Comparative Phytochemical Profiling and Antimicrobial Potency of Ethanolic Extracts from Azadirachta Indica Leaves and Stem Bark
Abstract
This study investigated the phytochemical composition and antimicrobial efficacy of ethanolic extracts from neem (Azadirachta indica) leaves and stem bark against Staphylococcus aureus (bacterium) and Aspergillus niger (fungus). Phytochemical analysis revealed distinct profiles: leaves contained alkaloids, tannins, saponins, and steroids, while stem bark contained alkaloids, flavonoids, and saponins. Antimicrobial assays demonstrated that both extracts were effective, but stem bark extract was significantly more potent. Notably, the stem bark extract at 100 mg/mL exhibited superior activity against S. aureus, producing a larger zone of inhibition (30.00 mm) than the Control control (27.00 mm). Minimum Inhibitory Concentration (MIC) results confirmed the stem bark's greater potency, showing lower MIC values for both test organisms. The study concludes that neem stem bark is a highly effective antimicrobial source, with its efficacy being dependent on the specific plant part and extract concentration, highlighting its potential as a natural alternative to conventional antibiotics. Clinical Applications: Given its superior efficacy against S. aureus, neem stem bark extract at 100 mg/ml should be further investigated for developing topical antimicrobial formulations or complementary therapies for bacterial infections. Agricultural and Preservation Uses: Given its antifungal properties, neem stem bark extract could be explored as a natural preservative in food and agricultural products to combat fungal contaminants like A. niger.
Keywords
Azadirachta Indica; Antimicrobial Resistance; Phytochemicals; Minimum Inhibitory Concentration; Staphylococcus Aureus; Aspergillus Niger.
Citations
IRE Journals:
Tizhe Geoffrey Jacob, Wahedi Jasini Alexander, Muhammad Bashir "Comparative Phytochemical Profiling and Antimicrobial Potency of Ethanolic Extracts from Azadirachta Indica Leaves and Stem Bark" Iconic Research And Engineering Journals Volume 9 Issue 8 2026 Page 121-125 https://doi.org/10.64388/IREV9I8-1714083
IEEE:
Tizhe Geoffrey Jacob, Wahedi Jasini Alexander, Muhammad Bashir
"Comparative Phytochemical Profiling and Antimicrobial Potency of Ethanolic Extracts from Azadirachta Indica Leaves and Stem Bark" Iconic Research And Engineering Journals, 9(8) https://doi.org/10.64388/IREV9I8-1714083
About IRE Journals
IRE Journals is an open access online journals established with an aim to publish high quality of research work in various diciplines. We have more than 6 years in publications. Over 2500+ papers already published.
Important Links
For Authors
Volume 8:
Issue 1, Issue 2, Issue 3, Issue 4, Issue 5, Issue 6, Issue 7, Issue 8, Issue 9, Issue 10, Issue 11, Issue 12Volume 7:
Issue 1, Issue 2, Issue 3, Issue 4, Issue 5, Issue 6, Issue 7, Issue 8, Issue 9, Issue 10, Issue 11, Issue 12Volume 6:
Issue 1, Issue 2, Issue 3, Issue 4, Issue 5, Issue 6, Issue 7, Issue 8, Issue 9, Issue 10, Issue 11, Issue 12Volume 5:
Issue 1, Issue 2, Issue 3, Issue 4, Issue 5, Issue 6, Issue 7, Issue 8, Issue 9, Issue 10, Issue 11, Issue 12Volume 4:
Issue 1, Issue 2, Issue 3, Issue 4, Issue 5, Issue 6, Issue 7, Issue 8, Issue 9, Issue 10, Issue 11, Issue 12Volume 3:
Issue 1, Issue 2, Issue 3, Issue 4, Issue 5, Issue 6, Issue 7, Issue 8, Issue 9, Issue 10, Issue 11, Issue 12