​​​​​​​June 2020, Vol. 5, No. 7, pp. 191-195. 

​​​Chemical composition of crude extract and essential oils isolated from baobab plant Adansonia digitata

A. A. Alafy¹, F.D. Davuram¹, D. Kubmarawa¹, J. O. Okechukwu¹, I. V. Emmanuel²*
¹Department of Chemistry, School of Physical and Applied Sciences, Moddibo Adama University of Technology, Yola, Adamawa State. Nigeria.
²Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State. Nigeria.

​​​*Corresponding author’s e-mail: iemmanuel385@gmail.com

​Abstract

​Antioxidant activities of the crude ethanolic and essential oils extracts of baobab plant, Adansonia digitata was determined using standard methods. Extracts of the fresh leaves were obtained using modified steam distillation. The antioxidant activities of the essential oils was screened using DPPH method in comparison to ascorbic acid as standard and the IC50 values for the plant's crude ethanolic extracts was found to be 0.5590 in Adansonia digitata, and 0.4281 for ascorbic acid; while the IC50 values obtained for essential oil was 0.4280 for ascorbic acid and absent in Adansonia digitata. Adansonia digitata was analysed by GC-MS, and 5 compounds from it were obtained and identified. They were 1,5-diamino-2-ethyl-1,2-dihydro-3H-pyrole-3,3,4-tricarbonitrile (37.14%), Phenylaniline (54.95%), Isopropenyl-4,5-dimethyloctahydroindene-4-carboxylic acid (3.26%), Octadecanoic acid (2.91%) and Phenyl-4-(1H-tetrazol-4,5-ylcarbamoyl)-butyric acid (1.75%). The results, thus support the traditional use of the plants to treat chronic diarrhoea, fever, diabetes, kidney stone, asthma, general fatigue, digestive disorder, respiratory infection and insect bites. Hence, suggesting its usage in the formulation of new antioxidant and antibacterial drugs and its credence as food.

Keywords:Adansonia digitata; DPPH; Antioxidant; GC-MS Analysis; Essential oil.

​References

  1. De Pasquale A. Pharmacognosy: the oldest modern science. J Ethnopharmacetical 1984;11:1-16.
  2. Kubmarawa D, Kidah MI, Shagal MH. Antimicrobial activities of essential oils from some medicinal and aromatic plants. British Biotechnology Journal 2016;14(3):1-6.
  3. Aliyu BS. Common ethno-medicinal plants of the semi-arid region of West Africa, their description and phytochemicals. Triumph Publishing Company 2008.
  4. Bakkali F, Averbeck S, Averbeck D, Idaomar M. Biological effects of essential oils– a review. Food Chem Toxicol 2008;46:446-75.
  5. Sangwan NS. Regulation of essential oil production in plants. Plant Growth Regulation 2016;34:3-21.
  6. Charles DJ, Simon JE. Comparison of extraction methods for the rapid determination of essential oil content and composition of basil. J American Society for Horticultural Science 2016;115:458-62.
  7. Sundarambal M, Muthusamy P, Radha R, Jerad S. A review on Adansonia digitata Linn. Phytojournal of Asia 2013;1(6):234-40.
  8. Sofowora A. The state of medicinal plants research in Nigeria. 1st ed., Ibadan: University Press, 1986, pp.  235-239.
  9. Harbone JB.  Phytochemical methods: a guide to modern techniques of plant analysis. 1st ed., London: Chapman and Hall Ltd., 1973, p. 279.
  10. Kubmarawa D, Ajoku GA, Enwerem NM, Okorie DA. Preliminary phytochemical and antimicrobial screening of 50 medicinal plants from Nigeria. Afr J Biotechnol 2011;6:1690-96.
  11. Singh S, Handa T, Narayanam M, Sahu A, Junwal M, Shah RP. A critical review on the use of modern sophisticated hyphenated tools in the characterization of impurities and degradation products. Journal of Pharmaceutical and Biomedical Analysis 2010;1(2):31-5.
  12. Adams RP. Identification of essential oil components by gas chromatograph/quadrupole mass spectroscopy. 4th ed., Carol Stream: Allured Publishing; 2007.
  13. Odabasoglu F, Aslan A, Cakir A. Comparison of antioxidant activity and phenolic content of three lichen species. Phytotherapy Research 2004;18:938-41.
  14. Rice-Evans C, Miller N, Paganga G. Antioxidant properties of phenolic compounds. Trends in Plant Science 1997;2:152-59.
  15. Scalbert A. Antimicrobial properties of tannins. Phytochemistry 1991;30:3875-83.
  16. Yahaya MF, Kumbarawa D, Yelwa JM, Runde M. Antioxidant and antimicrobial activity of essential oils extracted from aromatic plants. International Scientific Journal 2018;111:13-25.
  17. Baser KH. Hand book 0f essential Oil: science, technology, and application. London: CRC Press; 2010.

International Journal of Modern Science and Technology

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ISSN 2456-0235