Antioxidant And Antifungal Activities Of Some Malaysian Commercial Timbers
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Date
2009-10
Authors
Mahamud, Amalia
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Antioxidant and antifungal activities of eleven hardwood species of Malaysian
commercial timbers from seven families were studied. Methanolic extracts from bark,
heartwood and sapwood of each species were subjected to 1,1’-diphenyl-2-picrylhydrazyl
(DPPH) for the antioxidant activity determination. Total phenolics were evaluated using
the Folin-Ciocalteau method. The tested extracts of Angsana bark, Keruing latek bark and
sapwood, all three parts of Kekatong, Merpauh periang bark, Bintangor bukit bark and
sapwood, and Sentul bark did showed antioxidant activity. Bintangor bukit bark was
further fractionated by column chromatography (CC) and liquid-liquid (partition)
chromatography (LLC). Catechol with a few other compounds such as phenol, syringol,
guaiacol and 4-methylcatechol were detected by pyrolysis gas chromatography mass
spectrometry (Py-GC/MS) as the most important compounds responsible for Bintangor
bukit bark to scavenge the free radicals.
Description
Keywords
Antioxidant And Antifungal Activities , Malaysian Commercial Timbers