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EFFICACY OF MIMOSA SOLID WATTLE WATER EXTRACT ON SELECTED GHANAIAN LESS USED TIMBER SPECIES
Akwasi ASAMOAH
PhD Research Student - Kwame Nkrumah University
of Science and Technology, Kumasi, Ghanae
Tel: 00233 51 60375. Fax: 00233 51 60375.
E-mail:
asamoah38@yahoo.com
Gifty ACQUAH
Teaching Assistant - Kwame Nkrumah University
of Science and Technology, Kumasi, Ghana
E-mail: gecquah@yahoo.com
Kwasi FRIMPONG-MENSAH
Prof.Dr. - Kwame Nkrumah University of Science
and Technology, Kumasi, Ghana
E-mail:
frimpongmensah@yahoo.com
Charles ANTWI-BOASIAKO
Senior Lectrurer Dr. - Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
E-mail:
cantwiboas@yahoo.com
Abstract: The need
to diversify species utilization, from concentration
on the traditional ones to less utilized timber
species (LUS) 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 bio-degradable 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.
Key words: bio-degradable, ecologically,
preservation, percentage mass loss, percentage
hardness loss, visual durability ratings.
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Safety Data Sheet. Rua Torbjorn Weilbull, 199-Bairro
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