Vanillin (V), acetovanillone (VO) and vanillic acid (VA) were fractionated after alkaline depolymerization of lignin. The feed solution had an initial pH of 13.7 and the work was performed always under alkaline pH, reducing chemical waste. The organic charge of the solution was reduced from the ...
Encapsulation of vanillin through β-cyclodexterin inclusion complex coacervates (β-CD-IC) was developed to achieve higher thermal stability and controlled release of vanillin. The effect of protein to polysaccharide (Pr:Ps) ratio and core (Vanillin/β-CD-IC) to wall (coacervate) ratio on the v...
Electrospun molybdenum disulfide (MoS2) nanoparticles composite carbon nanofibers (MoS2-CNF) were first applied for determining the amount of Vanillin. The synthesized MoS2-CNF was characterized by scanning electron microscopy (SEM), Raman, X-Ray diffraction (XRD) and Electrochemical impedance t...
Lignin is the renewable source of aromatics in nature, and the conversion of lignin into vanillin is very attractive. However, the vanillin yield is closely related to the resource of lignin and its isolation process, and relatively low yield of vanillin is always obtained from lignin. In order ...
Vanillin is a naturally occurring phenolic aldehyde that is world-wide known for its flavouring properties. This work reports an extensive experimental and computational study of its thermodynamic properties. The vapour pressures of crystalline and liquid phases of vanillin were measured in the ...
The effect of salting-out (i.e., a decrease in solubility by the addition of salts) on the vanillin partition coefficient was investigated when vanillin was extracted using supercritical CO2 from a vanillin aqueous solution containing salts (0–0.9 mol/kg) at 40 °C and 20 MPa. The addition of s...
Vanillin is widely used in food and cosmetics, among other substances, for its sweet smell. However, the neuropsychological effects of vanillin inhalation have not been elucidated. In this study, we investigated the effect of vanillin inhalation on mouse behavior. First, we investigated whether ...
Pre-treatment of biomass prior to fermentation can effectively boost gaseous biofuel production. However, inhibitors including furfural and vanillin can be generated from the hydrolysis of biomass such as lignocellulosic biomass and algae. In this study, the inhibitory effects of furfural and va...
The preparation of vanillin-based epoxy thermosets has attracted great attention in recent years, however, most of them could not be reprocessed once after curing procedures. In the present work, a vanillin-based epoxy vitrimer (Van-Ep/IPDA) with dynamic imine covalent bonds was prepared by curi...
Nucleation and metastability in crystallization of organic substances in organic solvents have been investigated. The focus was set on the effect of the thermal history of the solution on the metastability. Vanillin and ethyl vanillin were used as model substances. The metastable zone was determ...
Vanillin is one of the most important flavours produced in the world. Due to its increasing value and its demand, mainly in the food industry, several ways to obtain it at lower prices are under study. One of the routes is based on the oxidation of vanillyl alcohol by Eugenol oxidase (EUGO), whi...
A simple, precise, accurate, and validated liquid chromatography-quadrupole linear ion trap mass spectrometry method was developed for the determination of vanillin, ethyl vanillin, and coumarin in infant formula samples. Following ultrasonic extraction with methanol/water (1:1, vol/vol), and cl...
Food safety is of extreme importance to human health. Vanillin and ethyl vanillin are the widely used food additives and spices in foods, beverages, cosmetics and drugs. The objective of the present work was to evaluate the impact of vanillin and ethyl vanillin on the activities of CYP2C9, CYP2E...
Errors are discovered regarding the published equation coefficients of Wu and co-workers {J. Chem. Thermodynamics 105 (2017) 345–351} for mathematically describing the solubility behaviour of ethyl vanillin in neat solvents using the λh equation. The calculated values using the published equat...
A simple protocol for the extraction of vanillin and ethyl vanillin in cocoa powders, followed by analyte quantification using HPLC, has been proposed in this work. After optimizing both, extraction and separation conditions, both analytes were determined in less than 4 min, with relative standa...
The solubility of ethyl vanillin (EVA) in eight pure solvents were determined in different temperature ranges from (273.15 to 318.15) K by a static analytical method. In the temperature ranges investigated, it was found that the solubility of EVA in all the selected solvents increased with the r...
In this work we have investigated in details the process of degradation of the 4-amino-6-chlorobenzene-1,3-disulfonamide (ABSA), stable hydrolysis product of frequently used pharmaceutical hydrochlorothiazide (HCTZ), as one of the most ubiquitous contaminants in the sewage water. The study encom...
The synthesis of a block copolymer containing poly(aryl ether sulfone) (PAES) and poly(aryl ether ketone) (PEAK) is an interesting route combining in a single material thermal resistance (glass transition temperature, Tg > 200°C) and high environmental resistance. The synthesis involves the fun...
Sulfonated multiblock poly(arylene ether sulfone) copolymers (SMPESs) containing phenolphthalein anilide (PPA) as a cardo group were prepared from the precursors of hydrophilic and hydrophobic block oligomers. The hydrophobic oligomer was prepared by 4,4′-dihydroxydiphenylsulfone and 4,4′-dich...
In this study, composite reverse osmosis (RO) membranes made from sulfonated poly(arylene ether sulfone) containing amino groups (aPES) and aminated template free zeolite nanoparticle (aTMA) were prepared with the aim of enhancing chlorination resistance and improving membrane performance. The p...
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