JBCS

Hop flowers of different cultivars grown in the Northeast region of Brazil underwent QuEChERS extraction (1-4) using acetonitrile (ACN) with bitter acids (α and β) and the prenylflavonoid xanthohumol quantitated by liquid chromatography (HPLC).

Cu/ZnO catalysts with complex valence copper were prepared by acetylacetone precursors, and the Cu⁺-ZnO active site formed directly without pre-reduction treatment, which has a dual promotion effect on H₂ and CO₂.

Fatty composition, triterpenes, and flavonoid are present in three types of Brazilian geopropolis from the Amazonian region.

Correlation between metabolomic profiles and environmental factors: evaluating the impact on metabolite production in Schinopsis brasiliensis bark samples.

(a) Reduction of MTT to formazan (%) and (b) cell proliferation assay by cells exposed to: homopolymer PNIPAM, unmodified CNC and modified CNC-g-PNIPAM.

Phytochemicals from plantain pseudostem removing Cd(II) and Pb(II) from water. The phytochemicals can be immobilized on magnetite nanoparticles. These nanoparticles and contaminant metals are easily separated by an external magnet.

The present review describes a critical updated compilation of studies regarding the chemical composition, biological activities, technological studies, and biosynthesis of phenolic lipids of Anacardiaceae.

Microalgae are photosynthetic microorganisms with applications in biotechnology beside other uses, indicating their potential for a green and sustainable future.

The full understanding of spectrofluorometer parameters such as the excitation wavelength, excitation and emission slits, step, integration time, detection geometry as well as concentration of the samples help the acquisition of emission spectra free of artifacts.

This technical note summarizes the most common pitfalls in thermo-catalysis and how they might limit obtaining reliable catalytic experiments and data evaluation.