Selective solvent extraction of the bark of Rhizophora apiculata as an anti-termite Agent against Coptotermes gestroi

H. P S Abdul Khalil, N. H. Kong, M. N. Ahmad, A. H. Bhat, M. Jawaid, Jumat Salimon

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The anti-termite action of the bark of mangrove plant Rhizophora apiculata and four other species against the attack of the subterranean termite Coptotermes gestroi was investigated. The bark powder was extracted and partitioned into four main extracts-petroleum ether (PE), chloroform (CE), ethyl acetate (EE), and n-butanol (BE). Termite bioassay on different extracts was carried out. The total phenol content (TPC) of the extracts was determined by the Folin-Ciocalteu method and expressed as gallic acid equivalent (GAE). Butylated hydroxytoluene (BHT) and Butylated hydroxyanisole (BHA) were used as a positive control in the free-radical-scavenging activity test. It was believed that both the toxicity and antioxidant properties of extractives imparted natural resistance to the bark of R. apiculata. Considering wood weight loss, EE appeared to be the most potent inhibitor. The EE was then fractionated into three fractions (F1, F2, F3) by means of thin layer chromatography. F2 exhibited the lowest mean percentage weight loss. Through chemical and spectral analyses, we attribute the presence of bioactive constituents in the EE to a mixture of aromatic carboxylic acids or phenolics.

Original languageEnglish
Pages (from-to)286-304
Number of pages19
JournalJournal of Wood Chemistry and Technology
Volume29
Issue number4
DOIs
Publication statusPublished - 2009

Fingerprint

Solvent extraction
Carboxylic acids
Butylated hydroxyanisole
Butylated Hydroxyanisole
Thin layer chromatography
Butylated Hydroxytoluene
Gallic Acid
1-Butanol
Bioassay
Scavenging
Chloroform
Chlorine compounds
Carboxylic Acids
Phenol
Antioxidants
Free radicals
Butenes
Powders
Phenols
Free Radicals

Keywords

  • Anti-termite
  • Bark extracts
  • Coptotermes gestroi
  • Phenolics
  • Rhizophora apiculata

ASJC Scopus subject areas

  • Materials Science(all)
  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Selective solvent extraction of the bark of Rhizophora apiculata as an anti-termite Agent against Coptotermes gestroi. / Abdul Khalil, H. P S; Kong, N. H.; Ahmad, M. N.; Bhat, A. H.; Jawaid, M.; Salimon, Jumat.

In: Journal of Wood Chemistry and Technology, Vol. 29, No. 4, 2009, p. 286-304.

Research output: Contribution to journalArticle

Abdul Khalil, H. P S ; Kong, N. H. ; Ahmad, M. N. ; Bhat, A. H. ; Jawaid, M. ; Salimon, Jumat. / Selective solvent extraction of the bark of Rhizophora apiculata as an anti-termite Agent against Coptotermes gestroi. In: Journal of Wood Chemistry and Technology. 2009 ; Vol. 29, No. 4. pp. 286-304.
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