The chemical constituents extractable from teak tree ( Tectona Grandis Linn) obtained from Fountain University, Osogbo

Abstract

A branch of Teak tree was cut, dried and grounded with mortarand pestle before using blender. The powder was extracted with four different solvents namely n-hexane, benzene, chloroform and distilled water;the extracts were concentrated using rotary evaporator. Gas chromatography-mass spectroscopy(GC-MS)wasused to identify various constituents in the samples.Bis(2-ethylhexyl)phthalate was the major constituent common to Chloroform(35.50 %)and benzene (26.78 %) while n-hexadecanoic acidwas the major constituent extracted by n-hexane (21.76 %) and water (24.16 %).Other phthalic acid derivatives extracted by both chloroform and benzene are Phthalic acid, di(2-propylpentyl)ester and di(oct-3-yl)ester.All the extracts were screened for termites repellence; all of them except waterextractrepelled termites in various degrees