Extração e análise da cafeína presente em diferentes amostras e resíduos de café, chá e erva-mate

Abstract

Stimulant drinks are regularly consumed by billions of people, mainly due to their properties and benefits to the body. It is a compound of great industrial interest and can be used in several industrial sectors, such as food, cosmetics and pharmaceutical industries, being present in more than 63 species of plants, such as coffee (Coffea spp), tea (Camellia sinensis) and mate (Ilex paraguariensis). Although of the great demand for these beverages, tons of waste are generated every year, which are discarded without any application, disregarding the compounds who still present and harming the environment. As a way of reusing these residues, and due to the growing study and market interest in the extraction of caffeine from natural products, the present work aims to verify the viability of its treatment and use, through the continuous solid-liquid extraction of caffeine from different samples of coffee, tea and mate (herb), followed by their characterization and analysis.