Evaluation of Bioactive Compounds and Antibacterial Potentials of Moringa oleifera and Aloe vera Leaves Against Escherichia coli and Klebsiella pneumoniae

Authors

  • Mbahi Mary Asugu Department of Biological Sciences, Federal University, Kashere, P.M.B. 0182 Gombe, Gombe State, Nigeria
  • Suwaiba Muhammad Ladan Department of Chemical Sciences, Federal University, Kashere, P.M.B. 0182 Gombe, Gombe State, Nigeria
  • Adoyi Paul Michael Department of Biological Sciences, Federal University, Kashere, P.M.B. 0182 Gombe, Gombe State, Nigeria
  • Tyohemba Terhide Samuel Department of Biological Sciences, Federal University, Kashere, P.M.B. 0182 Gombe, Gombe State, Nigeria
  • Vawanje Kwaya Bitrus Department of Biological Sciences, Federal University, Kashere, P.M.B. 0182 Gombe, Gombe State, Nigeria

DOI:

https://doi.org/10.47430/ujmr.25103.027

Keywords:

Antibacterial activity, Bacteria, Gastroenteritis, Phytochemical, Escherichia coli, Klebsiella pneumoniae

Abstract

Study’s Excerpt:

  • Moringa oleifera and Aloe vera extracts inhibit coli and K. pneumoniae growth.
  • Ethanol extracts showed stronger antibacterial activity than aqueous ones.
  • Phytochemicals like alkaloids, flavonoids, and tannins were detected in both extracts.
  • Steroids were absent in both Moringa and Aloe vera leaf extracts.
  • Ethanol extracted more bioactive compounds than distilled water.

Full Abstract:

The medicinal properties shown by different medicinal plants are a result of the present phytochemicals in the plants. These phytochemicals are important sources for the treatment of diseases. Different phytochemicals have an extensive range of activities, which help to boost the immune system and give resistance against disease to protect the body from harmful pathogens. The study aimed to determine the phytochemical constituents and antibacterial activity of Moringa oleifera leaf and Aloe vera extracts against two (2) bacteria associated with gastroenteritis, namely, Escherichia coli and Klebsiella pneumoniae. The bacterial isolates were obtained from the Microbiology Laboratory of Gombe State University, Gombe. Phytochemical screening of the leaf extract was conducted to ascertain the presence and amount of bioactive components present in both plant extracts using two solvents (Ethanol and Distilled Water). The antimicrobial assay of the leaf extracts was performed using the disc diffusion method. The qualitative phytochemicals screening of the extract indicated the presence of Alkaloids, flavonoids, phenols, glycosides, saponins, and tannins, while steroids were absent in both plant samples. The result shows that the extracts were active against the microorganisms. The ethanol extract showed the highest activity against the bacterial isolates compared to the aqueous extracts. It is concluded that ethanol extract has a higher effect and possesses more antibacterial activities compared to the aqueous extracts, which is attributable to the fact that ethanol extracts more of the bioactive components of the plant compared to the aqueous.

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Published

30-06-2025

How to Cite

Asugu, M. M., Ladan, S. M., Michael, A. P., Samuel, T. T., & Bitrus, V. K. (2025). Evaluation of Bioactive Compounds and Antibacterial Potentials of Moringa oleifera and Aloe vera Leaves Against Escherichia coli and Klebsiella pneumoniae. UMYU Journal of Microbiology Research (UJMR), 10(3), 255–266. https://doi.org/10.47430/ujmr.25103.027