Estudo fitoquímico de ipês amazônicos (Tabebuia incana A. H. Gentry e Tabebuia serratifolia (Vahl) G. Nicholson) e definição de perfil cromatográfico de amostra comercial

Abstract

The Bignoniaceae family is one of the most studied in the last decades and the genus Tabebuia is the most populous of this family. Trees of this genus are known as ipes and widely used for landscaping in various parts of the world and mainly in the south and southeast regions of Brazil. The bark and leaves of pau d'arco (name known in some Latin countries and in the north and northeast of Brazil) are used as anti-inflammatory by decoction according to popular medicine. In studies for the identification of compounds in species of Tabebuia, the presence of naphthoquinones and their derivatives was confirmed. Other compounds such as lignans are also listed as components of extracts studied from leaves and bark of Tabebuia species. The biological activities promoted by substances isolated from samples of Tabebuia have been proven and are used in the production of drugs for anti-inflammatory and antineoplastic treatment. Studies to identify components of Tabebuia species present in the Amazon region are not very expressive and have at their main point of discussion compounds obtained from extracts of low and medium polarity. This work has the objective of analyzing the ethanolic extracts of T. incana, T. serratifolia and commercial Amazonian samples for the description of the possible shell components of these species.