JBCS

AsB, DMA, As^III, MMA and As^V in rice and fish were separated in 15 min by high-performance liquid chromatography with inductively coupled plasma-mass spectrometer (HPLC-ICP-MS) using an Agilent Bio SAX column and salt gradient elution.

Grape seed proanthocyanidin extract regulates the intracellular reactive oxidative stress and tyrosinase activity originated from UV exposure.

Improved method for the synthesis of benzodiazepin-2,5-diones and 7-iodobenzodiazepin-2,5-diones mediated by glacial acetic acid.

Direct addition of natural sources of antioxidants in oil-in-water emulsions, followed by the study of their antioxidant activity and the distribution of the antioxidant compounds between the emulsion phases.

Eight new phragmalin limonoids with an 8,9,30-ortho-ester unit, together with eight known were isolated from Swietenia macrophylla King. Four known limonoids show a significant reduction in the larval weight of Hypsipyla grandella.

The removal process of antibiotics can occur through degradation by Cu⁺ species and also adsorption by Cu²⁺ hydroxides/oxides which can be formed on the surface of nanoparticles.

The ¹H pure shift nuclear magnetic resonance (NMR) experiment and the readily available (+)-1,1'-bi-2-naphtol (BINOL) chiral auxiliary can be used for routine chiral discrimination analysis of complex NMR spectra.

Through the surface response methodology, it was developed a direct methylation method of fatty acids in fruit samples.

Application of a novel voltammetric assay to evaluation of the total antioxidant capacity of pequi pulp, as alternative to spectrophotometric assays.

A sulfuric acid modified silica catalyst has great affinity for ketones, producing high yields of self-condensation products; in the presence of polyalcohols, ketals are easily prepared.

Ester blends from the transesterification of babassu oil and soybean oil were evaluated for their thermal properties. The babassu esters have been shown a positive influence on the crystallization point profile of the blends.

The Eley-Rideal mechanism and superior H₂O resistance of Mn_7.5/foamed metal nickel (FMN) catalyst in NH₃-selective catalytic reduction (SCR) reaction.

AISI 1020 steel was submitted to thermal degradation in acid crude oil. Microscopy images (light microscopy (LM), scanning electron microscopy/energy dispersive spectroscopy (SEM/EDX), atomic force microscopy (AFM), and Raman) were combined to understand the influence of corrosion rate. A passivation film was formed, which consisted of two layers (an external, formed of FeS, and an internal, composed of iron oxides).

Schematic representation of the procedure for determination of iodine value in biodiesel and vegetable oils.

A new compound 1-phenylethyl-O-α-L-rhamnopyranoside from C. crassipes, together with sixteen secondary metabolites were isolated from two endophytic fungi associated with Casearia sylvestris. The compound cyclo(D)-Pro-(D)-Phe exhibited potent antifungal and antioxidant activity and potent acetylcholinesterase (AChE) inhibition.

Surface modified silica aerogel nanoparticles.

Full factorial experimental design was applied for the treatment of carbamazepine, which is one of the most used drugs for treatment of neuropathic pain. The results showed that applied voltage is the most significant factor in this treatment process. Moreover, pathway degradation was monitored as well using liquid chromatography-time of flight/mass spectrometry (LC-TOF/MS).

Stages of the process of evaluation of the electrochemical characteristics of babassu alcohol.

Lycopene, lutein and beta-carotene capsules were supplemented to tilapia (genetically improved farmed tilapia, GIFT). An increase in the concentration of all compounds supplemented, as well as the preservation in the lipid quality was observed in the fillets, even after thermal processing.

A thiocarbamate-containing imidazolium reacts with Ag₂O affording the sterically hindered N-heterocyclic carbene (NHC)-silver complex.

A polydimethylsiloxane amino functionalized polymer network with graphite incorporated was used as electrode material to detect copper ions in aqueous solutions and sugarcane spirit.

In the milk of Holstein x Zebu crossbred cows fed on whole cottonseed, there is a modification of the lipid profile that reduces the concentration of saturated fatty acids (SFA), monounsaturated FA (MFA) and making it rich in polyunsaturated FA (PUFA), which is beneficial to health.