Identification of Anti-Wood Rot Compounds in Teak (Tectona grandis L.f.) Sawdust Extract

The tropical hardwood sawdust of Tectona grandis L.f. from the wood processing industry was extracted and tested for anti-wood rot activity. Tectona grandis extract inhibited the brown rot fungi Gloeophyllum sepiarium, Gloeophyllum trabeum, Piptoporus betulinus and Serpula lacrymans, and the white r...

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Bibliographic Details
Published in:Journal of wood chemistry and technology 2008-12, Vol.28 (4), p.247-260
Main Authors: Sumthong, Pattarawadee, Romero-González, Roman R., Verpoorte, Robert
Format: Article
Language:English
Subjects:
Bjerkandera adusta
brown rot fungi
cellulase
deoxylapachol
Gloeophyllum sepiarium
Gloeophyllum trabeum
Piptoporus betulinus
Serpula lacrymans
tectol
Tectona grandis
tropical hard wood
white rot fungi
wood rot
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Summary:The tropical hardwood sawdust of Tectona grandis L.f. from the wood processing industry was extracted and tested for anti-wood rot activity. Tectona grandis extract inhibited the brown rot fungi Gloeophyllum sepiarium, Gloeophyllum trabeum, Piptoporus betulinus and Serpula lacrymans, and the white rot fungi Bjerkandera adusta, Merulius tremellosus, and Phlebia brevispora. Centrifugal partition chromatography was used to separate these compounds using n-hexane-MeOH-H 2 O (50:47.5:2.5) as a solvent system. The compounds deoxylapachol, tectoquinone, 2-hydroxymethylanthraquinone, 3′-OH-deoxyisolapachol (2-[(1E)-3-hydroxy-3-methylbut-1-enyl]naphthoquinone), hemitectol (2,2-dimethyl-2H-benzo[h]chromen-6-ol), and tectol were isolated from Tectona grandis sawdust CHCl 3 -MeOH (1:1) extract. Deoxylapachol inhibited the brown rot fungi Gloeophyllum sepiarium CBS 353.74 and Gloeophyllum trabeum CBS 318.50 and the white rot fungi Merulius tremellosus CBS 280.73 and Phlebia brevispora CBS 509.92. Hemitectol together with tectol showed a high percentage of cellulase inhibition followed by 3′-OH-deoxyisolapachol and deoxylapachol.
ISSN:0277-3813
1532-2319
DOI:10.1080/02773810802452592