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Efficacy of Erythropleum Suaveolens Water Extractives on the Durability of Ghanaian Antiaris toxicaria and Aanarium schweinfurthii

Author(s): A. Asamoah | K. Frimpong-Mensah | C. Antwi-Boasiako | N. A. Darkwa | A. S. Kusi

Journal: Pakistan Journal of Chemistry
ISSN 2220-2625

Volume: 3;
Issue: 3;
Start page: 123;
Date: 2013;
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Keywords: branch | eco-friendly | bio-deterioration | preservatives

In an effort to find new preservatives which are less hazardous, the efficacy of branch bark, leaf, and heartwood water extractivesof Erythropleum suaveolens (Potrodom), a highly durable timber species, was tested on Antiaris toxicaria (Chenchen) and Canarium schweinfurthii (Bediwonua) of low natural durability by presssure impregnation. Impregnated Chenchen and Bediwonua were exposed in the field for 6 months in accordance with a modified EN 252. Durability ratings, hardness and mass losses were measured in assessing their field performance. Though Bediwonua and Chenchen retained branch bark water extractives minimally, it conferred the highest resistance to deterioration. Branch bark water extractives represent a potentialsource of wood preservative.
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