Physical And Mechanical Properties Of Extracted Wood Of Tectona Grandis And Antifungal Test Of The Extractive With Phanerochaete Chrysosporium
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Date
2011-02
Authors
Shuib, Nor Shifa
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Effects of sequential extraction of wood extractives on mechanical properties of
teak were evaluated. Variations in mechanical properties of extracted teak samples at the
different heights within the stem and at different distances from the pith of the tree were
determined and compared with un-extracted samples. Although, teak may be an
excellent, biodegradable and renewable alternative source of wood extractives used as
antimicrobial and other non-biocidal protection, the effect of its extraction on the
mechanical properties of derived wood material is discussed in this study.
Heartwood extracts obtained from Tectona grandis by successive extractions
with dichloromethane, ethanol and ethanol-toluene (1:2 v/v) were tested for their
biological activity against fungus Phanerochete chrysosporium. The major bioactive
compounds obtained from heartwood include 2 - Methyl anthraquinone, 1,4 -
Naphthoquinone and Lapachol, which were analyzed by GCMS and HPLC. The results
revealed that dichloromethane extract exhibit higher antifungal activity as compared to
ethanol and ethanol-toluene (1:2 v/v) extracts.
Description
Keywords
Tectona Grandis , Phanerochaete Chrysosporium