Results 11 to 20 of about 223 (49)

TANINOS CONDENSADOS DA CASCA DE ANGICO-VERMELHO (Anadenanthera colubrina var. cebil ) EXTRAÍDOS COM SOLUÇÕES DE HIDRÓXIDO E SULFITO DE SÓDIO [PDF]

open access: yes, 2013
O objetivo da pesquisa foi avaliar o teor de taninos extraído da casca de angico-vermelho (Anadenanthera colubrina (Vell.) Brenan var. cebil (Gris..) Alts.) com soluções aquosas de hidróxido de sódio, sulfito de sódio e hidróxido + sulfito, tendo como ...
Bastos, Paulo de Melo   +4 more
core  

Potencial anticariogênico de taninos de espécies florestais [PDF]

open access: yes, 2020
The study ofcompounds from secondary plant metabolism can increase our ability to understand the pharmacological potential of tropical flora.
Marques, Sarah Rebeka Rodrigues
core  

Studies on the antitermitic properties of wood and bark crude extracts of forest species from Central Amazonian, Brazil [PDF]

open access: yes, 2007
In wood preservation, efficiency evaluation of some natural compounds has been going on for some time, looking for substances that can be used to increase the useful life of wood species, and that are less damaging to the environment. In this context, we
Barbosa, Ana Paula   +2 more
core   +3 more sources

TECHNICAL VIABILITY OF TANNINS OF FOUR FOREST SPECIES OF BRAZILIAN SEMI-ARID REGION TO SKIDDER SKINS [PDF]

open access: yes, 2007
Os taninos vegetais s\ue3o encontrados em v\ue1rias esp\ue9cies florestais. Atualmente, os curtidores da Regi\ue3o Nordeste t\ueam no angico-vermelho (Anadenanthera colubrina var. cebil), sua \ufanica fonte de taninos.
de Azevedo, Tatiane Kelly Barbosa   +4 more
core  

Tannins of eucalyptus bark and its efficiency in wood glue [PDF]

open access: yes, 2016
The aim of this study was to evaluate the feasibility of using extracted tannins of eucalyptus bark with water and water under different concentrations of sodium carbonate and sodium sulphate as adhesive for wood.
Santiago, Sabrina Barros
core  

CARACTERIZAÇÃO FÍSICO-QUÍMICA DA MADEIRA DE SABIÁ (Mimosa caesalpiniaefolia Benth.) [PDF]

open access: yes, 2010
O objetivo deste trabalho foi avaliar algumas propriedades físicas e químicas da madeira de Mimosa caesalpiniaefolia Benth. e sua potencialidade como fornecedora de taninos.
Abreu, Heber dos Santos   +2 more
core  

Formulación y caracterización de adhesivos para tableros de madera empleando taninos de la cáscara de castaña y de la corteza de eucalipto [PDF]

open access: yes, 2013
En la actualidad la mayor parte de los productos de madera industriales se fabrican con resinas termoestables sintéticas, siendo las más empleadas las basadas en formaldehído. Sin embargo, consideraciones medioambientales y de salud, están conduciendo
Santos Ucha, Jorge
core   +1 more source

Uso de taninos de espécies florestais no tratamento de água para abastecimento [PDF]

open access: yes, 2015
The Cerrado is the second largest biome in South America and the savanna with the greatest biodiversity in the world, however, it is considered a "hotspot" mainly by the great timber exploitation intended for charcoal production.
Sousa, Thaís Brito
core  

Ocean acidification: physiological response from fish to cell [PDF]

open access: yes, 2022
The atmospheric concentrations of CO2 have increased at an unusually rapid rate, from pre-industrial levels of 280 μatm to current levels of 414 μatm. The oceans, one of the largest CO2 reservoirs, continuously absorb the atmospheric CO2, resulting in a ...
Carvalho Alves, Alexandra
core  

Extracción, caracterización, estabilidad y ruta biosintética de taninos y fenoles [PDF]

open access: yes, 2019
El presente trabajo trata acerca de la extracción, caracterización, estabilidad y ruta biosinteticas de taninos y fenoles. Los fenoles o mezclas fenólicas son mezclas naturales cuyas estructuras atómicas contienen algo como una reunión de fenol, un ...
Donayre Sias, Kimberlit
core   +2 more sources

Home - About - Disclaimer - Privacy