JBCS

Illustration of the cross section of an oil pipeline showing the scale formed by sweet corrosion.

A fast and simple analytical method was developed for the determination of fatty acid in fermented milk samples employing direct esterification and gas chromatography.

Different experimental conditions were tested in the elaboration of Syrah wines. Wines produced from riper grapes and macerated over longer periods were richer in volatiles with pleasant aromas and phenolics that are known to provide sensory characteristics appropriate to wine.

A series of eight new 1,2,4-triazoles derived from natural piperine was synthesized. Three compounds showed the best profile of toxic effects against T. cruzi, comparable to that obtained to benznidazole.

A study on chemical composition, antileishmanial and cytotoxic activities of the essential oils from leaves of Guarea macrophylla (Meliaceae) using multivariate statistical analysis was performed in the present work.

Quick, easy, cheap, effective, rugged and safe (QuEChERS) and matrix solid-phase dispersion (MSPD) methods were chosen and compared for the determination of the plant growth regulators in Chinese herbal medicines.

Systematic investigation of a forced degradation sample led to the characterization of a new betahistine impurity.

Sixteen eugenol-derived 1,2,3-triazoles were synthesized and evaluated against rapid growing mycobacteria of difficult clinical management.

Desorption electrospray ionization mass spectrometry imaging (DESI-MSI) was used to assess the spatial distribution of some key flavonoids in peppermint (Mentha x piperita L.) leaves.

Fluoroquinolones were detected in wastewater samples (up to 34 ng mL^-1). Ozonation can remove antimicrobial activity from these samples.

Optical absorption spectra in gas phase and in solvents of different polarities for Au₁₃L₈³⁺.

Coconut oil is used domestically because of its health benefits. Nevertheless, it is a high-cost material and it has been subject to adulterations with lower price oils and fats. This study reports a fast, simple and conclusive methodology to detect low quantities of intentionally adulterated coconut oil with soybean oil.

7-Chloro-2,3-dihydro-5H-thiazolo[3,2-a]pyrimidin-5-one was obtained in a serendipitous way in a chlorination reaction of a thiobarbituric acid derivative.

A series of thieno[2,3-d]pyrimidin-4-amine derivatives were synthesized by using a microwave-enhanced conditions. Amongst these compounds, three exhibited moderate cytotoxic activities against A549, CT26 and HepG2 cell lines.

Determination of ceftiofur, cloxacillin and enrofloxacin in cow milk by optimized quick, easy, cheap, effective, rugged and safe (QuEChERS) methodology.

Extraction protocols for phenolic compounds from the seed and total monomeric anthocyanins from the skin of "Sabará" jabuticaba (SF) were optimized with simplex lattice designs for solvent mixing. Both optimized extraction protocols proved to be fast, simple, and low cost.

The thermal treatment of the oily sludge produces three new residues. This study aims to remediate the liquid residue applying advanced oxidative processes.

Bare silica nanoparticles were successfully synthesized from sugarcane waste ash; the particles are smaller than 100 nm and have a surface area of 63 m² g^-1.

A SiO₂/Al₂O₃/TiO₂ ternary mixed oxides was used to study in preconcentration/separation for Cu²⁺ determination in cachaça samples by square wave anodic stripping voltammetry.

The effect of supporting electrolyte concentration as well as the role of oxidants in solution play an important role in the chemical/electrochemical process at the molecular level (electron-transfer, solvation, diffusion, adsorption species) at boron-doped diamond (BDD) surface.

4D-quantitative structure-activity relationships (QSAR) models obtained from conformational sampling profiles derived by molecular dynamics.

Two new compounds, caryopristimerin and 2α,3α,22β-trihydroxy-21-oxo-29-nor-friedelan-24-oic acid, were isolated from Salacia crassifolia roots. This is the first report of a dimer formed with a quinonemethide-derivative and the sesquiterpene caryophyllene (caryopristimerin) linked by carbon-carbon bonds possibly via homo Diels-Alder reaction.