Medicinal plants are rich in bioactive components that utilized to treat various human ailments. They crucial healing as well. Phytochemical constituents responsible for the medicinal activity of plant species. screening is an important step identifying compounds present particular plants. Hence, this work, phytochemical leaf extract some traditional plants, namely Cannabis sativa, Ricinus comm...

Abstract This study investigated the effect of extraction time on yield, phytochemical content in form phenolic and flavonoid compounds, functional groups contained amla seed oil extract. The research was conducted by using hexane solvent equipped with a stirrer at speed 400 rpm 60 °C for 30 120 minutes. results showed that affected yield oil. highest obtained an It can be proven morphological ...

Intermolecular electron-transfer reactions have a crucial role in biology, solution chemistry and electrochemistry. The first step of such reactions is the expulsion of the electron to the solvent, whose mechanism is determined by the structure and dynamical response of the latter. Here we visualize the electron transfer to water using ultrafast fluorescence spectroscopy with polychromatic dete...

A sensitive determination method was developed for the analysis of pyrethroid pesticide residues in tomato samples using ionic liquid-based dispersive liquid-liquid microextraction. A hydrophobic ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate) and acetonitrile were used as the extraction solvent and dispersive solvent, respectively. The following experimental parameters affecting...

In the density functional theory formulation of molecular solvents, the solvation free energy of a solute can be obtained directly by minimization of a functional, instead of the thermodynamic integration scheme necessary when using atomistic simulations. In the homogeneous reference fluid approximation, the expression of the free-energy functional relies on the direct correlation function of t...

A green and efficient one pot, three component protocol for synthesis of naphthopyranopyrimidines by cyclocondensation of β-naphthol, aldehyde, and 6-amino-1,3-dimethyluracil using L-proline as a beneficial catalyst with high catalytic activity under solvent-free conditions at 100 °C is described. In this study, several types of aromatic aldehyde, containing electron-withdrawing groups as well ...