used to make low-value products. This study aimed to provide recommendations for manufacturing edible oil from pig brains, thereby increasing the value of pork by-products. The experiment compared non-solvent extraction methods, specifically wet rendering and aqueous saline, to a standard solvent extraction method, the Bligh and Dyer method, for extracting oil from pig brains. The yield, color, fatty acid profile, a number of lipid classes, and lipid stability against lipolysis and oxid

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Vergallo, Cristian, Elisa Panzarini, and Luciana Dini. "High performance liquid chromatographic profiling of antioxidant and antidiabetic flavonoids purified from Azadirachta indica (neem) leaf ethanolic extract." Pure and Applied Chemistry 91, no. 10 (2019): 1631–40. http://dx.doi.org/10.1515/pac-2018-1221.

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Abstract Azadirachta indica (neem) is a tropical and semi-tropical tree native to the whole Indian subcontinent. Neem leaves are rich in flavonoids, which exhibit important pharmacological activities targeting almost all human organs. In order to produce a purified extract of neem leaves enriched of antioxidant and antidiabetic flavonoids, the ethanolic extract of neem leaves has been further undergone to liquid-liquid extractions by using three different organic solvents, i.e. dichloromethane, n-butanol and ethyl acetate. Qualitative and quantitative analyses were performed on the extracts ob

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A.V.L.N.S.H., Hariharan. "Extraction of Iron III with Tributylphosphine Oxide from Hydrochloric and Sulphuric Acid Solutions." International Journal of Trend in Scientific Research and Development 1, no. 4 (2017): 174–78. https://doi.org/10.31142/ijtsrd112.

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Solvent extraction of iron III from aqueous hydrochloric and sulphuric acid solutions was carried out using Tri butyl phosphine oxide TBPO in chloroform as extractant. Stripping of iron III from the organic phase was attempted with 2.0M NaOH. Extractions were nearly quantitative with both the acid solutions. Based on the results obtained, estimation of iron in food samples as well alloys was attempted successfully. A.V.L.N.S.H. Hariharan "Extraction of Iron (III) with Tributylphosphine Oxide from Hydrochloric & Sulphuric Acid Solutions" Published in International Journal of Trend

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Szreder, Tomasz, and Rafał Kocia. "Electron beam irradiation of r-SANEX and i-SANEX solvent extraction systems: analysis of gaseous products." Nukleonika 60, no. 4 (2015): 899–905. http://dx.doi.org/10.1515/nuka-2015-0157.

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Abstract 1-Octanol/kerosene mixtures and water contacted with organic solvents were used as model solutions for r-SANEX and i-SANEX extractions systems. Investigations aimed on a quantitative evaluation of gaseous products generated in these systems under exposure to an electron beam irradiation. Influence of O2, HNO3 and the presence of model ligands and complexes on the radiation chemical yields was studied. Relatively high G(H2) values (up to 420 nmol·J-1) for the organic phase compromise the safety issues of the extraction process and should be considered on the stage of extraction apparat

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Sankar, Jayaganesh. "Extraction of Lawsone Active from the Henna Leaves (Lawsonia Inermis) by Solvent Extraction Method." Medicinal and Analytical Chemistry International Journal 7, no. 2 (2023): 1–7. http://dx.doi.org/10.23880/macij-16000187.

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Natural hair colour technology recent days very much pronounced by the consumer due to the awareness about the carcinogenic problem of synthetic dyes. Natural hair colour or dyes are safe to use, it does not harm to the hair, does not bleach. Among the various natural hair colour technique, the henna hair colour is very much pronounced in south Asia, since the material readily available for colouring. In this present attempt to aim to identify the potential solvent for the extraction and make the stable format of extracted lawsone for the hair colour application. Present study results immense

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Mudrik, Jared M., Michael D. M. Dryden, Nelson M. Lafrenière, and Aaron R. Wheeler. "Strong and small: strong cation-exchange solid-phase extractions using porous polymer monoliths on a digital microfluidic platform." Canadian Journal of Chemistry 92, no. 3 (2014): 179–85. http://dx.doi.org/10.1139/cjc-2013-0506.

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We present the first method for digital microfluidics-based strong cation-exchange solid-phase extractions. Digital microfluidics is a microscale fluid handling technique in which liquid droplets are actuated over an array of electrodes by electrodynamic forces. Strong cation exchange has gained considerable importance in the field of proteomics as a separation mode for protein and peptide extractions. The marriage of these two techniques is achieved by incorporating sulphonate-functionalised porous polymer monolith discs onto digital microfluidic chips. By manipulating sample and solvent drop

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Suwal, Shyam, and Alice Marciniak. "Technologies for the Extraction, Separation and Purification of polyphenols – A Review." Nepal Journal of Biotechnology 6, no. 1 (2019): 74–91. http://dx.doi.org/10.3126/njb.v6i1.22341.

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Polyphenols are high molecular weight, organic molecules mainly found in plant kingdom. They are mostly known for their positive impact on health, specifically for their antioxidant activity. Indeed, they are widely studied for the prevention of multiple diseases such as cancer, inflammatory, cardiovascular and neurodegenerative diseases. Nevertheless, extractions of these growing interest molecules remain challenging using conventional methods such as solvent extraction. That is why recent researches have focused on improving the extraction of polyphenol by using different technologies such a

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Vázquez-Espinosa, Mercedes, Ana V. González-de-Peredo, Estrella Espada-Bellido, et al. "Ultrasound-Assisted Extraction of Two Types of Antioxidant Compounds (TPC and TA) from Black Chokeberry (Aronia melanocarpa L.): Optimization of the Individual and Simultaneous Extraction Methods." Agronomy 9, no. 8 (2019): 456. http://dx.doi.org/10.3390/agronomy9080456.

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Chokeberry (Aronia melanocarpa L.) contains a large number of bioactive compounds, which make of it a highly nutritional and antioxidant food with anti-cancer and anti-inflammatory properties. It has been recently seen its consumption increased because of its interesting composition and properties as a functional food. The ultrasound-assisted extraction method has been optimized, since it is a simple and fast technique to extract phenolic compounds, as well as anthocyanins, not only separately but also simultaneously. Multiple response has been optimized and demonstrated an effectiveness level

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Taylor, Bradley M., and Kevin B. Thurbide. "Characteristics of a novel on-line micro pressurized liquid extraction method." Canadian Journal of Chemistry 98, no. 10 (2020): 623–29. http://dx.doi.org/10.1139/cjc-2020-0107.

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A novel on-line micro pressurized liquid extraction (μPLE) method is introduced, which directly interfaces miniaturized solid sample preparation with HPLC for fast analysis. The technique employs rapid heating to remove analytes from 5–10 mg samples in typically 20–40 s using only about 300 μL of solvent. The resulting extract is then internally transferred to an HPLC injector for chromatographic analysis. Results show that good analyte recoveries can be achieved, similar to conventional PLE and off-line μPLE approaches, without manual sample handling. For example, 103% ± 3% (n = 4) of the ace

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Nascimento, Irajá Do, Nathália Christine Vieceli, Michele Schmitz, and Fernanda Glaeser. "Study of Endocrine Disruptors in the Sediment of a South Brazilian River." Advanced Materials Research 1120-1121 (July 2015): 862–66. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.862.

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This study investigated the occurrence of di (2-ethylhexyl) phthalate (DEHP) di-n-butylphthalate (DBP) and bisphenol A (BPA) in river sediment. The samples were collected from three selected points and extracted by sonication, using n-hexane and ethanol. The organic extracts were analyzed by gas chromatography with flame ionization detection (GC/FID). DBP and BPA were not detected. The average concentrations of DEHP range from 0.72 (±0.04) to 27.90 (± 3.05) ng g-1 of sediment. The best solvent for the extractions was n-hexane. However ethanol also shows good extraction yields of DEHP. These re

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Liu, Andrew W., Alejandro Villar-Briones, Nicholas M. Luscombe, and Charles Plessy. "Automated phenol-chloroform extraction of high molecular weight genomic DNA for use in long-read single-molecule sequencing." F1000Research 11 (February 28, 2022): 240. http://dx.doi.org/10.12688/f1000research.109251.1.

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Background: Automation has increasingly become more commonplace in the research laboratory workspace. The introduction of articulated robotic arms allows the researcher more flexibility in the tasks a single piece of automated machinery can perform. We set out to incorporate automation in processing of genomic DNA organic extractions to increase throughput and limit researchers to the exposure of organic solvents. Methods: In order to automate the genome sequencing pipeline in our laboratory, we programmed a dual-arm anthropomorphic robot, the Robotic Biology Institute's Maholo LabDroid, to pe

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Samarakoon, Kalpa W., Ji-Hyeok Lee, E. Dilip De Silva, et al. "Bioactivity evaluation of organic solvent extractions of Ganoderma lucidum: a Sri Lankan basidiomycete." Journal of the National Science Foundation of Sri Lanka 41, no. 3 (2013): 249. http://dx.doi.org/10.4038/jnsfsr.v41i3.6049.

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Dr. D. Valli Sowbhagyam. "Ionic Liquids as Green Solvents: A Comprehensive Review." International Research Journal on Advanced Engineering Hub (IRJAEH) 2, no. 02 (2024): 220–24. http://dx.doi.org/10.47392/irjaeh.2024.0035.

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Common reaction media, volatile organic solvents (VOS), contribute significantly to air pollution and pose challenges in separation and recycling processes. As environmental awareness grows, researchers are focusing on developing alternative, eco-friendly solvent systems to replace these traditional VOS. Ionic liquids (ILs) have emerged as promising "green" solvents due to their extremely low vapor pressure and high thermal stability, providing advantages in containment, product recovery, and recyclability. ILs exhibit varying stability to moisture and miscibility with molecular liquids, and t

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R., Sarkar (Sain), Dey P., and Basu S. "Study of synergic effect of trioctyl phosphine oxide on the solvent extraction of cobalt(II)-TT A complex." Journal of Indian Chemical Society Vol. 90, Jan 2013 (2013): 49–54. https://doi.org/10.5281/zenodo.5764060.

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department of Chemistry, The University of Burdwan, Burdwan-713 104, West Bengal, India <em>E-mail</em> : basu _ sukalyan@yahoo.co.in <em>Manuscript received online 06 February 2012, revised 04 April 2012, accepted 11 April 2012</em> Liquid-liquid extraction of cobalt(II) with theonyl tritluoro acetone (TTA) and enhancement effects of trioctyl phosphine oxide on such extractions in various organic media have been studied by radiotracer technique. Strong ternary adduct complex formation were reported. Effect of temperature variation established such processes as spontaneous, enthalpy favoured w

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Mokhtari, Bahram, and Kobra Pourabdollah. "Extraction of s-block metals by nano-baskets of calix[4]crown-3." Canadian Journal of Chemistry 90, no. 6 (2012): 560–66. http://dx.doi.org/10.1139/v2012-020.

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Three kinds of nano-baskets including 1,2-alternate and cone conformers of di-ionizable p-tert-butylcalix[4]arene-1,2-crown-3 and the cone conformer of p-tert-butylcalix[4]arene-1,2-thiacrown-3 were synthesized and the competitive solvent extractions of alkali and alkaline earth metal cations were studied. The novelty of this study is including three binding units of the calixarene’s bowl, the crown ether’s ring, and electron-donor ionizable moieties in a unique scaffold, in which their sizes were selected based upon their complexation ability to show equal binding tendency towards the cations

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Jakupović, Lejsa, Marko Kalvarešin, Karla Bukovina, Valentina Poljak, Lovorka Vujić та Marijana Zovko Končić. "Optimization of Two Eco-Friendly Extractions of Black Medick (Medicago lupulina L.) Phenols and Their Antioxidant, Cosmeceutical, α-Glucosidase and α-Amylase Inhibitory Properties". Molecules 26, № 6 (2021): 1610. http://dx.doi.org/10.3390/molecules26061610.

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Medicago lupulina is an ancient edible plant from the Fabaceae family. In this work, two eco-friendly methods for extraction of bioactive phenolics from M. lupulina were developed using mixtures of water with two non-toxic, skin- and environmentally-friendly polyol solvents: glycerol and polypropylene glycol. Ultrasound-assisted extractions were optimized using a Box–Behnken design. The independent variables were the concentration of organic solvent in water (X1), extraction temperature (X2) and time (X3), while the response was phenolic content. The optimum conditions for extraction of polyph

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Mocan, Andrei, Alina Diuzheva, Sabin Bădărău, et al. "Liquid Phase and Microwave-Assisted Extractions for Multicomponent Phenolic Pattern Determination of Five Romanian Galium Species Coupled with Bioassays." Molecules 24, no. 7 (2019): 1226. http://dx.doi.org/10.3390/molecules24071226.

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Background: Galium is a plant rich in iridoid glycosides, flavonoids, anthraquinones, and small amounts of essential oils and vitamin C. Recent works showed the antibacterial, antifungal, antiparasitic, and antioxidant activity of this plant genus. Methods: For the determination of the multicomponent phenolic pattern, liquid phase microextraction procedures were applied, combined with HPLC-PDA instrument configuration in five Galium species aerial parts (G. verum, G. album, G. rivale, G. pseudoaristatum, and G. purpureum). Dispersive Liquid–Liquid MicroExtraction (DLLME) with NaCl and NAtural

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