<i>In vitro</i> Investigation and GC-MS Analysis of the Chemical Constituents in the Fraction of Hexane Leaf Extract of <i>Tapinanthus bangwensis</i> (Engl. and K. Krause) Loranthaceae



  • Godwin O. Ihegboro Department of Biochemistry and Forensic Science, Faculty of Science, Nigeria Police Academy, Wudil, Kano, Nigeria.
  • Chimaobi J. Ononamadu Department of Biochemistry and Forensic Science, Faculty of Science, Nigeria Police Academy, Wudil, Kano, Nigeria.
  • Tajudeen A. Owolarafe Department of Biochemistry and Forensic Science, Faculty of Science, Nigeria Police Academy, Wudil, Kano, Nigeria.
  • Olayinka Onifade Department of Biochemistry, Faculty of Clinical Sciences, University of Lagos, Nigeria
  • Jideoliseh J. Udeh Department of Biochemistry and Forensic Science, Faculty of Science, Nigeria Police Academy, Wudil, Kano, Nigeria.
  • Afusat O. Saliu Department of Biochemistry and Forensic Science, Faculty of Science, Nigeria Police Academy, Wudil, Kano, Nigeria.
  • Daniel D. Abolaji Department of Biochemistry and Forensic Science, Faculty of Science, Nigeria Police Academy, Wudil, Kano, Nigeria.
  • Yerima M. Ibrahim Department of Biochemistry and Forensic Science, Faculty of Science, Nigeria Police Academy, Wudil, Kano, Nigeria.


Tapinanthus bangwensis, Anti-diabetic, Antioxidant, Fourier transition infrared, Gas chromatography-mass spectroscopy


The exploration of medicinal plants as potential alternative therapeutic model comes from the quality content of its chemical compounds that exacerbate remarkable activity, nevertheless, there is the need for further exploit. This study investigated the in vitro antioxidant and antidiabetic potential of the fraction (HEX-ETACF or CF 2) of hexane leaf extract of Tapinanthus bangwensis, but importantly analyzed the likely chemical compounds present in the sample. The study used GC-MS (gas chromatography-mass spectroscopy) machine and spectrophotometer to elucidate the possible compounds and estimate the antioxidant and antidiabetic property respectively. The fraction had significant amount of alkaloids content, while phenolics content appeared higher than the flavonoids content The antioxidant results had the activity of lipid peroxy, 2,2-diphenyl-1-hydrazyl and nitrite radicals significantly inhibited compared to the ferric radicals. Furthermore, the result showed that the fraction inhibited α-amylase's metabolic activity higher than α-glucosidase. The Fourier transition infrared (FTIR) chromatogram had ten peaks, indicated the fraction contains complex molecules that bears carbonyl, methyl, carboxyl and aromatic groups respectively. The GC-MS chromatogram revealed twenty-one peaks, such that butyl-9-octadecenoic acid (8.01%) and nonahexacontanoic acid (0.05%) had the highest and lowest percentage areas (% area). Another GC-MS chromatogram had twenty-seven peaks, with squalene (peak 23; 37.29%) and 1,2-benzenedicarboxylic acid, buty-2-ethylhexyl ester (peak 27; 19.87%) been significantly abundant, suggested the fraction was rich in phenolics and phthalates. Our findings revealed that the compounds demonstrate beneficial effects as antioxidant and antidiabetic agents.


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How to Cite

Ihegboro, G. O., Ononamadu, C. J., Owolarafe, T. A., Onifade, O., Udeh, J. J., Saliu, A. O., … Ibrahim, Y. M. (2024). <i>In vitro</i> Investigation and GC-MS Analysis of the Chemical Constituents in the Fraction of Hexane Leaf Extract of <i>Tapinanthus bangwensis</i> (Engl. and K. Krause) Loranthaceae: http://www.doi.org/10.26538/tjpps/v3i1.5. Tropical Journal of Phytochemistry and Pharmaceutical Sciences, 3(1), 143–152. Retrieved from https://tjpps.org/index.php/home/article/view/39