Métabolisme secondaire des plantes M1 Biodiversité et Physiologie Végétale

Abstract

Medicinal plants have begun to occupy a significant place in recent years due to the multiple benefits of these natural substances in various sectors of the agri-food industry, cosmetics, and pharmaceuticals. They are used in traditional medicine, and at least some possess medicinal properties; their action stems from their chemical compounds (primary or secondary metabolites) or from the synergy between the different compounds present. Plants have always been widely used by humans as food sources, decorative objects, in beverages, and as colorings. Spices and aromatic herbs used in food are largely responsible for the pleasures of the table, considered condiments and flavorings. For centuries, cosmetic products have utilized the virtues associated with plants. Today, more and more plants are being used in the composition of products designed to improve physical appearance; plant-based preparations, such as floral waters (witch hazel, rose, orange blossom, cornflower), flower infusions, or essential oils, enrich the formulas of a large number of cosmetics.