dc.contributor.author |
Kirui S.C1 , Oyaro N1 , Kiprop A.K2 , Mburu F.G3 , Sirmah P.K3 and Rono S.J4 |
|
dc.date.accessioned |
2021-05-27T11:53:13Z |
|
dc.date.available |
2021-05-27T11:53:13Z |
|
dc.date.issued |
2014 |
|
dc.identifier.issn |
2229-712 |
|
dc.identifier.uri |
http://hdl.handle.net/123456789/10995 |
|
dc.description.abstract |
Terminalia spinosa species have very high durability and could survive for long while in
use, even in areas prone to attack by termites or fungi. Extractives have been found to have
different inhibition rates against fungi. Wood extractives play an important role in the
natural durability. The objective of this study was to investigate the durability of Terminalia
spinosa when exposed to wood decay fungi. Three brown-rot and three white-rot wood
decay fungi were screened for their capacity to degrade T. spinosa .Samples were evaluated
for decay by weight loss measurements using a modified E7-93 standard (AWPA) for block
test method, growth inhibition by solvent extract of T. spinosa was also tested. Brown rot
fungi P. placenta and C. puteana caused the highest weight losses of 16% and 15% on
heartwood extracted with dichloromethane and acetone, respectively. P. sanguines a
member of white rot fungi was the most aggressive in reducing weight by 24% on
toluene/ethanol extracted heartwood. The later was comparable to weight loss of P. patula
wood which was used as a positive control. All the test fungi species caused negligible
weight loss of less than 2% on un-extracted heartwood of T. spinosa implying that
extractives in the heartwood played an important role in preventing fungal infestation and
hence damage. Efficacy of extracts increased with increase in concentration. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
Effects of heartwood extractive of Terminalia spinosa on wood degradation by fungi. |
en_US |
dc.type |
Article |
en_US |