Aplicações para as Cascas de Árvores e para os Extractos Taninosos: Uma Revisão

In order to give a contribution to the development of processes aiming at making use of maritime pine bark, an abundant resource in Portugal, this paper highlights, in short, the nowadays importance of extracts of the bark or heartwood of some forest species, as well as the barks themselves. It is included a definition of tannins and their chemistry is described. The main applications are discussed, either those already established at the industrial scale or the latest research results: leather tanning, wood adhesives, pharmaceuticals and biocides, ion-