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... Liver cancers, such as hepatocellular carcinoma (HCC), are a highly prevalent cause of cancer-related deaths. Current treatments to combat liver cancer are limited. (−)-Agelasidine A, a compound isolated from the methanol extract of Agelasnakamurai, a sesquiterpene guanidine derived from sea sponge, has antibacterial activity. We demonstrated its anticancer capabilities by researching the associat ...
... Electrocatalysts with high cost-effectiveness for the oxygen reduction reaction (ORR) are essential for fuel cells (FC) and Zn-Air batteries (ZAB), which need highly active sites and suitable carbon substrates to accelerate the charge transfer kinetics. Herein, a simple and extensible method using ball milling and space-confinement pyrolysis is reported to prepare a series of transition metals and ...
carbon; catalysts; combustion; foams; fuel cells; hydrogen; hydrogen production; mathematical models; methanol; nickel; process design; reaction mechanisms; steam; temperature
Abstract:
... To decrease the temperature difference per unit temperature (ΔTA) of an autothermal methanol steam reforming (ATMSR) microreactor for hydrogen production (HP) and enhance its long-term HP performance for supplying long-term stable hydrogen source for fuel cell vehicles, a three-dimensional (3D)-printed regular-porous structure with multiple microchannels is developed as combustion reaction support ...
... Primary and secondary food processing had been identified as areas vulnerable to fraud. Besides the food processing area, other stages within the food supply chain are also vulnerable to fraud. This study aims to develop a Bayesian network (BN) model to predict food fraud type and point of adulteration i.e., the occurrence of fraudulent activity. The BN model was developed using GeNie Modeler (Bay ...
... BACKGROUND AND PURPOSE: The product recall for detecting unacceptable levels of carcinogenic potential N-nitrosamine impurities has been a severe apprehension in recent years. The regulatory agencies issued guidelines for the pharmaceutical industries to monitor nitrosamine impurities in the drug products. In the present study, we have been developed a robust, simple and sensitive ultra-high-perfo ...
... Naringin is a dietary flavonoid glycoside with multiple bioactivities. It has been involved in numerous metabolism and excretion studies, and its metabolic properties are clear. However, information concerning the excretion profile of its original metabolites are still scarce, and few methods for simultaneous determination of multiple original metabolites of naringin in biological samples have bee ...
Lewis bases; chemical bonding; color; cyanides; detection limit; fluorescence; hexane; human health; methanol; moieties; pH; solvents; titration; wavelengths
Abstract:
... Since the cyanide ion is used in a wide range of industries and is harmful to both human health and the environment, a number of research efforts are dedicated to creating fluorescence sensors for the detection of cyanide (CN⁻). Herein, for the fluorescence detection of CN⁻, a new highly selective and sensitive sensor 2-(3-(benzo[d]thiazol-2-yl)-4-hydroxybenzylidene)-1H-indene-1,3(2H)-dione (BID) ...
carbon dioxide; density functional theory; electrochemistry; electrodes; electron transfer; energy conversion; formates; methane; methanol; oxidation; oxygen; porphyrins
Abstract:
... Oxidation of methane at ambient conditions to useful oxygenates at a bilayer-coated electrode is demonstrated. The composition of the coating, a Mn porphyrin mediator layer on top of a N(OH)₂/NiOOH one, allows a cascade of oxygen transfer events upon applying a potential. It is shown, using (spectro)electrochemical techniques, density functional theory computations and product analytical methods, ...
administrative management; ammonia; economic sustainability; electric power; electricity costs; electrolysis; energy conversion; energy density; fuel production; hydrogen; methane; methanol; oxygen
Abstract:
... In this paper, green hydrogen produced via water electrolysis and its conversion into three alternative fuels, such as methane, methanol, and ammonia, are considered. The four different Power-to-Fuel solutions are investigated and compared from both the technical and economic points of view aiming at providing a comprehensive overview of the Power-to-Fuel feasibility. At first, the global process ...
... A novel composite material consisting of zirconiumbiphenyldicarboxylate metal–organic framework, graphite oxide and ferroferric oxide was fabricated by a facile one-step method and served as a magnetic solid phase extraction sorbent for the simultaneous determination of nitroimidazoles and benzimidazoles in honey. The amount of graphite oxide for the synthesis of composite material and analysis pa ...
Piper nigrum; black pepper; chemometrics; chloroform; condiments; discriminant analysis; food composition; metabolites; metabolomics; methanol; nuclear magnetic resonance spectroscopy; principal component analysis; provenance; quality control; ultrasonic treatment; Brazil; Sri Lanka; Vietnam
Abstract:
... Black pepper (Piper nigrum L.), known as the “king of spices”, is the most consumed spice and it is widely used as a food condiment due to its organoleptic properties. In this study, proton nuclear magnetic resonance (¹H NMR) spectroscopy combined with chemometrics was employed for the first time for the discrimination of black pepper samples based on their geographical origin (Brazil, Vietnam, an ...
Rolande Tsafack Nguemo; Roukayatou Mbouangouere; Gabin Thierry M. Bitchagno; Roland Tchuenguem; Elise Vanessa N. Temgoua; Blanche Laure Ndontsa; James Simo Mpetga; Till Opatz; Augustin Silvere Ngouela; Pierre Tane
... A new ceramide is being reported herein together with six known compounds from the methanol extract of the leaves of Lannea schimperi (Hochst. ex A.Rich.) Engl. The metabolites were obtained through repeated open column chromatography and were characterized by spectroscopic and spectrometric techniques. The radical-scavenging activity of the crude extract and isolated compounds was evaluated using ...
... Two new compounds, an isoquinoline (1) and caloneuramide (2), a ceramide were isolated from the stem bark of Discoglypremna caloneura together with seven known compounds namely aurantiamide acetate (3), acetylaleuritolic acid (4), 3α-hydroxylaleuritolic acid 2α-p-hydroxybenzoate (5), mixture of stigmasterol (6) and β-sitosterol (7), mixture of 7-oxo-stigmasterol (8) and 7-oxo-β-sitosterol (9). The ...
... Phenylsulfenylation of unsaturated acids and alcohols has been achieved by methyl phenyl sulfoxide (PhSOCH₃) and substoichiometric (COCl)₂ in CH₃CN. The corresponding cyclization products, lactones with a phenylthio group from unsaturated acids were obtained in mediate to good yields, whereas the cyclic ethers with a phenylthio group from unsaturated alcohols in relatively low yields. PhSOH was pr ...
carbon; coal; economic performance; energy efficiency; exergy; heat; methanol; natural gas; process design; renewable energy sources; supply balance; China
Abstract:
... With the development of China's economy and industry, demand for natural gas is growing, making coal to synthetic natural gas (CtSNG) a feasible alternative energy supply solution. However, in existing CtSNG projects have been found several issues, e.g., natural gas excess in the non-heating season, low economic performance, low carbon utilization ratio, as well as low energy efficiency. To tackle ...
acetonitrile; azoxystrobin; chemical species; cost effectiveness; derivatization; difenoconazole; diodes; dosage forms; iodides; mancozeb; methanol; reversed-phase high performance liquid chromatography; wavelengths
Abstract:
... A novel, rapid and simple reverse-phase high performance liquid chromatography (RP-HPLC) method for the simultaneous determination of three pesticides – mancozeb, azoxystrobin and difenoconazole by derivatization with ethyl iodide is presented. Analysis was performed on a C18 column (Agilent Eclipse plus, 150 mm × 4.6 mm; 5 μ) with the mobile phase consisting of acetonitrile + methanol (90 + 10 v/ ...
... Both luteolin (LUT) and resveratrol (RES) are natural polyphenols that exert therapeutic effects on liver injuries. Extensive glucuronidation by uridine diphosphate-glucuronosyltransferases 1As (UGT1As) results in poor bioavailability of LUT, which limits its clinical application. As an inhibitor of UGT1A1 and UGT1A9, RES may affect the bioavailability of LUT. The purpose of this study was to deve ...
... The determination of S-allyl-L-cystein (SAC) in black garlic samples by high-performance liquid chromatography coupled with DAD was studied. A simple hand shaken water extraction of SAC from black garlic samples was derivatized with dansyl chloride at room temperature for 15 min. The rapid isocratic elution with a mobile phase of 45% sodium acetate buffer pH 5 and 55% methanol in a Poroshell C-18 ...
... Two-spotted spider mite (Tetranychus urticae Koch) has been considered among the most important phytophagous pest both in field and greenhouse crops around tropical areas of the globe. Although synthetic pesticides have remained as the main method to control mite populations, alternatives strategies as biopesticides based on secondary metabolites derived from plants should be considered. Ascending ...
... We obtain activity coefficients and solubilities of NaCl in water–methanol solutions at 298.15 K and 1 bar from molecular dynamics (MD) simulations with the Joung–Cheatham, SPC/E, and OPLS-AA force fields for NaCl, water, and methanol, respectively. The Lorentz–Berthelot combining rules were adopted for the unlike-pair interactions of Na⁺, Cl–, and the oxygen site in SPC/E water, and geometric com ...
... Small aliphatic alcohols are excellent fuels that have a much higher energy density than liquid H₂. It is advantageous to avoid their complete oxidation to CO₂ and produce chemicals with higher commercial value along with moderate energy extraction. We explored three different phases of nickel phosphide (Ni₁₂P₅, Ni₂P, and Ni₅P₄) for the electro-oxidation of methanol, ethanol, isopropanol, ethylene ...
... Eremanthus erythropappus (DC) McLeisch (Asteraceae), commonly known as “candeia”, is a native species of Minas Gerais state, Brazil, frequently used in medicine as an anti-inflammatory and antimicrobial agent. Eremanthus erythropappus hosts six different gall morphotypes, whose associated inducers manipulate plant cells and tissues and stimulate the neo-synthesis, maintenance, or inhibition of bot ...
... Screening green solvents to improve the solubility of insoluble pesticides in water is a significant development direction for pesticide formulations in the future. Amino acid ionic liquids (AAILs) have strong dissolution properties and are widely used in dissolution. In this work, the conductor-like screening model for real solvents (COSMO-RS) as a solvent screening tool was used to screen AAILs ...
... Even though Salvia is one of the most known genera of the Lamiaceae family, some traditionally used Salvia species are still now less investigated. To that end, the present study aims to evaluate the chemical profile and the potential bioactivities of extracts and related fractions obtained from the endemic sage Salvia haematodes L. by applying a traditional extraction method such as Soxhlet appar ...
anticoagulant activity; anticoagulants; coronary disease; electrospray ionization mass spectrometry; energy; human health; infarction; methanol; quality control; rosmarinic acid; salvianolic acid; solvents; thrombin; traditional medicine
Abstract:
... The cardiovascular and cerebrovascular diseases affect human health globally. Naoxintong capsules (NXTs), a famous Chinese Patent Medicine, has been especially applied to treat cerebral infarction and coronary heart disease in clinical practice. The anticoagulant activity of this prescription plays an important role in this course of treatment.Thrombin and factor Xa (FXa) are two key targets consi ...
... As the offshore energy landscape transitions to renewable energy useful decommissioned or abandoned oil and gas infrastructure can be repurposed in the context of the circular economy. Oil and gas platforms, for example, offer opportunity for hydrogen (H₂) production by desalination and electrolysis of sea water using offshore wind power. However, as H₂ storage and transport may prove challenging ...
Amjad Ali; Mohammad Nisar; Syed Wadood Ali Shah; Atif Ali Khan Khalil; Muhammad Zahoor; Nausheen Nazir; Sayed Afzal Shah; Fahd A. Nasr; Omar M. Noman; Ramzi A. Mothana; Sajjad Ahmad; Hafiz Muhammad Umer Farooqi
... Ilex dipyrena Wall (Aquifoliaceae), is a traditional medicinal plant abundantly found in India and Pakistan. In the current research work, initially, the anatomical characteristics were recorded through microscopic examination of selected plant parts, such as leaf, petiole, and midrib. Then, the quantitative phytochemical screening was performed using standard tests reported in literature. The who ...
... Haemonchosis is a gastrointestinal parasitic disease of economic importance in ruminants especially sheep and goats. In view of the rising costs of conventional veterinary anthelmintics and the development of resistance by Haemonchus contortus, there is a need to develop alternative ethnoveterinary therapies for the treatment and management of Haemonchosis. This study investigated the anthelmintic ...
... Hepatitis C virus is still a global challenge affecting millions of carriers worldwide with the more devastating situation in developing countries. Present-day clinical manifestations are insufficient to tackle the increasing disease burden unaffordable cost, viral resistance and adverse effects of treatment. In this research, indigenous medicinal plants from Pakistan tested in bioassay guided man ...
Alejandro Martínez-Ceja; Antonio Romero-Estrada; María Crystal Columba-Palomares; Israel Hurtado-Díaz; Laura Alvarez; Rubicela Teta-Talixtacta; Mariana Sánchez-Ramos; Francisco Cruz-Sosa; Antonio Bernabé-Antonio
... Randia aculeata (Rubiaceae) is a medicinal plant distributed in the state of Jalisco, Mexico. In folk medicine it is used to counteract the effects produced by the bite of snakes and other poisonous insects. However, there are no reports of new alternatives to use the plant in a sustainable way. The main objective of this study was to establish a cell culture of R. aculeata, evaluate its anti-infl ...
... :Lipopolysaccharides (LPS) is an agent that is used to initiate neuroinflammation in animal experimental model. Thus, leading to neurotoxicity and behavioral deficit. These effects are thought to be caused by significant increase in the level of pro-inflammatory mediators in the Central nervous system. However, not much is known about the anti-neuroinflammatory properties of Waltheria americana le ...
... Knowing the antibiotic resistance profile of pathogenic bacteria is essential to finding an appropriate remedy for these issues by sourcing antibacterial agents from plants. The present study exposes the bactericidal potential of different leaf extracts of Blepharis maderaspatensis and Ziziphus oenoplia against multi drug resistant bacterial strains enumerated from pus specimens at a secondary car ...
... The antifungal and biological control effects of phytochemicals from the leaves and seeds of Acacia concinna and Lantana camara were analyzed against plant phytofungi and the mealy bug Maconellicoccus hirsutus. The methanol and aqueous extract derived from A. concinna and L. camara inhibited the growth of phytofungi. The methanol extracts showed the broad spectrum antimicrobial properties as they ...
... The antimicrobial properties of Coriandrum sativum, Lactuca sativa, and Mentha spicata were examined using Kirby-Bauer disk diffusion technique. Among the solvents used for extraction, methanol, acetone, and n-hexane extracts were effective against antibiotic resistant microbes. The highest inhibition zone (17.0 ± 0.5 mm) was noted for the methanol extract of C. sativum against Bacillus cereus and ...
... Cosmos sulphureus is an adventitious species for Europe and Ukraine in particular. It originates from Central and South America, where it grows in tropical and subtropical climates. The climatic conditions of Kyiv are characterized as temperate, with an absolute temperature minimum of –32.2 °C, an absolute maximum of +39.9 °C, and average annual rainfall of 649 mm. Plants were analyzed in the flow ...
... The genus Rhododendron (family: Ericaceae), distributed mostly in the higher altitude of the Indian Himalayan Region (IHR), has great ecological significance and economic importance. In the present study, three endemic species of Rhododendron viz., R. dalhousiae, R. ciliatum and R. maddenii were investigated for antioxidant, antimicrobial activity and phenolic compounds. Five different solvents vi ...
... Stevia rebaudiana, a natural sweetener and a non-caloric sugar substitute, is known to exhibit several medicinal properties including anti-diabetic effects. However, its mechanism of action, as an antidiabetic agent, is not completely understood. In this study, aqueous, methanol, and ethanol extracts of leaves were used. Among all the extracts, the methanolic extract exhibited the highest TPC (41. ...
Samyra Imad Boeno; Ivo José Curcino Vieira; Raimundo Braz-Filho; Michel de Souza Passos; Milena Gonçalves Curcino Vieira; Maria Fernanda Alves do Nascimento; Douglas Costa Gontijo; Alaíde Braga de Oliveira
Plasmodium falciparum; Quassia; Simaba; antimalarials; antiplasmodial properties; cytotoxicity; malaria; metabolites; methanol; traditional medicine; triterpenoids; Brazil
Abstract:
... Different species of the Simaroubaceae family are used in traditional medicine to treat malaria. Among these is Homalolepis suffruticosa (syn. Simaba suffruticosa and Quassia suffruticosa), which is native to Central Brazil and popularly known as calunga. However, there is a lack of investigation concerning its antimalarial effects.To investigate the antiplasmodial and cytotoxic effects of the iso ...
carbon; carbon dioxide; economic sustainability; electricity; energy efficiency; environmental assessment; exergy; furnaces; heat; hydrogen; methanol; ovens; synthesis gas
Abstract:
... This study aims to develop an economically viable novel process with high thermodynamic efficiency for the co-generation of methanol and electricity from coke oven gas (COG) and blast furnace gas (BFG). For this purpose, two processes are proposed to utilize COG and BFG. In process A, syngas is obtained from COG reforming, and BFG, after providing the required heat for the reformer, is injected in ...
... Piezoelectric catalysis based on the polarization of piezoelectric materials is a promising technology for environmental pollutant treatment. Developing effective piezoelectric catalysts and clarifying the reaction mechanism are crucial to the application of piezoelectric catalysis. Herein, a unique strategy of photochemical self-etching of Bi₂₅FeO₄₀ was used to prepare a piezoelectric catalyst of ...
Balasubramanian Mythili Gnanamangai; Govindan Ramachandran; Muthuchamy Maruthupandy; Venkatachalam Mohana Priya; Govindaraj Karthikeyan; Ramzi A. Mothana; Omar M. Noman; Fahd A. Nasr
... The plant papaya as Carica papaya L. grows wild and is an economically important seasonal fruit which grows in tropical regions as well as sub-tropical regions. These papaya fruits have some carbohydrates and water, that are low in calories but rich in minerals such as vitamin A, vitamin B and vitamin C. It also constitutes carbohydrates, proteins, proteolytic enzymes (papain and quimiopapain) and ...
Carlos E. B. Toazza; Fernando C. Leal; Caroline Marques; Grazielle Oliveira; Fabiane O. Farias; André L. D. Belan; Natalicio F. Leite; Marcos R. Mafra; Luciana Igarashi‐Mafra; Maria Lucia Masson
... Lemongrasses are known and used worldwide due to several benefits conferred to them regarding the high content of essential oils and other phenolic compounds, which are essential and nonessential compounds that occur in nature, are part of the food chain and present several benefits on human health. The obtaining of phenolic compounds from natural matrices requires the development of effective pro ...
... Pavetta crassicaulis,. belongs to family Rubiaceae. Its leaves are used to treat piles and bone fracture in traditional medicinal system. Present investigation was carried out to find out chemical components in the leaves of this plant following GC-MS technique. Ten chemical compounds were identified in methanol extract of the leaves, which included 4H-Pyran-4-one, 2, 3-dihydro-3, 5-dihydroxy-6-me ...
... This short communication investigated biodiesel production from Euglena Sanguineamicroalgaeand custard appleusing nano CaO as a heterogeneous catalyst. Different solvents were used to extract the oil at a fixed speed, time, and temperature for the samples to estimate the optimized oil yield%. The catalyst was synthesized by sol gel method in nano-scale. It was further characterized by FTIR spectro ...
... The present study was conducted to determine the feasibility of biodiesel production from candlenut oil using supercritical methanol (scMeOH) as a non-catalytic transesterification process. The influence of the scMeOH transesterification process was determined with varying pressure (85–145 bar), temperature (260–300 °C), methanol to oil (M : O) ratio (15 : 1–35 : 1), and reaction time (15–25 min). ...
... The conventional chemical route for biodiesel production is transesterification, which is carried out on industry via homogeneous alkaline catalysis. Although several alternative technologies have been studied to make transesterification more competitive, none of them, so far, has been interesting at commercial level. One of the drawbacks of transesterification is the generation of glycerol, which ...
... To control agronomic N losses and reduce environmental pollution, biological nitrification inhibition (BNI) is a promising strategy. BNI is an ecological phenomenon by which certain plants release bioactive compounds that can suppress nitrifying soil microbes. Herein, we report on two hydrophobic BNI compounds released from maize root exudation (1 and 2), together with two BNI compounds inside mai ...
benzoquinones; furfuryl alcohol; manganese dioxide; methanol; ozonation; pollutants; reaction mechanisms; research; singlet oxygen; sodium azide; water
Abstract:
... Reactive oxygen species (ROS) such as hydroxyl radicals (•OH), superoxide radicals (O₂•⁻), and singlet oxygen (¹O₂) have often been suggested to play a role in ozone-resistant pollutant abatement during catalytic ozonation. However, there are significant controversies regarding their relative importance in literature. Currently, the role of ROS in pollutant abatement is commonly evaluated by the q ...
carbon dioxide; carbonates; green chemistry; methanol; nitriles; thermodynamics
Abstract:
... The direct synthesis of dimethyl carbonate (DMC) from CO₂ and methanol has recently attracted much attention because such a process would allow the application of green chemistry principles. However, its major drawbacks lie in the high stability of CO₂ and in the thermodynamic equilibrium of the reaction. The present review aims to discuss strategies that have been explored by researchers recently ...
Diana Laura Medina-Melchor; Diego Helman Zapata-Sarmiento; Elvia Becerra-Martínez; Mario Rodríguez-Monroy; L. Gerardo Zepeda Vallejo; Gabriela Sepúlveda-Jiménez
... The Allium cepa L. (onion) crop is affected by leaf blight disease caused by Stemphylium vesicarium; the shifts that S. vesicarium infection causes in the primary metabolism of onion plants are not known. In this study, the profiling of primary metabolites obtained by nuclear magnetic resonance (¹H NMR) spectroscopy of organs from onion plants uninfected (control) and infected with S. vesicarium w ...
... BACKGROUND: 10‐Hydroxy‐cis‐12‐octadecenoic acid (10‐HOE, 10‐OH C18:1), an emerging functional fatty acid, has anti‐fungal and anti‐inflammatory effects. 10‐HOE is synthesized by bacterial 10‐linoleic acid hydratase (10‐LHT) with linoleic acid as the substate. However, the characterization of 10‐LHT and its targeted synthesis of 10‐HOE have been rarely reported. In this study, the recombinant 10‐LH ...
... The aerial parts of Haplophyllum tuberculatum (H. tuberculatum) have traditionally been used by local communities to treat fever, gastrointestinal disorders, worms, malaria and fractures, however, the responsible ingredients of the selected medicinal plant have not been identified. In the present study, antibacterial and antioxidant ingredients were isolated and characterized from the plant parts ...
... Lignins and lignans are important for plant resistance to pathogens. Dirigent (DIR) proteins control the regio- and stereo-selectivity of coniferyl alcohol in lignan and lignin biosynthesis. DIR genes have been implicated in defense-related responses in several plant species, but their role in poplar immunity is unclear. We cloned PtDIR11 from Populus trichocarpa; we found that overexpression of P ...
Strombus; aesthetics; cosmetics; drugs; economic valuation; electrospray ionization mass spectrometry; fumigation; gas chromatography-mass spectrometry; high performance liquid chromatography; hydroxybenzaldehyde; medicine; methanol; nuclear magnetic resonance spectroscopy; odors; perfumes; smoke; therapeutics; Sudan
Abstract:
... Strombidae is one of the major molluscan families in Sudan and due to their opercula, has tremendous economic value. In traditional Sudanese homemade perfumes and body care cosmetics, Strombidae family operculum is one of the main ingredients. Their fumigation generates a charming odor preferred by Sudanese people, used for body smoke baths by married women. Moreover, these fumes are believed to t ...
... In the context of algal wastewater bioremediation, this study has identified a novel consortium formed by the bacterium Methylobacterium oryzae and the microalga Chlamydomonas reinhardtii that greatly increase biomass generation (1.22 g L⁻¹·d⁻¹), inorganic nitrogen removal (>99%), and hydrogen production (33 mL·L⁻¹) when incubated in media containing ethanol and methanol. The key metabolic aspect ...
... Saraca asoca (Roxb.) Willd. is a plant belonging to the Detarioideae subfamily of the legume family. It is an important and most ancient tree species of Peninsular India and Sri Lanka. The Ashoka is an ornamental and medicinal plant and this species is classified as ‘vulnerable’ under International Union for Conservation of Nature (IUCN) red list The present study was aimed for a comparative study ...
... Polyphenols with antioxidant compounds represent an important group of bioactive substances in apple production. The objectives of this study were firstly to measure four parameters of antioxidant capacity (AC) and polyphenol content (AC-FRAP (Ferric Reducing Ability of Plasma), AC-DPPH (2,2-diphenyl-1-picrylhydrol), AC-TEAC (Trolox Equivalent Antioxidant Capacity) and total polyphenol content (TP ...
... Organic co-solvents, which are universally employed in adsorption studies of hydrophobic organic chemicals (HOCs), can inhibit HOC adsorption by competing for active sites on the adsorbent. The adsorbent structure can influence co-solvent interference of HOC adsorption; however, this effect remains unclear, leading to an incomplete understanding of the adsorption mechanism.In this study, dioctyl p ...
... The biodiesel process generates crude glycerin as a coproduct, which is primarily glycerol, but also includes varying amounts of other materials that may impact the value of crude glycerin as a feed for livestock. The response of dairy cows to the complete substitution of finely-ground mature corn with crude glycerin in diets containing a high content of non-forage fiber sources was evaluated. The ...
Yasemin Celik Altunoglu; Tevfik Hasan Can; Enis Fuat Tufekci; Bahattin Deniz Altunoglu; Mehmet Cengiz Baloglu; Eulogio J. Llorent-Martínez; Gokhan Zengin
DNA; Daphne; amylases; antineoplastic activity; chemical composition; chemical constituents of plants; flavonoids; leaves; methanol; traditional medicine
Abstract:
... The genus Daphne presents great interest as a valuable source of natural agents in traditional medicine of various countries, including Turkey. In the current work, we investigated the phytochemical composition and biological properties of Daphne pontica L. extracts. Methanol extracts of roots, stems and leaves were prepared. The chemical characterization was performed by HPLC-ESI-MSⁿ, observing t ...
... Methanol is a promising green feedstock for producing fuels and chemicals because it is inexpensive, clean, environmentally friendly, and easily prepared. Thus, many studies have been devoted to engineering non-native methylotrophic platform microorganisms to utilize methanol. This study adopted a series of strategies to develop a synthetic methylotrophic Bacillus subtilis that can use methanol as ...
... A systematic investigation of two sets of defect free and defective ZSM-5 crystals with controlled thickness (T) between 30 and 400 nm and of their performances in methanol conversion was reported for the first time in the present work. The defect free ZSM-5 crystals with a thickness of 35 nm are by far the smallest ever reported and displayed superior activity, stability and selectivity to slower ...
carbon dioxide; catalysts; electrochemistry; hydrogenation; methanol; photochemistry; temperature
Abstract:
... This review explains the various methods of conversion of Carbon dioxide (CO₂) to methanol by using homogenous, heterogeneous catalysts through hydrogenation, photochemical, electrochemical, and photo-electrochemical techniques. Since, CO₂ is the major contributor to global warming, its utilization for the production of fuels and chemicals is one of the best ways to save our environment in a susta ...
... Pd–P@Pt–Ni core–shell nanoparticles, which consisted of a Pd–P alloy as a core and Pt–Ni thin layer as a shell, were explored as electrocatalysts for methanol oxidation reaction. The crystallographic information and the electronic properties were fully investigated by X-ray diffraction and X-ray photoelectron spectroscopy. In the methanol electrooxidation reaction, the particles showed high cataly ...
... Use of green alternative sources for energy like biofuels is one of the most important requirements of sustainable development. This research aims to design and prepare a new magnetically recoverable catalyst based on agro-wastes. For this purpose, cotton waste was selected and its application in the preparation of magnetic catalysts (Cotton/Fe₃O₄@SiO₂@ H₃PW₁₂O₄₀) used for the production of biodie ...
... A detailed understanding of the interactions among the active components in gallium promoted Cu/ZnO catalysts, depending on the speciation of the gallium, are reported using in situ/operando spectroscopic studies, and their effect in the CO₂ hydrogenation to methanol unraveled. In this contribution, the promoting effect of Ga³⁺-doped in the wurtzite ZnO lattice of a Cu/ZnO/Ga₂O₃ catalyst is compar ...
... The oxygen reduction reaction (ORR) that for instance takes place at the cathode of fuel cells is one of the most examined model reactions of energy conversion. The ORR presents sluggish reaction kinetics, thus limiting the overall efficiency of these cells. Pt-based catalysts are still the widest choice though they exhibit important drawbacks such as long-term instability and intolerance to metha ...
... The purpose of this research work is to investigate and establish the anticancer (cytotoxic) properties of African peach (Nauclea latifolia) stem bark extract and fractions on breast cancer cell lines (MCF-7), skeletal muscle cancer (RD) cell lines and to determine the selectivity index (SI) on normal African green monkey kidney cell lines (Vero). Crude extract and fractions obtained from acid-bas ...
Seham Salah Eldin Elhawary; Amira kamal Eldin Elmotyam; Doaa kamel Alsayed; Eman Maher Zahran; Merivat Ahmed Fouad; Amany Ameen Sleem; Hanan Elimam; Mohamed H. Rashed; Alaa M. Hayallah; Anber F. Mohammed; Usama Ramadan Abdelmohsen
DNA; Syzygium cumini; active sites; cell lines; cytotoxicity; diabetes; glycemic effect; ligands; methanol; quercitrin; research
Abstract:
... LC-HR-MS-coupled metabolic profiling of the methanol extracts from different parts of Syzygium cumini (L.), which was extensively identified via DNA fingerprinting, led to dereplication of 24 compounds. Cytotoxic investigation highlighted both extracts as the most potent, against both MCF-7 and MDA-231 Cell lines, with IC₅₀ value of 5.86 ± 0.63 µg/ml and against HCT −116 cell line, with IC₅₀ value ...
... One new 8,4’-oxyneolignan (1) and one new 7,8-dihydrobenzofuranone (2), together with twenty-one known compounds (3‒23) were isolated from the methanol extract of Rhizophora apiculata leaves. The structures of new compounds, as well as their absolute configuration, were determined by a combination of spectroscopic methods and quantum chemical calculations of NMR and ECD data. All isolated compound ...
... This study evaluated the cytotoxic activity of Tamoxifen (TMX), an anti-estrogen drug, with microalgal crude extracts (MCEs) in single and synergistic application (TMX-MCEs) on MCF-7 and 4T1 breast cancer cells, and non-cancerous Vero cells. The MCEs of Nannochloropsis oculata, Tetraselmis suecica and Chlorella sp. from five different solvents (methanol, MET; ethanol, ETH; water, W; chloroform, CH ...
... Monsonia angustifolia is traditionally used to treat anthrax, heartburn, diarrhea, eye infections and hemorrhoids. Dodonaea angustifolia plants are frequently used as a treatment for dental pain, microbial infections and jungle fever. The two plant species were selected due to the presence of secondary metabolites such as, coumarins, flavonoids, saponins and polyphenolics in the crude extracts whi ...
biogas; carbon dioxide; formic acid; methanol; power plants; raw materials; synthesis gas; value added
Abstract:
... The simulation of chemical processes is a useful tool that provides valuable information and data for process analysis. The obtained data from simulations could be used later in optimization, economic, environmental, energetic, exergetic and different kind of analysis. In this work, it is presented the data that serves as basis for the simulation of different chemical process that use CO₂ as a raw ...
... Oxidized cholesteryl ester (OxCE) is produced by the oxidation of cholesteryl ester (CE) in the cores of lipoproteins. OxCE production and oxidative stress have been largely associated with breast cancer. Herein, we developed a novel reverse-phase liquid chromatography coupling quadrupole time-of-flight mass spectrometry (RPLC‒Q-TOF‒MS) method based on the iterative acquisition mode and used the M ...
... The extraction experiment of PAAs is carried out by using different solvents to seek out the best extraction one among methylene chloride, n-hexane, ethyl acetate and methanol. Migration test of PAAs from different polymer flexible packaging composite materials under both conditions of 40 ℃/10d and 70 ℃/2 h in neutral and oil simulants are conducted. An effective HPLC method in ESI+ mode is propos ...
... In this study, two analytical procedures were developed and validated using dual-channel capillary electrophoresis-coupled contactless conductivity detection (CE-C4D) followed by solid-phase extraction (SPE) for simultaneous determination of glyphosate (GLYP), glufosinate (GLUF), and their two major metabolites, aminomethylphosphonic acid (AMPA) and 3-(methylphosphinico) propionic acid (MPPA), res ...
aqueous solutions; chemical species; ethanol; food composition; formic acid; isotopes; methanol; oases; solid phase extraction; standard deviation; tandem mass spectrometry
Abstract:
... A method was developed and validated for the determination of two plant-derived doping agents, higenamine (HG) and tretoquinol (TQ), in 26 kinds of spices. This was undertaken using ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) and isotope internal standards. The samples were extracted with ethanol containing 0.5% formic acid and purified using an Oasis MCX soli ...
... The contents of methanol and fusel oils in various types of wines were determined using headspace-gas chromatography (HS-GC). The HS-GC analysis method showed good linearity, high precision and accuracy, and low LOQ and LOD values. The methanol content in 289 types of wines ranged from not detected (ND) to 333.84 mg/kg, and was higher in Korean grape wines than in imported grape wines. Among fusel ...
... Concentration data of veterinary drugs in microalgae biomass collected from photobioreactors fed with piggery wastewaters are presented for the first time in this work. To this aim, a QuEChERS methodology and an ultrasound-assisted solid-liquid extraction have been assessed as sample preparation procedures with the purpose of determining 20 veterinary drugs, mainly antibiotics of different physico ...
acetonitrile; adsorbents; detection limit; ethyl acetate; experimental design; macrolides; mass spectrometry; methanol; nitrogen; nitroimidazoles; poultry; solvents; temperature
Abstract:
... This study established a detection method based on accelerated solvent extraction-liquid chromatography-mass spectrometry for determining residues of 3 chloramphenicols, 8 macrolides, 18 sulfonamides, 4 nitroimidazoles, 15 insecticides, and 22 fungicides in poultry feathers. The extraction solvent, methanol, was used for a static extraction time of 5 min, and repeated three times. Fifty milligrams ...
... This study was aimed at simplifying the conventional aflatoxin HPLC-FLD analysis procedure for determining aflatoxins B1, B2, G1, and G2 by utilizing the advantage of immunoaffinity column (IAC) and normal-phase chromatography. Normally, a derivatization procedure is needed to enhance the fluorescence signal of aflatoxin quenched by the reversed-phase solvent used as the HPLC mobile phase. However ...
absorption; distillation; energy recovery; exergy; gasification; greenhouse gases; methanol; power generation; process design; sewage sludge; China
Abstract:
... Sewage sludge is a common waste from wastewater treatment plants in Hong Kong and conventional treatment ways like the landfilling method has been gradually abandoned considering the environmental impacts and costly land. Searching for integrating processes to well treat the sludge simultaneously achieve the energy recovery can be a good alternative way. Therefore, process design and simulation of ...
analytical chemistry; antibiotic resistance; feces; ingestion; liquid chromatography; macrolides; metabolites; methanol; migratory behavior; norfloxacin; solid phase extraction; standard deviation; tandem mass spectrometry; ultrasonic treatment; water birds; water pollution
Abstract:
... The widespread occurrence of antibiotics in the environment may exert a negative impact on wild organisms. In addition, they can become environmental reservoirs, through the ingestion of food or contaminated water, and vectors for antibiotic-resistant bacteria. This fact is even more important in migratory birds that can promote their dissemination across continents. In this work, a multiresidue a ...
... The following qualitative screening and quantitative determination of 201 pesticides present a detailed optimization making use of design of experiments (DoE). The post-targeted screening took advantage of an upgradeable database to extend the survey further to perform a standard-free novel quantitation by liquid chromatography high resolution mass spectrometry (LC-HRMS). The fine tuning of instru ...
... Violacein, a blue-violet compound with a wide range of beneficial bioactivities, is an attractive product for microbial production. Currently, violacein production has been demonstrated in several sugar heterotrophs through metabolic engineering; however, the cost of production remains an obstacle for business ventures. To address this issue, the development of host strains that can utilize inexpe ...
... Traditional in vitro screening assays for identifying probiotics often fail to provide a metabolomic overview of candidate strains. Thus, this work aimed to develop a non-target metabolomics-based method for screening bifidobacteria from a broad perspective. First, methods for extracting intracellular metabolites of bifidobacteria were compared. Methanol extraction with bead mill and sonication wa ...
Ahmad Faiz Bin Che Fisol; Noor Baity Saidi; Jameel R. Al-Obaidi; Dhilia Udie Lamasudin; Safiah Atan; Nurhanani Razali; Roslinda Sajari; Norasfaliza Rahmad; Siti Nahdatul Isnaini Said Hussin; Nurul Hafiza MR
... Rigidoporus microporus is the fungus accountable for the white root rot disease that is detrimental to the rubber tree, Hevea brasiliensis. The pathogenicity mechanism of R. microporus and the identity of the fungal proteins and metabolites involved during the infection process remain unclear. In this study, the protein and metabolite profiles of two R. microporus isolates, Segamat (SEG) and Ayer ...
... Tree stems have been identified as sources of volatile organic compounds (VOCs) that play important roles in tree defence and atmospheric chemistry. Yet, we lack understanding on the magnitude and environmental drivers of stem VOC emissions in various forest ecosystems. Due to the increasing importance of extreme drought, we studied drought effects on the VOC emissions from mature Scots pine (Pinu ...
... Sulfacetamide sodium as an antibacterial agent is co-formulated with prednisolone acetate in Phenamide-P® ophthalmic suspension to cure the ophthalmic infections correlated with inflammatory disorders. For the first time, two innovative, sensitive, specific, and robust chromatographic platforms were developed and their conditions were optimized for rapid analysis of the aforementioned drugs either ...
... The CO₂ photoreduction is a promising way to convert one of the most abundant greenhouse gases to valuable chemicals. The photoreduction in the liquid phase is limited by the low solubility of CO₂ in water, but this point is overcome here by using an innovative photoreactor, which allows one to work up to pressures of 20 bar, improving the overall productivity. The photoreduction was performed in ...
... The optimization of extraction conditions to recover antioxidant rich extract from plant of Ficaria Kochii with an ultrasound-assisted system was achieved by response surface methodology. The rotatable central composite design (RCCD) was used to optimize extraction parameters in terms of total phenolic and total flavonoid content and antioxidant activity. The optimum conditions for extraction by m ...
... CO₂ hydrogenation to methanol can relieve energy shortage and weaken CO₂ emission, and Cu-ZnO catalysts show excellent activity, in which the surface basicity improves conversion and selectivity, but the influence mechanism is often ignored. In this work, Cu-ZnO/Al₂O₃, Cu-ZnO/Al₂O₃-MgO and Cu-ZnO/MgO were prepared to study the effect of surface basicity on CO₂ hydrogenation to methanol. It was fou ...
... Desorption electrospray ionization/post‐photoionization (DESI/PI) is a newly developed ionization method by the combination of DESI and post‐photoionization for the simultaneous imaging of polar and nonpolar compounds in biological tissues. Dopants are of great importance in DESI/PI for the enhancement of signal intensities through ion–molecule reactions. In this work, to evaluate the performance ...
Bronsted acids; Lewis acids; acidity; alkaline earth metals; aromatic compounds; byproducts; carbon; catalysts; dehydrogenation; gasoline; glycerol; green chemistry; liquids; methanol
Abstract:
... The present study reports the development of an alkali earth metal (Ba)-modified Zn/ZSM-5 catalyst for efficient carbon conversion of bio-derived crude glycerol toward aromatics production in a methanol (GMTA) co-process. The metal functionality caused considerable alteration in acidity to improve the dehydrogenation properties of the catalyst to produce more aromatics and to simultaneously contro ...
... With well-endowed nanopores, graphyne (GY) membranes have attracted considerable interest in alcohol purifications. However, the challenge lies in the rational design of GYs for efficient separation of (C₁–C₂) alcohol solutions. Herein, GYs are firstly developed for methanol recovery and ethanol dehydration by molecular simulations. Two design strategies including surface charge modification and f ...
... Hydrogen-free cathodic exfoliation was utilized to obtain PdTe₂ nanosheets (PTNS) with size 300 nm × 100 nm. Abundant highly exposed active sites and a strong electronic effect between Pd and Te endow PTNS with simultaneous superior methanol oxidation performance in alkaline media, which delivers a low onset potential, high mass and specific activity, and efficient CO elimination ability. ...
absorption; administrative management; adsorption; air; animals; carbon; carbon dioxide; electricity; exergy; farms; heat; methanol; photosynthesis; solar energy
Abstract:
... Although artificial photosynthesis can produce hydrocarbon fuels and reduce carbon emissions, current implementations cannot optimally utilize the solar spectrum and thus are inefficient. This research proposes a new hybrid energy system, which begins by applying the photovoltaic/thermal panel to simultaneously generate higher-grade electricity and lower-grade heat. Then, the electricity is suppli ...
... In this study, a hybrid nanocomposite composed of superparamagnetic multi-walled nanotubes and four-arm polyethylene glycol amine (mMWCNTs@4-arm-PEG-NH₂) was synthesized and employed as a matrix for covalent immobilization Rhizopus oryzae lipase. The performance of immobilized lipase (ROL-mMWCNTs@4-arm-PEG-NH₂) was greatly improved, with maximum activity recovery of 3073% and a 30.73-fold superior ...
... Due to the increasingly strict legislation about the disposal of sewage sludge, it is necessary to find sustainable solutions to manage this waste at low-cost conditions. In addition, priority contaminants are now attracting much attention since they are usually detected in WWTP effluents. In this work, five sludge have been used as precursors for the synthesis of activated carbons subsequently te ...