Professional competence is a necessary component of a person's professionalism in any area. The aim of the research is the formation of the professional activity of a future competitive specialist in the educational process of universities for the system-structural organization of professional training of biology students. The analysis of a wide…

The United States is divided into 15 broad ecological regions, each one home to a variety of fascinating native plants. In the Southwest, creosote bushes are found in and around the Mojave, Chihuahuan, and Sonoran deserts at elevations below 5,000 feet and is one of the oldest living things on Earth--approximately 11,700 years old. This evergreen…

A series of three practical sessions are designed to give students firsthand experience with the preparation of natural product extracts and assay using a live tissue preparation. Areca or betel nuts are the seeds from the fruit of the "Areca catechu" palm tree that is known to contain a number of pharmacologically active alkaloids. The…

A simple, robust, and reproducible method was developed for the isolation of (-)-menthol from peppermint oil and to study the effect of different types of leaving groups, catalysts, solvents, and tertiary base on the extent of esterification of (-)-menthol to (-)-menthyl acetate. In this experiment, students compare leaving group properties of…

An HPLC undergraduate experiment on the analysis of traditional Chinese medicine (TCM) has been developed. Two commonly used herbs ("glycyrrhizae radix" and "cinnamomi ramulus") are studied. Glycyrrhizin, cinnamic acid, and cinnamaldehyde are chosen as markers for the herbs. The dried herbs in their natural state and a TCM…