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Acta Amazonica

Print version ISSN 0044-5967On-line version ISSN 1809-4392

Acta Amaz. vol.25 no.1-2 Manaus  1995

http://dx.doi.org/10.1590/1809-43921995252072 

TECNOLOGIA

MANGROVE BARK: A RENEWABLE RESIN SOURCE FOR WOOD ADHESIVES

Casca de Mangue: Recurso Renovável de Resina para Adesivos para Madeira

Roland E VETTER 1  

Ana Paula Ribeiro BARBOSA 1  

1Instituto Nacional de Pesquisas da Amazonia - INPA, Coordenação de Pesquisas em Produtos Florestais, Caixa Postal 478, 69011-970 - Manaus, Amazonas, Brasil.


ABSTRACT

From four solutions tested to extract tannins from mangrove bark for wood adhesives, hot water is recommended. Hot water extracted 21.4% of formaldehyde-hydrochloric acid reactive polyphenols on oven-dry bark basis.

Key words: wood adhesives; wood extractives; tannin; mangrove

RESUMO

De quatro solventes testados para extrair taninos de casca de mangue para adesivos para madeira, água quente é a mais recomendada. Agua quente extraiu 21.4% de polifenois da casca seca reativos em formaldeido-acido cloridrico.

Palavras-Chave: adesivos para madeira; extrativos de madeira; tanino; mangue

Full text available only in PDF format.

Creative Commons License This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.