Abstract

The present study was aimed at identifying the functional groups and phyto-constituents present in Xylopia aethiopica (Dunal) A Rich fruit using Fourier Transform Infrared Spectrometry (FTIR) and Gas chromatography-mass spectroscopy (GC-MS), spectroscopy. FTIR method was performed using Perkin Elmer Spectrophotometer and the characteristic peaks were detected. The phytochemical constituents were screened by GC-MS method and the compound detection employed the NIST Ver. 2.0 year 2005 library. The results of the GC-MS analysis showed different peaks determining the presence of 15 phytochemical compounds in the fruit extract of A. aetiopica. The phyto-constituents with their percentage areas include β-Ylangene(2.85%), 1,6-Cyclodecadiene, 1-methyl-5-methylene-8- (1-methylene)-, [s-(E,E)]- (1.71%); (-)-Spathulenol (1.23%);Trans-Z-α-Bisabolene epoxide (1.68%); n-Hexadecanoic acid (2.90%); Manoyl oxide (2.51%); Linoleic acid (8.14%); Oleic acid (3.13%); Cis-Z-α-Bisabolene (1.34%); Pimara-7,15-diene-3-one (8.86%); 1-Heptatricotanol (2.07%); Kaur-1b-ene (6.59%); β-Pimaric acid (36.39%); Doconexent (1.66%) and Androstan-17-one, 3-ethyl-3-hydroxyl-, (5a)- (17.48%). The result of the FTIR spectroscopic studies revealed the presence of arenes, alcohols, phenols, carboxylic acids, ethers, aromatics, aryl ketone, alkenes, saturated aldehyde and phenols. The findings of the study revealed that the GC-MS and FTIR spectral analyses of Xylopia aethiopica (Dunal) A. Rich fruit extract composed of various bioactive compounds which have are used in ethnomedicine to treat and cure infections and diseases.

Key words: Fourier Transform Infrared Spectrometry (FTIR), Gas chromatography-mass spectroscopy (GC-MS), phytochemical, Xylopia aethiopica.