Results 61 to 70 of about 5,024,379 (232)

Subcritical Water for Recovery of Polyphenols from Comfrey Root and Biological Activities of Extracts

Acta Chimica Slovenica, 2019
In the present study, subcritical water was used for extraction of bioactive compounds of Symphytum officinale root. Temperature (120–200 °C), extraction time (10–30 min) and HCl concentration in extraction solvent (0–1.5%) were investigated as ...
Jelena Vladić, Nataša Nastić, Tatjana Stanojković, Željko Žižak, Jelena Čakarević, Ljiljana Popović, Senka Vidovic   +6 more
doaj   +1 more source

Porous Carbon Materials for Carbon Dioxide Capture

Carbon Energy, EarlyView.
This work aims to address the current status and challenges associated with the regulation of pore structures, as well as the influence of pore structures on CO2 capture. Systematic quantitative analysis of structure–property relationships, combined with machine learning approaches, can effectively evaluate the contributions of structural ...
Zhifu Liu, Chuhan Fu, Tao Qi, Hui Zhou, Guangping Hao, Yalou Guo, Guoping Hu   +6 more
wiley   +1 more source

Degradation and Extraction of Organochlorine Pollutants from Environmental Solids under Subcritical Water Conditions

Molecules, 2023
A subcritical water degradation and extraction method was developed to remediate environmental soils contaminated by highly recalcitrant organochlorine pollutants.
Aaryn D. Jones, Andrew T. Morehead, Yu Yang   +2 more
doaj   +1 more source

Protein‐Independent Liquid–Liquid Phase Separation of Adenosine Triphosphate Under Crowded Conditions

Chemistry – A European Journal, EarlyView.
ATP itself is able to undergo liquid–liquid phase separation in the presence of the macromolecular crowding agent PEG and physiological ATP concentrations are sufficient for phase separation in the presence of mM Mg2+ and crowders, mimicking intracellular conditions.
Robert Dec, Wojciech Dzwolak, Roland Winter   +2 more
wiley   +1 more source

Separation and Analysis of Aspirin and Metformin HCl Using Green Subcritical Water Chromatography

Molecules, 2018
Organic solvents are widely used in pharmaceutical and chemical industry for chromatographic separations. In recent years, subcritical water chromatography (SBWC) has shown ability in replacing hazardous organic solvents used in traditional high ...
Ninad Doctor, Yu Yang
doaj   +1 more source

Application of artificial neural network and general machine learning modelling on CO2 adsorption in moisture equilibrated South African high and medium rank coals

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the effect of moisture on CO2 adsorption in South African coals using both experimental and machine learning approaches. Three coal samples (SL, TN, and EM) with varying ranks (RoVmr: 3.49%, 1.26%, and 0.64%, respectively) were collected from different regions of South Africa.
Kasturie Premlall, Lawrence Koech, Douw Faurie, Khanyisile Lepota   +3 more
wiley   +1 more source

Oil mobilisation by subcritical water processing [PDF]

Journal of Petroleum Exploration and Production Technology, 2013
As water approaches the critical point, the dielectric constant lowers enabling solution of heavy oil components. Simultaneously, enhanced water dissociation enhances cracking to lighter fractions. We evaluated this effect for three heavy oils concentrating on the effect of processing on feed viscosity.
Golombok, M., Ineke, E.
openaire   +1 more source

Synthesis and characterization of polymer networks obtained by conventional radical and RAFT copolymerization processes in supercritical carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Conventional and RAFT dispersion copolymerizations of HEMA and EGDMA in supercritical CO2 are compared in terms of swelling index (crosslink density), morphology, particle size distribution, and modular differential scanning calorimetry. Abstract The syntheses of net‐poly((2‐hydroxyethylene methacrylate)‐co‐(ethylene glycol dimethacrylate ...
Patricia Pérez‐Salinas, Karen Mozeltzin Gómez‐Cruz, Alberto Rosas‐Aburto, Maribel Pineda‐Herrera, Humberto Vázquez‐Torres, Graeme Moad, Eduardo Vivaldo‐Lima   +6 more
wiley   +1 more source

Application, Challenges, and Prospects of Non‐Thermal Processing Technologies for Seaweed Protein Extraction—A Review

Food Chemistry International, EarlyView.
This review highlights non‐thermal extraction technologies for seaweed proteins, emphasizing their mechanisms, impacts on protein structure and functionality, and sustainability potential. Key limitations related to species dependence, extract complexity, and scale‐up are discussed to guide future industrial and biorefinery applications.
Rahat Mahmud, Md Fuad Al Hasan, Shuvojit Roy, Tanvir Ahmed   +3 more
wiley   +1 more source

Profiling of Dietary Fiber From Pumpkin (Cucurbita moschata) Seed Hulls Pertaining to Monosaccharide Composition, Structural, Thermal, and Functional Properties

Food Chemistry International, EarlyView.
Dietary fiber (soluble/insoluble) was recovered from pumpkin seed hulls using hydrothermal extraction. Process parameters were optimized, and a comprehensive profiling of recovered fiber fractions was performed. ABSTRACT Insoluble (IDF) and soluble dietary fiber (SDF) were recovered from pumpkin seed hulls (PSHs) using hydrothermal treatment ...
Rishabh Thakur, H. K. Sharma
wiley   +1 more source