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The Chemical constituents extractable from Teak tree (Tectona grandis Linn ) obtained from Fountain University, Osogbo

KAZEEM ADELANI ALABI, TOLUWALASE TEMITOPE OYEKU.




Abstract

A branch of Teak tree was cut, dried and grounded with mortar and 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) was used 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 acid was 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 except water extract repelled termites in various degrees.

Key words: Bis(2-ethylhexyl)phthalate, n-hexadecanoic acid, rotary evaporator, termites, mortar and pestle






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