Origin, Early History, Cultivation, and Characteristics of the Traditional Varieties of Moroccan L.

has been cultivated and used for centuries in the north Moroccan Rif (local name is ). However, its history is poorly known and the date of its first introduction and dispersal in Morocco is still difficult to be precise. The purpose of the present work is to review the literature on the origin, history, and cultivation of in Morocco, as well as data on the morphological, genetic, and phytochemical characteristics of local cultivated varieties.

Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media.

A novel arginine-modified Heliotrope leaf (Arg@HL) was used as adsorbent for the crystal violet (CV) dye adsorption in a batch process. The physicochemical and morphological composition of Arg@HL were characterized by field-emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The experiments were carried out to investigate the factors that influence the dye uptake by the adsorbent, such as the contact time under agitation, adsorbent amount, initial dye concentration, temperature and pH of dye solution.