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- Title
EFFICACY OF MIMOSA SOLID WATTLE WATER EXTRACT ON SELECTED GHANAIAN LESS USED TIMBER SPECIES.
- Authors
ASAMOAH, Akwasi; ACQUAH, Gifty; FRIMPONG-MENSAH, Kwasi; ANTWI-BOASIAKO, Charles
- Abstract
The need to diversify species utilization, from concentration on the traditional ones to less utilized timber species has always been pressing. Unfortunately, most of these LUS are not durable, thus the need for their preservation before use. Most preservative chemicals have very long biodegradable lives while others are not bio-degradable and pose a threat to the humans, other organisms and the environment. Contemporarily, one quickly bio-degradable source of wood preservative are extracts of natural organic compounds from parts of durable wood species. Hence, efficacy of TANAC S.A Mimosa Leopard Solid Wattle water extract was tested on two Ghanaian LUS: Canarium schweinfufthii (Bediwonua) and Amphimas pterocarpoides (Yaya) in accordance with a modified EN 252. Two Ghanaian LUS were exposed in the field in ground contact after pressure impregnation for 5 months rather than the minimum of 5 years prescribed by EN 252. Efficacy of this extract was measured by visual durability ratings, percentage hardness loss and percentage mass loss of the two Ghanaian LUS after exposure in the field. Though Amphimas pterocarpoides retained more of TANAC S.A Mimosa Leopard Solid Wattle water extract, it did not significantly improve the durability of Canarium schwenfurthii and Amphimas pterocarpoides. On the whole, Amphimas pterocarpoides proved to be more durable.
- Subjects
TIMBER; WOOD preservatives; ORGANIC compounds; BIODEGRADABLE products; POLYPHENOLS
- Publication
Pro Ligno, 2009, Vol 5, Issue 3, p29
- ISSN
1841-4737
- Publication type
Article