The trunk bark of Tabebuia caraiba Bignoniaceae was found to contain four novel iridoids, 6-O-E-p-coumaroyljioglutin D (2), 6-O-E-p-coumaroyl-3-demethyl-3-O-ethyljioglutin D (3), 6-O-E-p-coumaroyl-1-demethyl-1-O-ethyljioglutin D (4), 7-O-E-p-coumaroyljiofuranaldehyde (5), three known iridoids,...

This paper focuses on the recommendations for the insertion and management of the tree component in integrated crop-livestock-forest systems. The intensification of land use through systems integrated with trees can provide positive results as long as the tree component is adopted properly....

The aim of this work was to evaluate the physical and mechanical properties of wood-cement boards processed by vibro-dynamic compression method and by cold press method. Once vibro-compression still is unusual for production of this kind of material, there was also analyzed the influence of the...

Brazil has one of the highest rates of biological and cultural diversity of the planet. Fauna and flora uses and knowledge by quilombolas communities are important part of this diversity and demonstrates the social relevance of this people. Recognizing and valuing this knowledge is a relevant...

The expansion of the wood products industry results in the demand for species with technological and anatomical characteristics ideal mainly for export. In view of this, native species appear as an alternative to replace exotic species usually used. In order to improve the properties of this...

In the last decade, the area under cultivation of eucalyptus in Alagoas has grown exponentially. The territorialization of eucalyptus in Alagoas occupies broad areas of the east and wild mesoregions, and its objective is to promote the complex of wood, paper, and pulp, appropriating advantageous...

This study investigates the changes in color and in the chemical structures of the surface of curupixá wood (Micropholis sp.), which was exposed to artificial weathering with two wood finishing products. We treated the sample surfaces with varnish and stain, and then we set them to artificial...

The objective of this work was to study the influence of wood diameter on the productivity and properties of charcoal. In order to proceed to the carbonization, a circular masonry furnace with volumetric capacity of 12 st was used, coupled to a furnace for the combustion of gases. Eucalyptus sp....

The energy performance of wood biomass is a major condition for its application on an industrial scale. Knowing the storage conditions that enhance its use is required. This study aimed to characterize the energetic parameters of Pinus spp. in different storage methods. The applied methodology...

The Cryptomeria japonica is a conifer, from Japan, with the potential for pulp production, but little is known about their behavior when subjected to different reagent loads. Thus, the objective of the study was to evaluate the effect of the alkaline charge on the kraft pulping parameters of ...